bell helicopter 206l1-mm-lr-rev34

This revision updates the front matter and Chapters 4 and 27.

Please incorporate these updates into the manual in accordance with the Log ofPages attached.

Bell Helicopter Textron would like to thank its customers for providing us withcustomer feedback. This information is appreciated and allows us to improve thequality of our manuals with each revision.

3 DECEMBER 1977REVISION 34 7 NOVEMBER 2012

REVISION ONLY BHT-206L1-MM-1

NOTICE

Export Classification C, ECCN EAR99

BHT-206L1-MM-1

NOTICE

The instructions set forth in this manual, as supplemented or modified by Alert Service Bulletins (ASB) orother directions issued by Bell Helicopter Textron Inc. and Airworthiness Directives (AD) issued by theapplicable regulatory agencies, shall be strictly followed.

Maintenance Manual also applicable to 206L1 helicopters with Engine Upgrade kit 206-706-520 installedper BHT-206-SI-2050, and 206L1+ helicopters (Increased Gross Weight kit 206-706-530 installed perBHT-206-SI-2052).


MAINTENANCE MANUALVOLUME 1

GENERAL INFORMATION

BHT-206L1-MM-1

NOTICE

The instructions set forth in this manual, as supplemented or modified by Alert Service Bulletins (ASB) orother directions issued by Bell Helicopter Textron Inc. and Airworthiness Directives (AD) issued by theapplicable regulatory agencies, shall be strictly followed.

Maintenance Manual also applicable to 206L1 helicopters with Engine Upgrade kit 206-706-520 installedper BHT-206-SI-2050, and 206L1+ helicopters (Increased Gross Weight kit 206-706-530 installed perBHT-206-SI-2052).


3 DECEMBER 1977REVISION 34 7 NOVEMBER 2012

COPYRIGHT NOTICECOPYRIGHT 2012BELL HELICOPTER TEXTRON INC.AND BELL HELICOPTER TEXTRONCANADA LTD.

ALL RIGHTS RESERVED

MAINTENANCE MANUALVOLUME 1

GENERAL INFORMATION

BHT-206L1-MM-1

PN Rev. 34 7 NOV 2012

Additional copies of this publication may be obtained by contacting:Commercial Publication Distribution Center

Bell Helicopter Textron Inc.P. O. Box 482

Fort Worth, Texas 76101-0482

PROPRIETARY RIGHTS NOTICE

These data are proprietary to Bell Helicopter Textron Inc. Disclosure,reproduction, or use of these data for any purpose other than helicopteroperation or maintenance is forbidden without prior written authorization fromBell Helicopter Textron Inc.


DESTINATION CONTROL STATEMENT

WARNING This document contains technical data whose export is restrictedby the Arms Export Control Act (Title 22, U.S.C., Sec 2751, et. seq.) or the ExportAdministration Act of 1979, as amended, Title 50, U.S.C., App. 2401 et. seq.Violations of these export laws are subject to severe criminal penalties.Disseminate in accordance with provisions of DoD Directive 5230.25.

BHT-206L1-MM-1

7 NOV 2012 Rev. 34 Warning

WARNINGTHIS MANUAL APPLIES ONLY TO HELICOPTERS AND COMPONENTSMAINTAINED IN ACCORDANCE WITH BELL HELICOPTER TEXTRON(BELL) APPROVED PROCEDURES USING BELL APPROVED PARTS.

ALL INSPECTION, REPAIR AND OVERHAUL PROCEDURES PUBLISHEDBY BELL, INCLUDING PART RETIREMENT LIFE, ARE BASED SOLELY ONTHE USE OF BELL PARTS THAT HAVE BEEN MAINTAINED USING BELLAPPROVED DATA. THE DATA PUBLISHED HEREIN OR OTHERWISESUPPLIED BY BELL IS NOT APPLICABLE TO NON-BELL PARTS ORPARTS THAT HAVE BEEN REPAIRED USING DATA AND/OR PROCESSESNOT APPROVED BY BELL.

BELL IS NOT RESPONSIBLE FOR ANY PART OTHER THAN THOSE THATIT HAS APPROVED.

BEFORE PERFORMING ANY PROCEDURE CONTAINED IN THIS MANUALYOU MUST INSPECT THE AFFECTED PARTS AND RECORDS FOREVIDENCE OF ANY MANUFACTURE, REPAIR, REWORK OR USE OF APROCESS NOT APPROVED BY BELL.

IF YOU IDENTIFY OR SUSPECT THE USE OF PARTS NOT AUTHORIZEDBY BELL, EITHER REMOVE THE AFFECTED ITEM FROM THE AIRCRAFTOR OBTAIN INSTRUCTIONS FOR CONTINUED AIRWORTHINESS FROMTHE MANUFACTURER OR THE ORGANIZATION THAT APPROVED THEREPAIR.


BHT-206L1-MM-1

CSS Rev. 34 7 NOV 2012

CUSTOMER SUPPORT AND SERVICES

Flying smart means that no matter where you are, or what time it is, you can make a calland get additional information, clarification, or advice on a technical or operational issueconcerning your helicopter or information contained in our Technical Publications.Product Support Engineering (PSE) is just a phone call away and may be contacted asfollows:

For additional information on Customer Support and Services as well as Product SupportEngineering (PSE) and your local Customer Service Engineering (CSE) network, pleaseaccess http://www.bellhelicopter.com/support.

Model 206 or 407Phone: 450-437-2862 or 800-243-6407 (U.S./Canada)Fax: 450-433-0272E-mail: [email protected]

Model 222, 230, 427, 429, or 430Phone: 450-437-2077 or 800-463-3036 (U.S./Canada)Fax: 450-433-0272E-mail: [email protected]

Model 204, 205, 212, or 412Phone: 450-437-6201 or 800-363-8028 (U.S./Canada)Fax: 450-433-0272E-mail: [email protected]

Model 214, 210, HUEY II and All Bells Active and Surplus Military Medium Helicopter ModelsPhone: 817-280-3548Fax: 817-280-2635E-mail: [email protected]

Model OH-58, TH-67, TH-57, Both Active and Surplus MilitaryPhone: 817-280-3548Fax: 817-280-2635E-mail: [email protected]


BHT-206L1-MM-1LOG OF REVISIONS

Insert latest revision pages and dispose of superseded ones.

On a revised page, the text and/or illustration affected by the latest revision is shown by a vertical line. A revisedpage with only a vertical line next to the page number indicates that text has shifted or that non-technicalcorrection(s) were made on that page.

Page No. Rev No. Page No. Rev No. Page No. Rev No.

LOG OF PAGES

Original ........ 0 ........... 03 DEC 77Revision....... 1 ........... 20 NOV 78Revision....... 2 .............30 JUL 79Revision....... 3 ........... 01 OCT 79Revision....... 4 ............01 FEB 80Revision....... 5 ............08 FEB 80Revision....... 6 ............ 24 JUN 81Revision....... 7 ............15 SEP 81Revision....... 8 ........... 09 NOV 81Revision....... 9 ........... 18 NOV 81Revision....... 10 .......... 08 FEB 82Revision....... 11 .......... 24 JUN 82

Revision ...... 12......... 01 MAR 83Revision ...... 13......... 31 MAR 84Revision ...... 14......... 07 MAR 85Revision ...... 15.......... 01 JUN 87Revision ...... 16..........22 AUG 95Revision ...... 17..........23 APR 01Revision ...... 18..........14 MAY 02Revision ...... 19..........09 DEC 02Revision ...... 20..........22 DEC 03Revision ...... 21...........07 JUL 06Revision ...... 22..........09 OCT 06Revision ...... 23..........30 APR 08

Revision .......24 ......... 31 OCT 08Revision .......25 ..........05 JAN 09Revision .......26 ......... 26 MAY 09Revision .......27 ......... 25 SEP 09Revision .......28 .........30 NOV 09Revision .......29 ......... 27 SEP 10Revision .......30 ..........25 FEB 11Revision .......31 ..........08 APR 11Revision .......32 ..........29 FEB 12Revision .......33 ..........01 JUN 12Revision .......34 .........07 NOV 12

Cover....................................... 34Title.......................................... 34PN ........................................... 34Warning ................................... 34

30 32.....................................3132A/32B ...................................3133 36.....................................3037/38........................................30

123 124 ................................ 30125/126 ................................... 30127/128 ................................... 30129/130 ................................... 31CSS......................................... 34A D ....................................... 34Help......................................... 34Customer Feedback................ 34Helicopter Sales Notice ........... 34Warranty.................................. 34BR ........................................... 34TR ........................................... 34i/ii ............................................. 34

Chapter 11/2 ........................................... 243 .............................................. 334 6 ........................................ 24

Chapter 41 14 ...................................... 34

Chapter 51 5 ........................................ 306 .............................................. 317 12 ...................................... 3013/14 ....................................... 3015/16 ....................................... 3017 29 .................................... 30

39 46.....................................3047/48........................................3049/50........................................3051 54.....................................3055/56........................................3057 62.....................................3063/64........................................3065 69.....................................3070.............................................3171/72........................................3173 78.....................................3079/80........................................3081 86.....................................3087/88........................................3089 92.....................................3093/94........................................3095 104...................................30105/106....................................30107/108....................................30109 112 .................................30113/114 ....................................30115/116 ....................................30117 118 .................................30119/120 ....................................30121/122....................................33

131/132 ................................... 30133/134 ................................... 30135 136 ................................ 33137/138 ................................... 30139 142 ................................ 30143/144 ................................... 30145 146 ................................ 30147/148 ................................... 30149/150 ................................... 30151/152 ................................... 30153 156 ................................ 30157/158 ................................... 30159 165 ................................ 30166 .......................................... 33167 170 ................................ 30171/172 ................................... 30173 174 ................................ 30175/176 ................................... 30177 180 ................................ 30181/182 ................................... 30183 194 ................................ 30195/196 ................................... 30197/198 ................................... 30199 200 ................................ 31201/202 ................................... 31

7 NOV 2012 Rev. 34 AExport Classification C, ECCN EAR99

BHT-206L1-MM-1LOG OF PAGES (CONT)


Chapter 61 4........................................... 0

Chapter 71/2.............................................. 03................................................. 74................................................. 0

Chapter 81/2............................................ 243 18....................................... 24

Chapter 91 2........................................... 03/4.............................................. 0

Chapter 101............................................... 242................................................. 03 4........................................... 15/6............................................ 24

Chapter 111/2............................................ 243 8......................................... 249............................................... 3010 16..................................... 24

Chapter 121............................................... 242............................................... 313/4............................................ 215............................................... 246............................................... 217/8............................................ 219............................................... 2110 12..................................... 2413 14..................................... 2115/16........................................ 2417 19..................................... 2420 21..................................... 2122............................................. 2423 24..................................... 2125 27..................................... 2428............................................. 2929/30........................................ 24

36 ............................................ 2137 38 .................................... 3139 40 .................................... 2441 44 .................................... 21

Chapter 20Deleted.................................... 24

Chapter 211/2 ........................................... 243 14 ...................................... 24

Chapter 251 ................................................ 72 5 .......................................... 06 ................................................ 77 ................................................ 08 ................................................ 79/10 ........................................... 011 12 ...................................... 713/14 ......................................... 7

Chapter 261 2 .......................................... 0

Chapter 271 2 ........................................ 242A/2B ...................................... 243 ................................................ 04 ................................................ 75 ................................................ 06 ................................................ 77 ................................................ 08 .............................................. 248A 8D ................................... 249 ................................................ 710 ............................................ 2411 ............................................ 1512 ............................................ 1312A/12B .................................. 1313 ............................................ 2414 ............................................ 1315 .............................................. 016 .............................................. 717 ............................................ 2418 .............................................. 7

25............................................. 1526............................................... 726A/26B..................................... 727............................................. 1528............................................... 029............................................. 1530............................................... 031 43..................................... 2444............................................. 3445 56..................................... 24

Chapter 281/2.............................................. 73 4........................................... 74A/4B......................................... 75................................................. 06................................................. 77 9........................................... 010 12....................................... 713/14.......................................... 015 16....................................... 017 18....................................... 718A 18B.................................. 718C/18D .................................... 719 22....................................... 022A/22B..................................... 723............................................... 724............................................... 025 26....................................... 727/28.......................................... 7

Chapter 291 2......................................... 242A/2B....................................... 243 4......................................... 215 6......................................... 247............................................... 218 10....................................... 2410A/10B................................... 2411 12..................................... 2113............................................. 3114............................................. 2115 16..................................... 3117 18..................................... 2119 20..................................... 2420A/20B................................... 2431 32..................................... 3133 34..................................... 2135............................................. 30

19 20 .................................... 2420A/20B .................................. 2421 24 ...................................... 0

21............................................. 2422............................................. 2123 24..................................... 24

B Rev. 34 7 NOV 2012 Export Classification C, ECCN EAR99



25/26 ........................................2427 34 .....................................2135/36 ........................................21

Chapter 301 2 ...........................................0

Chapter 321 ...............................................212 ...............................................153 4 ...........................................05 12 .......................................2113/14 ........................................2115 16 .....................................21

Chapter 521 2 .........................................242A 2B ....................................243 .................................................04 6 ...........................................77 ...............................................248 11 .........................................012 .............................................2413 14 .......................................015 .............................................2416 19 .......................................020 .............................................2421 22 .......................................122A 22B ..................................122C/22D.....................................123 ...............................................124 .............................................2424A/24B ...................................2425 ...............................................026 .............................................2426A/26B ...................................2427 ...............................................028 .............................................24

Chapter 531 8 .........................................219/10 ..........................................2111 16 .....................................2117/18 ........................................2119 .............................................2120 .............................................24

Chapter 561 18......................................... 0

Chapter 651 2......................................... 282A/2B....................................... 283 6........................................... 07............................................... 248................................................. 79............................................... 1510............................................. 1310A/10B................................... 1311............................................. 1312............................................. 1513/14.......................................... 715............................................. 1516 17..................................... 1318............................................. 1518A .......................................... 1518B ............................................ 718C/18D .................................... 719............................................. 2920............................................. 2421............................................. 1322............................................... 723............................................... 124............................................... 725............................................. 1326............................................... 727 28....................................... 029............................................. 1330 31..................................... 1532............................................. 1333 34..................................... 1534A .......................................... 1334B .......................................... 2435............................................. 1536............................................... 037............................................... 738............................................. 1339/40........................................ 2441 42..................................... 2442A/42B................................... 2943............................................. 1544............................................. 2444A/44B................................... 24

48 49 .....................................2850 .............................................2951 54 .....................................28

Chapter 661 ...............................................242 ...............................................302A 2B ....................................302C ............................................312D ............................................302E/2F .......................................243 ...............................................134 8 ...........................................09 ...............................................2410 ...............................................011 ...............................................712 .............................................1312A/12B ...................................1313 14 .....................................2414A/14B ...................................2415 18 .....................................2418A 18D ................................2418E/18F ...................................2418G 18N................................2419 20 .....................................2420A 20B ................................2421 22 .....................................2422A/22B ...................................2423 25 .....................................2426 .............................................3026A 26F ................................3026G/26H...................................3027 29 .....................................2430 ...............................................030A/30B ...................................2431 32 .....................................2433 ...............................................034 36 .....................................2436A 36B ................................2437 38 .....................................2438A/38B (Deleted) ...................1339 (Deleted) .............................2440 42 .....................................2442A/42B ...................................2443 52 .....................................2452A 52H ................................2421/22 ........................................2423 24 .....................................21

45............................................. 1546............................................. 2847............................................. 29

52I/52J .....................................2453 54 .....................................2454A 54B ................................24

7 NOV 2012 Rev. 34 CExport Classification C, ECCN EAR99



55 66..................................... 2466A/66B................................... 2467............................................. 1568............................................. 2468A/68B................................... 1569............................................... 970............................................. 2471............................................... 772............................................. 3172A/72B................................... 3173............................................. 1574 75..................................... 1376............................................. 1577 78..................................... 3178A/78B................................... 3179............................................. 1080............................................... 081 82..................................... 1382A/82B................................... 1383 84..................................... 1385............................................... 086............................................. 13

86A/86B .................................... 787 .............................................. 788 ............................................ 1389/90 ....................................... 15

Chapter 711 11 ...................................... 2412 ............................................ 2913 23 .................................... 2424 ............................................ 3025/26 ....................................... 3027 28 .................................... 2429/30 ....................................... 2431 32 .................................... 2433/34 ....................................... 2435 42 .................................... 2443 ............................................ 2944 48 .................................... 2449/50 ....................................... 2451 62 .................................... 2463/64 ....................................... 24

Chapter 761/2............................................ 243 14....................................... 2415/16........................................ 24

Chapter 791................................................. 02............................................... 243................................................. 04............................................... 245 6........................................... 77............................................... 138............................................... 24

ConsumableDeleted ....................................24

IndexDeleted ....................................24D Rev. 34 7 NOV 2012 Export Classification C, ECCN EAR99

H ELP E VALUATE

L OGISTICS P UBLICATIONS

Have you found something wrong with this manual an error, an inconsistency, unclear instructions, etc.? Although we strive for accuracy and clarity, we may make errors on occasion. If we do and you discover it, we would appreciate your telling us about it so that we can change whatever is incorrect or unclear. Please be as specific as possible.

Your complaint or suggestion will be acknowledged and we will tell you what we intend to do.

You may use the enclosed Customer Feedback form, as appl icable, to inform us where we have erred.

Your assistance is sincerely appreciated. Export Classification C, ECCN EAR99

CUSTOMER FEEDBACKRETURN VIA FAX TO PRODUCT SUPPORT ENGINEERING (450) 433-0272, or MAIL TO THE ADDRESS ON THE NEXT PAGE.

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HELICOPTER SALES NOTICE

Please complete this form and return by mail, e-mail ([email protected]), orfax (817-280-6466, Attention: CPDC). This will ensure that the new owners/operators receiveupdates to their Bell Helicopter Textron Technical Manuals and Bulletins.

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BUSINESS REPLY MAILFIRST CLASS PERMIT NO. 1744 FORT WORTH, TEXAS


BHT-206L1-MM-1SPARE PARTS WARRANTYONE YEAR/1,000 HOURS PRORATED

WARRANTY AND REMEDY: Seller warrants each new helicopter part or helicopter part reconditioned by seller to be free from defectin material and workmanship under normal use and service and if installed on Bell model helicopters. Sellers sole obligation under thiswarranty is limited to replacement or repair of parts which are determined to Sellers reasonable satisfaction to have been defectivewith 1,000 hours of operation or one (1) year after installation, whichever occurs first and reimbursement of reasonable freight charges.After 200 hours of use, there will be a prorated charge to the Purchaser for replacement parts (prorating the hours of total use againstthe then applicable part life or 2,000 hours, whichever is the lesser). Defective parts must be reported in writing to the Sellers WarrantyAdministration within 90 days of being found defective. Replacement of parts may be with either new or reconditioned parts, at Sellerselection. Warranty adjustment is contingent upon the Purchaser complying with the Warranty Remedies as described in theCommercial Warranty Information brochure and the Sellers Warranty Administration disposition instructions for defective parts. Failureto comply with all of the terms of this paragraph may, at Sellers sole option, void this warranty.

NOTE: Parts, components and assemblies of all new helicopters may have been restored or reworked due to mars, blemishes, dentsor other irregularities during the manufacturing process. Such restoration and/or rework is permitted under Sellers approvedmanufacturing and engineering processes and guidelines. The restoration and/or rework so completed does not render such itemsdefective in material or workmanship.

THIS WARRANTY IS GIVEN AND ACCEPTED IN PLACE OF (i) ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANT ABILITY ANDFITNESS FOR A PARTICULAR PURPOSE AND (ii) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACTORIN TORT (DELICT), INCLUDING PRODUCT LIABILITIES BASED UPON STRICT LIABILITY, NEGLIGENCE, OR IMPLIEDWARRANTY IN LAW.

This warranty is the only warranty made by Seller. The Purchasers sole remedy for a breach of this warranty or any defect in a part isthe repair or replacement of helicopter parts and reimbursement of reasonable freight charges as provided herein. Seller excludesliability, whether as a result of a breach of contract or warranty, negligence or strict product liability, for incidental or consequentialdamages, including without limitation, damage to the helicopter or other property, costs and expenses resulting from required changesor modifications to helicopter components and assemblies, changes in retirement lives and overhaul periods, local customs fees andtaxes, and costs or expenses for commercial losses or lost profits due to loss of use or grounding of helicopters or otherwise.

Seller makes no warranty and disclaims all liability in contract or in tort (delict), including, without limitation, negligence and strict tort(delictual) liability, with respect to work performed by third parties at Purchasers request and with respect to engines, engineaccessories, batteries, radios, and avionics, except Seller assigns each manufacturers warranty to Purchaser to the extent suchmanufacturers warranty exists and is assignable.

This warranty shall not apply to any helicopter part which has been repaired or altered outside Sellers factory in any way so as, inSellers judgment, to affect its stability, safety or reliability, or which has been subject to misuse, negligence or accident, or which hasbeen installed in any aircraft which has been destroyed unless that helicopter has been rebuilt by Bell. A list of destroyed aircraft isobtainable from Bell Product Support. Repairs and alterations which use or incorporate parts and components other than genuine Bellparts or parts approved by Bell for direct acquisition from sources other than Bell itself are not warranted by Bell, and this warranty shallbe void to the extent that such repairs and alterations, in Sellers sole judgment, affect the stability, safety or reliability of the helicopteror any part thereof, or damage genuine Bell or Bell-approved parts. No person, corporation or organization, including Bell CustomerService Facilities, is authorized by Seller to assume for it any other liability in connection with the sale of its helicopters and parts.

NO STATEMENT, WHETHER WRITTEN OR ORAL, MADE BY ANY PERSON, CORPORATION OR ORGANIZATION, INCLUDINGBELL CUSTOMER SERVICE FACILITIES MAY BE TAKEN AS A WARRANTY NOR WILL IT BIND SELLER.

Seller makes no warranty and disclaims all liability with respect to components or parts damaged by, or worn due to, corrosion. Sellermakes no warranty and disclaims all liability for consumables (wear items) which are defined as items required for normal and routinemaintenance or replaced at scheduled intervals shorter than the warranty period. Consumables include but are not limited to engineand hydraulic oil, oil filters, packings and o-rings, anti-corrosion and/or sealing compounds, brush plating material, nuts, bolts, washers,screws, fluids, compounds, and standard aircraft hardware that is readily available to aircraft operators from sources other than Seller.

All legal actions based upon claims or disputes pertaining to or involving this warranty including, but not limited to, Sellers denial of anyclaim or portion thereof under this warranty, must be filed in the courts of general jurisdiction of Tarrant County, Texas or in the UnitedStates District Court for the Northern District of Texas, Ft. Worth Division located in Ft. Worth, Tarrant County, Texas. In the event thatPurchaser files such an action in either of the court systems identified above, and a final judgment in Sellers favor is rendered by suchcourt, then Purchaser shall indemnify Seller for all costs, expenses and attorneys fees incurred by Seller in defense of such claims. Inthe event Purchaser files such a legal action in a court other than those specified, and Seller successfully obtains dismissal of thataction or transfer thereof to the above described court systems, then Purchaser shall indemnify Seller for all costs, expenses andattorneys fees incurred by Seller in obtaining such dismissal or transfer.

January 20077 NOV 2012 Rev. 34 WarrantyExport Classification C, ECCN EAR99

BHT-206L1-MM-1

BULLETIN RECORD

Unless otherwise specified, all applicable Alert Service Bulletins and Technical Bulletins issued prior to andincluding the bulletins listed below have been incorporated in this manual. Subsequent applicable bulletins will beincorporated in future revisions/reissues.

ALERT SERVICE BULLETINS

ASB NUMBER SUBJECT DATE

206L-10-166 Hydraulic Pump Part Number, One Time Verification of 28 October 2010

All applicable bulletins issued prior to, and including 206L-10-166, have been incorporated.

TECHNICAL BULLETINS

TB NUMBER SUBJECT DATE

206L-09-238 Spanner Nut P/N MS172244, Inspection of 23 November 2009

The following Technical Bulletins have not been incorporated: 206L-09-239, 206L-09-234, 206L-07-227,206L-07-225, 206L-07-223, 206L-02-207, 206L-00-203, 206L-96-189, 206L-96-187, 206L-95-182, 206L-95-180, and 206L-95-178.

Technical Bulletins issued prior to 1990 are currently being reviewed for incorporation and the BR page willbe updated to reflect this information at a future revision.

1

1

1

1

7 NOV 2012 Rev. 34 BRExport Classification C, ECCN EAR99

BHT-206L1-MM-1

TEMPORARY REVISION RECORD

This Temporary Revision Record provides a current listing of active Temporary Revisions against the manual.Temporary Revisions, which have been canceled/incorporated, will only be maintained on the record until the nextrevision is issued. If there are no Temporary Revisions shown on the record, this is confirmation that there are noTemporary Revisions issued against the manual.

temp. rev. no. TITLE DATE ISSUED DATE CANCELED

NOTE: For tracking purposes, Temporary Revisions are now being numbered (Example: TR-1).

TR Rev. 34 7 NOV 2012 Export Classification C, ECCN EAR99

BHT-206L1-MM-1LIST OF CHAPTERS

Title Chapter

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Airworthiness Limitations Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Dimensions and Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Lifting and Jacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Leveling and Weight and Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Parking, Mooring and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Placards and Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Servicing and Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Equipment/Furnishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Fire Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Flight Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Fuel System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Hydraulic System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Ice and Rain Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Landing Gear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Fuselage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Rotor System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Power Train System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Power Plant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Engine Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 797 NOV 2012 Rev. 34 i/iiExport Classification C, ECCN EAR99

TC APPROVED BHT-206L1-MM-1TABLE OF CONTENTS

Paragraph Chapter/Section Page Number Title Number Number

CHAPTER 4 AIRWORTHINESS LIMITATIONS SCHEDULE

AIRWORTHINESS LIMITATIONS SCHEDULE

4-1 Airworthiness Limitations Schedule ............................................... 4-00-00 5

FIGURES

Figure Page Number Title Number

4-1 Tailboom Upper Left Attachment Fitting (206-032-409-001) Recurring 110-Hour Inspection ...................................................................... 14

TABLES

Table Page Number Title Number

4-1 Airworthiness Limitations Schedule .................................................................... 64-2 Inspection Limitations Schedule ......................................................................... 13

The Airworthiness Limitations Schedule is approved by the Minister and specifies the maintenance required byany applicable airworthiness or operational rules unless an alternative program has been approved by theMinister.

Chief EngineeringAircraft CertificationTransport Canada4-00-007 NOV 2012 Rev. 34 Page 1ECCN EAR99

BHT-206L1-MM-1 TC APPROVEDREVISION NO. DATE OF SIGNATURE APPROVAL SIGNATURE

Original toRev. 15

N/A N/A

16 22 August 1995

17 N/A N/A

18 N/A N/A

19 9 December 2002

20 22 December 2003

21 N/A N/A

22 N/A N/A

23 30 October 20074-00-00Page 2 Rev. 34 7 NOV 2012 ECCN EAR99

TC APPROVED BHT-206L1-MM-124 14 December 2007

25 20 August 2008

26 26 May 2009

27 25 September 2009

28 N/A N/A

29 N/A N/A

30 N/A N/A

31 8 April 2011

REVISION NO. DATE OF SIGNATURE APPROVAL SIGNATURE4-00-007 NOV 2012 Rev. 34 Page 3ECCN EAR99

BHT-206L1-MM-1 TC APPROVED32 29 February 2012

33 1 June 2012

34 7 November 2012

REVISION NO. DATE OF SIGNATURE APPROVAL SIGNATURE4-00-00Page 4 Rev. 34 7 NOV 2012 ECCN EAR99

TC APPROVED BHT-206L1-MM-1AIRWORTHINESS LIMITATIONS SCHEDULE

4-1. AIRWORTHINESS LIMITATIONSSCHEDULE

WARNING

ALL REPAIR AND OVERHAULPROCEDURES PUBLISHED BY BELLHELICOPTER TEXTRON, INCLUDINGCOMPONENT RETIREMENT LIFE, AREBASED SOLELY ON THE USE OF BELLAPPROVED PARTS AND PROCESSES.IF PARTS OR PROCESSES DEVELOPEDOR APPROVED BY PARTIES OTHERTHAN BELL HELICOPTER ARE USED,THEN THE DATA PUBLISHED OROTHERWISE SUPPLIED BY BELLHELICOPTER ARE NOT APPLICABLE.THE USER IS WARNED TO NOT RELYON BELL HELICOPTER DATA FORPARTS AND PROCESSES NOTAPPROVED BY BELL HELICOPTER. ALLAPPLICABLE INSPECTIONS ANDREPAIR METHODS MUST BE OBTAINEDFROM THE SUPPLIER OF THE PARTSOR PROCESSES NOT APPROVED BYBELL HELICOPTER. BELL HELICOPTERIS NOT RESPONSIBLE FOR PARTS ORPROCESSES OTHER THAN THOSEWHICH IT HAS ITSELF DEVELOPED ORAPPROVED.

WARNING

CONTINUED USE OF ANY T IME/CALENDAR/R IN L IFE L IMITEDCOMPONENT PAST ITS STATED LIMITSIS NOT PERMITTED AS IT COULDSERIOUSLY AFFECT THEAIRWORTHINESS OF THE HELICOPTER.

THE COMPONENT MUST BE REMOVEDFROM THE HELICOPTER NOT LATER

THAN THE END OF THE LIFE LIMIT. ITMUST E ITHER BE MADEUNSERVICEABLE OR MARKED IN ACONSPICUOUS MANNER TO PREVENTCONTINUED USE, EVEN INADVERTENTUSE.

WHEN A REPLACEMENT PART ISINSTALLED, THE PART NAME, PARTNUMBER, SERIAL NUMBER, ANDCURRENT OPERATING HOURS, IFAPPLICABLE, MUST BE RECORDED INTHE HISTORICAL SERVICE RECORDFOR THE ASSEMBLY OR HELICOPTER.

NOTE

The requirements stated in Chapter 5 are tobe complied with and the appropriatemaintenance actions are to be performed.

NOTE

The airworthiness life or inspection intervalfor any part number contained in thisschedule applies to all the successive dashnumbers for that component unless it isotherwise specified.

The mandatory Airworthiness Limitations Schedule(Table 4-1) summarizes the mandatory maximum life,in hours, years or by Retirement Index Number (RIN)of components with a limited airworthiness life. Partsthat are not on the schedule have an unlimitedairworthiness life. The Inspection Limitations Schedule(Table 4-2) summarizes the mandatory inspectioninterval in hours.

Refer to the engine manufacturers publications for theairworthiness limitations of the power plantcomponents.4-00-007 NOV 2012 Rev. 34 Page 5ECCN EAR99

BHT-206L1-MM-1 TC APPROVEDWARNING

SOME PARTS ARE INSTALLED ASORIGINAL EQUIPMENT ON BOTHMIL ITARY AND COMMERCIALHELICOPTERS AND MAY HAVE ALOWER AIRWORTHINESS LIFE AND/OROVERHAUL SCHEDULE WHEN USEDON A MIL ITARY HELICOPTER. INADDIT ION, CIRCUMSTANCESSURROUNDING THEIR USE MAY CALLFOR OPERATION OF THE MILITARYHELICOPTER OUTSIDE OF THEAPPROVED COMMERCIAL FLIGHTENVELOPE. CONSEQUENTLY, PARTSTHAT HAVE BEEN USED ON MILITARYHELICOPTERS SHOULD NOT BE USEDON COMMERCIAL HELICOPTERS.

CAUTION

AIRWORTHINESS LIFE OF SOME KITCOMPONENTS IS NOT COVERED INTHIS SCHEDULE. REFER TO

APPLICABLE SERVICE INSTRUCTION(SI ) OR MAINTENANCE MANUALSUPPLEMENT (MMS) FOR K ITCOMPONENT SCHEDULES.

NOTE

The retirement life given, or the failure togive a retirement life to a component, doesnot constitute a warranty of any kind. Theonly warranty applicable to the helicopter orany component is the warranty included inthe Purchase Agreement for the helicopteror the component.

The airworthiness retirement lives given to thecomponents and assemblies are determined byexperience, tests, and the judgment of Bell Helicopterengineers. The retirement lives cannot be changedwithout the approval of the Minister of TransportCanada.

Prior to disposing of unsalvageable helicopter partsand materials, caution should be exercised to ensurethat the parts and material are disposed of in a mannerthat does not allow them to be returned for service.Refer to FAA Advisory Circular 21-38 for guidance onthe disposal of unsalvageable aircraft parts andmaterials.

Table 4-1. Airworthiness Limitations Schedule

COMPONENT PART NUMBER AIRWORTHINESS LIFE

MAIN ROTOR HUB AND BLADES

Main Rotor Yoke 206-011-101-001/-005

Main Rotor Trunnion 206-011-120-001

Main Rotor Trunnion 206-011-120-103/-105 24,000 RIN

Latch Bolt 206-011-122-001/-003

Strap Retention Fitting 206-011-124-001 2400 hours

Strap Retention Pin 206-011-125-001 1200 hours

Main Rotor Grip 206-011-132-009/-113 4800 hours

Tension Torsion Strap 206-011-147-007 1200 hours/24 months

Strap Retention Fitting 206-011-150-101/-105 2400 hours

1

4

6

21 22

3

8

11 124-00-00Page 6 Rev. 34 7 NOV 2012 ECCN EAR99

TC APPROVED BHT-206L1-MM-1MAIN ROTOR HUB AND BLADES (CONT)

Tension Torsion Strap 206-011-154-103/-107 1200 hours/24 months

Latch Bolt 206-011-260-101 1200 hours

Main Rotor Blade 206-015-001-001/-103/-105/-107/-109/-111/-113/-115/-117/

-119/-121

4000 hours

Main Rotor Blade 206-015-001-125/-127/-129/-131 2300 hours

Tension Torsion Strap 206-310-004-103 1200 hours/36 months

SWASHPLATE AND SUPPORT

Lower Cyclic Tube 206-001-193-001 4800 hours

Collective Idler Link 206-010-407-001 4800 hours

Swashplate Support Assembly 206-010-445-113 14,400 hours

Collective Idler Link 206-010-446-105 1200 hours

Collective Idler Link 206-010-446-107 14,400 hours

Collective Lever 206-010-447-105 1200 hours

Collective Lever 206-010-447-109 14,400 hours

Swashplate Support Assembly 206-010-452-001/-005/-109 4800 hours

Swashplate Support Assembly 206-010-452-113 Unlimited

Collective Sleeve Assembly 206-010-454-005 4800 hours

Collective Sleeve Assembly 206-010-454-107/-109/-113 14,400 hours

Collective Lever 206-010-467-001/-105 4800 hours

POWER TRAIN

Tail Rotor Gearbox Duplex Bearing

206-040-410-003/-005/-101 3000 hours

Main Rotor Mast 206-040-535-005 1800 hours/44,000 RIN

Main Rotor Mast 206-040-535-101/-105/-109 5000 hours/44,000 RIN

Sun Gear 206-040-662-101

Freewheel Assembly Clutch CL41742-1 3000 hours

Freewheel Assembly Clutch CL42250-1 3000 hours

Table 4-1. Airworthiness Limitations Schedule (Cont)

COMPONENT PART NUMBER AIRWORTHINESS LIFE1

11

17

13 31 40

31

41

24 39

25 39

26

21 23

9 21 23

144-00-007 NOV 2012 Rev. 34 Page 7ECCN EAR99

BHT-206L1-MM-1 TC APPROVEDTAIL ROTOR HUB AND BLADES

Tail Rotor Yoke 206-011-811-009 4800 hours

Tail Rotor Yoke 206-011-819-101/-105/-109 5000 hours

Tail Rotor Blade 206-016-201-001/-107/-113 2400 hours

Tail Rotor Blade 206-016-201-127/-131/-135 2500 hours

AIRFRAME

Horizontal Stabilizer 206-023-119-167

MISCELLANEOUS KITS

Fixed Floats Landing Gear Aft Crosstube

206-050-169-011/-013

Fixed Floats Landing Gear Forward Crosstube

206-050-169-031

High Landing Gear Crosstube 206-053-109-ALL

Standard Landing Gear Crosstube

206-053-119-ALL

Pan-type Floats Landing Gear Crosstube

206-053-129-009/-011/-101/-103

Fixed Floats Landing Gear Aft Crosstube

206-053-211-103

Emergency Floats Reservoir 1269556-3/-4 15 years

Emergency Floats Reservoir 1271226 15 years

Emergency Floats Reservoir 206-073-916-003 10 years

Emergency Floats Reservoir 206-073-928-101 10 years

Emergency Floats Squib 94455

Emergency Floats Squib 29022968

Hoist Cable Cutter Assembly Y-1265-11-1

POWER PLANT

Turboshaft Engine 250-C28 Refer to Rolls Royce 250-C28 Operation and Maintenance Manual, 16W2



10

15 32

15 16 30 32

37

19

19

18

18

20

27

28

29

36

36

33

34

354-00-00Page 8 Rev. 34 7 NOV 2012 ECCN EAR99

TC APPROVED BHT-206L1-MM-1POWER PLANT (CONT)

Turboshaft Engine 250-C30P Refer to Rolls Royce 250-C30P Operation and Maintenance Manual, 14W2

NOTES:

Airworthiness limitation for part number listed applies to all successive dash numbers for that componentunless otherwise specified.

Reserved.

Main rotor latch bolts 206-011-122-001/-003 will have been removed from service no later than1 September 1978. Refer to ASB 206L-78-2, dated 21 July 1978.

Main rotor yokes 206-011-101-109 and 206-011-149-101/-105 are not listed and are conditional. Mainrotor yokes 206-011-101-001/-005 will have been removed from service no later than 1 September 1981.Refer to ASB 206L-79-5, dated 3 April 1979 and ASB 206L-80-11, dated 1 May 1980.

Reserved.

Main rotor trunnion 206-011-120-001 will have been removed from service no later than1 September 1981. Refer to ASB 206L-80-9 Rev. C, dated 10 August 2001.

Reserved.

Selected serial numbers of main rotor grip 206-011-132-009 will have been removed from service uponreaching 1200 hours in service. Refer to ASB 206L-80-15, dated 29 July 1980 for list of serialnumbers affected.

Selected serial numbers of main rotor mast 206-040-535-105 will have been returned to Bell HelicopterTextron (BHT) for metallurgical evaluation no later than 31 May 1987. Affected masts inspected at BHTand found to be acceptable have the suffix U added to the serial number. Refer to ASB 206L-87-44,dated 23 April 1987 for list of serial numbers affected.

Selected serial numbers of tail rotor yoke 206-011-819-101 will have been returned to Bell HelicopterTextron (BHT) for inspection and rework no later than 1 April 1988. Refer to ASB 206L-88-51, dated23 April 1987 for list of serial numbers affected.

Main rotor hub tension torsion straps 206-011-147 and 206-011-154 have airworthiness lives of1200 hours or 24 months, whichever occurs first. The calendar life of 24 months starts when new strapsare installed in a main rotor hub and blade assembly, and are subjected to rotation on the helicopter. Referto ASB 206L-80-12, dated 2 June 1980.

Selected serial numbers of tension torsion strap 206-011-147-007 must be removed from service. Referto ASB 206L-89-60, dated 29 August 1989 for list of serial numbers affected.

Selected serial numbers of main rotor blades 206-015-001-001/-103/-105 must be removed from service. Refer to ASB 206L-89-64 Rev. A, dated 29 November 1989 for list of serial numbers affected.



38

1

2

3

4

5

6

7

8

9

10

11

12


BHT-206L1-MM-1 TC APPROVEDTable 4-1. Airworthiness Limitations Schedule (Cont)

NOTES (CONT):

Selected serial numbers of sun gear 206-040-662-101 must be removed from service. Refer to ASB 206L-90-69 Rev. A, dated 15 January 1991 for list of serial numbers affected.

Selected serial numbers of tail rotor blades 206-016-201-113/-127 must be removed from service. Refer to ASB 206L-90-70, dated 27 June 1990 for list of serial numbers affected.

Selected serial numbers of tail rotor blade 206-016-201-127 will have been returned to Bell Helicopter Textron (BHT) for evaluation no later than 30 September 1990. Affected blades inspected at BHT and found to be acceptable have the suffix M added to the serial number. Refer to ASB 206L-90-71 Rev. A, dated 31 October 1990 for list of serial numbers affected.

Selected serial numbers of main rotor latch bolt 206-011-260-101 must be removed from service. Refer to ASB 206L-92-86, dated 3 December 1992 for list of serial numbers affected.

Landing gear crosstubes 206-053-109-ALL and 206-053-119-ALL (all dash numbers) will have been removed from service no later than 30 September 1994. Refer to ASB 206L-94-93, dated 11 April 1994.

Landing gear crosstubes 206-050-169-011/-031 will have been removed from service no later than 31 January 1995. Refer to ASB 206L-94-97, dated 17 August 1994.

Landing gear crosstubes 206-053-129-009/-011/-101/-103 will have been removed from service no later than 28 February 1995. Refer to ASB 206L-94-98, dated 29 August 1994.

Each component with a retirement life sensitive to torque events will be assigned a maximum Retirement Index Number (RIN). This RIN corresponds to maximum allowed fatigue damage resulting from lifts and takeoffs. A torque event is defined as a takeoff (one takeoff plus subsequent landing = one RIN) or a lift (internal or external). For example, if an operator performs six takeoffs and 10 slingloads, this would total 16 torque events; (6 takeoffs = 6 events, 10 slingloads = 10 events, 6 + 10 = 16 torque events total).

Pilots are to record total number of torque events for each flight. This allows maintenance personnel to convert torque events to RIN by applying the appropriate RIN adjustment factor. Refer to ASB 206L-94-99 Rev. B, dated 10 August 2001. A new component will begin with an accumulated RIN of zero, that will be increased as lifts and takeoffs are performed. Operator will record number of lifts and takeoffs (torque events), and increase accumulated RIN accordingly. When maximum RIN is reached or retirement flight hours, whichever occurs first, component will be removed from service.

The retirement life of trunnion 206-011-120-103/-105 is based solely on RIN. Retire trunnion whenRIN = 24,000. For each takeoff/lift, add one RIN if the trunnion is installed on 206L, 206L1, or 206L3 (includes 206L3 with Increased Power Operation kit installed per BHT-206-SI-2039) and two RIN if the trunnion is installed on a 206L4 (also applicable to 206L1+ helicopters (Increased Gross Weight Upgrade Kit 206-706-530 installed per BHT-206-SI-2052)). Refer to ASB 206L-94-99 Rev. B, dated 10 August 2001.

Retire main rotor masts 206-040-535-001/-005/-101/-105/-109 when RIN = 44,000. For each takeoff/lift, add one RIN if the mast is installed on 206L, 206L1, or 206L3 (includes 206L3 with Increased Power Operation kit installed per BHT-206-SI-2039) and two RIN if the mast is installed on a 206L4 (also applicable to 206L1+ helicopters (Increased Gross Weight Upgrade Kit 206-706-530 installed per BHT-206-SI-2052)). Refer to ASB 206L-94-99 Rev. B, dated 10 August 2001.

Collective idler link 206-010-446-105, serial numbers A-1 through A-27, inclusively, and serial numbers RE-238 through and including RE-270 will be retired from service at 1200 hours service time. Refer to ASB 206-98-110, dated 6 May 1998.

14

15

16

17

18

19

20

21

22

23


TC APPROVED BHT-206L1-MM-1Collective lever 206-010-447-105, serial numbers A-1 through A-22, inclusively, will be retired from service at 1200 hours service time. Refer to ASB 206L-98-110, dated 6 May 1998.

Swashplate support assemblies 206-010-452-005/-109 must be inspected every 50 hours after the swashplate support has accumulated 1500 hours in service. Refer to ASB 206L-93-89 Rev. B, dated 4 April 1994.

Landing gear aft crosstube 206-053-211-103 has an airworthiness life of 33,000 landings. Refer to ASB 206L-94-97, dated 17 August 1994.

Reservoir per DOT-3HT specification and Exemption Letter DOT-E-7218. Life starts from date of manufacture.

Reservoir per DOT-3HT specification and Exemption Letter DOT-E-8162. Life starts from date of manufacture.

Tail rotor blades 206-016-201-127 and subsequent, retirement life increased to 2500 hours. Refer to TB 206L-89-147, dated 2 June 1989.

Main rotor blades 206-015-001-ALL (all dash numbers). It is permissible to use any main rotor blade (mix and match) on 206L, 206L1, 206L3, and 206L4 provided that all conditions are met. Refer to TB 206L-87-142, dated 1 October 1987, and IL 206L-00-68 Rev. A or subsequent.

Tail rotor blades 206-016-201-ALL (all dash numbers). It is permissible to use any tail rotor blade on 206L, 206L1, 206L3, and 206L4 provided that all conditions are met. Refer to TB 206L-94-167 Rev. A, dated 1 May 1995.

Part of squib assembly 30908. Retire squib no later than 15 years after date of manufacturing. Dispose of time expired squib in accordance with local regulations.

Part of squib assembly 29022971 and approved alternate for squib 30908. Retire squib no later than15 years after date of manufacturing. Dispose of time expired squib in accordance with local regulations.

Storage life of cutter assembly Y-1265-11-1, in original sealed container, is set at 60 months. Service life is 36 months from the time the cutter assembly is removed from the original sealed container. The 36-month service life must be contained within the 60-month storage life. Dispose of time expired squib in accordance with local regulations.

Example 1 Cutter assembly stored for 24 months: 60 - 24 = 36-month service life.Example 2 Cutter assembly stored for 48 months: 60 - 48 = 12-month service life.Example 3 Cutter assembly stored for 1 month: 60 - 1 = 59 months, reduced to 36 months maximum

service life.

Reservoir per FAA specification. Life starts from date of manufacture.

Affected horizontal stabilizer 206-023-119-167 must be removed from service no later than30 September 2008. Refer to ASB 206L-06-141 for list of horizontal stabilizer serial numbers affected. Applicable horizontal stabilizers must be inspected every 600 hours or annually until replaced. Refer to ASB 206L-06-141 for inspection details.

Applicable to Rolls Royce 250-C30P engine when installed in accordance with Engine Upgrade Kit 206-706-520 installed per BHT-206-SI-2050. Also applicable to 206L1+ helicopters (Increased Gross Weight Upgrade Kit 206-706-530 installed per BHT-206-SI-2052).


NOTES (CONT):

25

26

27

28

29

30

31

32

33

34

35

36

37


BHT-206L1-MM-1 TC APPROVEDApplicable to 206L1+ helicopters (Increased Gross Weight Upgrade Kit 206-706-530 installed per BHT-206-SI-2052).

The airworthiness life of 4000 hours is only applicable to main rotor blades not affected by ASB 206L-09-159 Rev. A, dated 13 November 2009, or subsequent. Refer to TCCA AD CF-2011-44 R1, dated 1 February 2012, or subsequent for life applicable to blades affected by ASB 206L-09-159.

Main rotor hub tension torsion straps 206-310-004 have an airworthiness life of 1200 hours or 36 months, whichever occurs first. The calendar life of 36 months starts when new straps are installed in a main rotor hub and blade assembly, and are subjected to rotation on the helicopter.


NOTES (CONT):

39

40


TC APPROVED BHT-206L1-MM-1Table 4-2. Inspection Limitations Schedule

COMPONENT PART NUMBERINSPECTION INTERVAL

(HOURS OPERATION TIME)

Tailboom Upper Left Attachment Fitting

206-032-409-001 110 hours

NOTES:

Inspection limitation for the part number listed applies to all successive dash numbers for that componentunless otherwise specified.

You must do an inspection of the tailboom upper left attachment fitting 206-032-409-001 every 110 flight hours. Refer to ASB 206L-09-158 for a listing of affected tailbooms. Refer to Figure 4-1 forinspection details.

1

2

1


BHT-206L1-MM-1 TC APPROVEDFigure 4-1. Tailboom Upper Left Attachment Fitting (206-032-409-001) Recurring 110-Hour Inspection

206LS_MM_04_0001+_c01

INSPECTION PROCEDURE:

1. Inspect upper left attachment fitting for cracks, mechanical damage, corrosion damage,loose rivets, and general condition.

2. Refer to ASB 206L-09-158 for wear, damage, and repair limits.3. Repair fitting in accordance with ASB 206L-09-158.4. Replace cracked or damaged fitting or loose rivets in accordance with ASB 206L-09-158.5. If a crack is found, contact Product Support Engineering .

(DETAILS OMITTED FOR CLARITY)4-00-00Page 14 Rev. 34 7 NOV 2012 ECCN EAR99

BHT-206L1-MM-1

27-00-0031 OCT 2008 Rev. 24 Page 43

Figure 27-16. Antitorque Bellcrank and Friction Clamp206L1_MM_27_0008

BHT-206L1-MM-1

27-00-00Page 44 Rev. 34 7 NOV 2012 Export Classification C, ECCN EAR99

27-51. ANTITORQUE CONTROL LINKAGE INSTALLATION

1. Install bellcrank (17, Figure 27-12), as follows:

CAUTION

THE NUT USED ON PIVOT BOLT FORBELLCRANK (17) MUST BE A MS17825-4NUT. NO SUBSTITUTION IS ALLOWED.

a. Position bellcrank (17) on support and installbolt with washer under head from bottom side. Installwasher and nut. Torque nut 30 to 40 inch-pounds(3.39 to 4.52 Nm) and install cotter pin.

b. Connect rod assembly (16) to bellcrank (17)with bolt, one washer under head, and one washerunder nut. Torque nut 80 to 100 inch-pounds (9.04 to11.30 Nm) and install cotter pin.

2. Install walking beam (11) using bolt with washerunder head and under nut. Torque nut 95 to 110inch-pounds (10.73 to 12.43 Nm) and install cotter pin.

3. Install walking beam (7) using bolt with washerunder head and under nut. Torque nut 30 to 40inch-pounds (3.39 to 4.52 Nm) and install cotter pins.

4. Install bellcrank (4), as follows:

a. Position floating bushing in support tang withflat side of bushing flange up.

b. Install bellcrank (4) in support using bolt withwasher under head and under nut. Torque nut 30 to 40inch-pounds (3.39 to 4.52 Nm) and install cotter pin.

5. Install bellcrank (13) using bolt with standardwasher under head and large AN970-5 washer undernut against bellcrank. Torque nut 60 to 85 inch-pounds(6.78 to 9.60 Nm) and install cotter pin.

6. Install bellcrank (20), as follows:

a. Install pin (4, Figure 27-16) through antitorquesupport using washers (5 and 6). Install cotter pin tosecure pin.

b. Position clamp (12) and sleeve bearing (11)on bellcrank (1) and install screw (16), washers (17and 14), and nut (13). Do not tighten nut at this time;this will be accomplished during rigging check.

c. Position bellcrank (1) into antitorque supportwith ears on bellcrank around pin (4). Install bolt (3),washer (2), spacer (20), and nut (10). Torque nut 60 to85 inch-pounds (6.78 to 9.60 Nm) and install cotterpin (9).

d. Install bolt (18) with washer (19) under headand washer (15) between clamp (12) and support.Install washer (7) and nut (8). Torque nut 50 to 70inch-pounds (5.65 to 7.91 Nm).

7. Position damper (23, Figure 27-12, Detail F) insupport (24). Install floating bushing (25), bolt with twowashers, and nut. Torque nut 60 to 85 inch-pounds(6.78 to 9.60 Nm) and install cotter pin.

8. Install control tubes (5, 8, 12, 3, 22, or 19), asfollows:

a. Install control tube (12) with adjustable rodend at bellcrank (13). Install control tube (8) withadjustable rod end at walking beam (7).

b. Install bolts with washers next to bellcrank,and spacer next to rod end (Detail A).

c. Torque nuts 30 to 40 inch-pounds (3.39 to4.52 Nm) and install cotter pin.

9. Check antitorque control rigging (paragraph27-42).

27-52. TAIL ROTOR PITCH CHANGEMECHANISM

The tail rotor pitch change mechanism mounts on theright side of the tail rotor gearbox. Movement of theantitorque control system is transmitted through thegearbox to the tail rotor by the pitch changemechanism.

27-53. TAIL ROTOR PITCH CHANGEMECHANISM REMOVAL

1. Remove tail rotor hub and blade assembly(Chapter 65).

NoticePage_Revision206L1-MM-1 Front Matter206L1-MM-4206L1-MM-27 pg 31 to 56

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