reduce warranty complains in pix 36 ( greenbelt project )

AIS - VADODARA

Reduce Warranty Complains in PIX-36

Action Leader : Sudip Dutta

AIS - VADODARA

I-Nexus ID : 8999

BU/PL/UNIT: 8999

ACTION TITLE:

Business Problem: status before change

Contributing sites:

KINR Sales COI CE SQCDSavings/Benefits 436Implementation CostsNet action impact 435.8on a 12 month basis

Target Date

x x 15.07.09

x x 16.08.09

x x 20.09.09

x x 15.10.09

x x 30.12.09

Action objective: Status after changeTo reduce the warranty complain in PIX-36 from 47% to Y% by 2009 end.

Lever: Process Efficiency iNexus ID:Products/PDS/VAIS

Key Indicator Definition (must be Not Financial) In and out of Scope

The warranty complain in PIX-36 is now 47% of the total dishpatched job till date leading to increase of cost of non quality & customer dissatisfaction.

To reduce the warranty complaints in PIX-36 by 15% from existing 47% 2009 end.

%Warranty Complaints = (Cumulative Number of warranty complaints for 18 months) / Cumulative number of recruitment for 18 months) X 100

In scope: PIX-36 MANUFACTURINGOut of scope: , HVX, HWX,HWX-C,PIX-12

Indicator Baseline: 47.00% Indicator Target: <40%SQCD Impact: Quality, Cost & Delivery

Business Impact Valuation Methodology Validation (by/when/signature)

% warranty cost before & after the project

Finance validation by Debasish Chakraborty

Sponsor: Amol PhatakAction Leader: Sudip Dutta

Milestones Deliverables

Coach (if applicable)R. Karthikeyan/Rajan PothiDMAICMethodology

Team Members: Ugrasena,Ranjit Mallick,Saibal,Subhajit etc

DEFINE

Problem Definition, Project scope, Project Charter, SIPOC, CTQ, Target improvement value, Benefit estimation, Project Owner

MEASUREDetailed process mapping, Data collection, Prioritization, FMEA, Sigma level, Yield

CONTROLStandardization, Fool-proofing, Inspection, Auditing

ANALYSE

Data analysis, Root cause identification & validation Brainstorm on X’s, Identification of X’s affects Y

IMPROVE

Solution identification, Piloting solutions, Risk assessment, Implementation of the improvement action plan.

D M A I C Project Definition Sheet

AIS - VADODARA

PROCESS

PIX-36

MANUFACTURING

PROCESS

SUPPLIER INPUT OUTPUT CUSTOMER

CUSTOMER NEED,

S2K BOM

PRODUCT DETAILS

DESIGN BOM

SAP BOM, DRAWINGS,

MATERIAL REQUIRED

PIX-36 READY PANELS

W/O SHORTAGES

TESTED TAGGED

PANELS

CORE

ENGINEERING

PROCESS

CORE

ENGINEERING

PROCESS

APPLICATION

ENGINEERING

PROCESS

APPLICATION

ENGINEERING

PROCESS

PURCHASE

PROCESS

PURCHASE

PROCESS

PRODUCTION

PROCESS

PRODUCTION

PROCESS

S2K BOM, SAP BOM

TDC/ R&D/COMPETENCY

CENTRE

END CUSTOMER

CORE ENGINEERING

APPLICATION ENGG

APPLICATION ENGG

PURCHASE

PRODUCTION

TESTING , QUALITY

END CUSTOMER

TESTING &

QUALITY CHECK

PROCESS

TESTING &

QUALITY CHECK

PROCESS

PACKING &

DISHPATCH

PROCESS

PACKING &

DISHPATCH

PROCESS

SIPOCD M A I C

AIS - VADODARA

Assembled

PIX 36 Panels

Test Reports

APPLICATION

ENGGINEERING

APPLICATION

ENGGINEERING

CORE

ENGINEERING

PROCESS

CORE

ENGINEERING

PROCESS

PRODUCTION PRODUCTION

QUALITY &

TESTING

CHECKING

QUALITY &

TESTING

CHECKING

LOOSE

MATERIAL

ARRENGEMENT

LOOSE

MATERIAL

ARRENGEMENT

PACKAGING &

TRANSPORT

PROCESS

PACKAGING &

TRANSPORT

PROCESS

Proper Master BOM for

Pix-36 & in all variant.

Proper Master BOM for

Pix-36 & in all variant.

Meet Customer

specifications

Meet Customer

specifications

Quality of productsQuality of products

Faith in incoming

Checked Materials

& final tagging.

Faith in incoming

Checked Materials

& final tagging.

Reliability in arranged

Loose material box

Reliability in arranged

Loose material box

Standard Packaging &

safe transportation.

Standard Packaging &

safe transportation.

No of warranty complains

due to non-availability of

Material in S2K BOM.





due to fault in SAP BOM &

Appl Engg output.



Appl Engg output.


Related to manufacturing

Fault.



Fault.

No of errors in TestingNo of errors in Testing

No of errors in loose

Material arranging


Material arranging


due to packaging &

Transportation process


due to packaging &


REDUCE

WARRANTY

COMPLAIN

IN PIX-36

REDUCE

WARRANTY

COMPLAIN

IN PIX-36

NEED DRIVER CTQ METRICS

VOC TreeD M A I C

AIS - VADODARA

CTQ METRICSCTQ METRICS DEFECT definitionDEFECT definition

Any one or more components

That are missed in S2K BOM

Any one or more components

That are missed in S2K BOM

Any required components that are

Missed in SAP Bom & Engg output.

Any required components that are

Missed in SAP Bom & Engg output.

Any fault remains in the offered

Completed panels for tagging

Any fault remains in the offered

Completed panels for tagging

Any fault remains in inspected

Materials & tagged Panel

Any fault remains in inspected

Materials & tagged Panel

If any loose material component

Missed to put in the BOX

If any loose material component

Missed to put in the BOX

Packaging is not as per AREVA spec

& transportation practice is not good

Packaging is not as per AREVA spec

& transportation practice is not good

Defect Definition of CTQD M A I C

AIS - VADODARA









Appl Engg output.



Appl Engg output.



Fault.



Fault.

No of warranty complaints

due to errors in Testing

No of warranty complaints

due to errors in Testing


Material arranging


Material arranging


due to packaging &



due to packaging &


7 7

MeasureMeasure

AIS - VADODARA

Data Collection PlanD M A I C

TOTAL NO OF DEFECTED(CUSTOMER COMPLAINED) ORDERS DATASHEET

SL NO SO NO PNL QTY CUSTOMERSITE COMPLAINT

RECEIVED SOURCE YEAR MONTH TAG DATE1 3106700638 3106700638/02/01 1 VENKATESH ELECTRICALS YES AEIW 2007 FEBRUARY 01.02.2007

2 3106700638/01/01 1 VENKATESH ELECTRICALS AEIW 2007 FEBRUARY 02.02.2007

3 3106700638/01/02 1 VENKATESH ELECTRICALS AEIW 2007 FEBRUARY 05.02.2007

4 3106700240 3106700240/02/01 1 JOYPRAKASH ASSOCIATES YES AEIW 2007 FEBRUARY 08.02.2007

5 3106700463 3106700463/01/01 1 MARUTI CLEAN COAL & POWER NOT KNOWN AEIW 2007 FEBRUARY 09.02.2006

6 3106700463/01/02 1 MARUTI CLEAN COAL & POWER AEIW 2007 FEBRUARY 09.02.2006

7 3106700463/01/03 1 MARUTI CLEAN COAL & POWER AEIW 2007 FEBRUARY 10.02.2006

8 3106700240 3106700240/03/01 1 JOYPRAKASH ASSOCIATES YES AEIW 2007 FEBRUARY 15.02.2007

9 3106700647 3106700647/01/01 1 POWER & INSTRUMATION LTD YES AEIW 2007 FEBRUARY 27.02.2007

10 3106700616 3106700616/01/02 1 ESSAR CONSTRUCTION LTD YES AEIW 2007 MARCH 22.03.2007

11 3106700616/01/03 1 ESSAR CONSTRUCTION LTD AEIW 2007 MARCH 22.03.2007

12 3106700616/01/04 1 ESSAR CONSTRUCTION LTD AEIW 2007 MARCH 23.03.2007

COLOR INDICATE PNL EXECUTED IN 2007



ALL THE DATAS ARE FOUND AFTER DISSCUSSION WITH Mr. Amit pyne , Mr Amol phatak The Service team-Kotambi & me.

127 3107700221 3107700221/01/01 1 R.R. ISPAT LTD YES AEIW 2008 FEBRUARY 13.02.2008

128 3107700221/01/02 1 R.R. ISPAT LTD AEIW 2008 FEBRUARY 13.02.2008

129 3107700221/01/03 1 R.R. ISPAT LTD AEIW 2008 FEBRUARY 13.02.2008

130 3107700397 3107700397/01/01 1 POWERLINE CABLE YES AEIW 2008 FEBRUARY 14.02.2008

131 3107700397/01/01 1 POWERLINE CABLE AEIW 2008 FEBRUARY 14.02.2008

132 3107700336 3107700336/01/01 1 GOVINRAJ - POWER DRIVE NOT KNOWN AEIW 2008 FEBRUARY 19.02.2008

133 3107700336/01/02 1 GOVINRAJ - POWER DRIVE AEIW 2008 FEBRUARY 19.02.2008




137 3107700484 3107700484/01/01 1 VENKATESH ELECTRICLAS-AAI AURANGABAD YES AEIW 2008 FEBRUARY 22.02.2008

138 3107700470 3107700470/01/01 1 AJITA TRADING NOT KNOWN AEIW 2008 FEBRUARY 28.02.2008

139 3107700470/01/02 1 AJITA TRADING AEIW 2008 FEBRUARY 28.02.2008

140 3107700470/01/03 1 AJITA TRADING AEIW 2008 FEBRUARY 28.02.2008397 3108710001/099/02 1 JSPL AEIW 2009 JANUARY 30.01.2009

398 3108710001/099/03 1 JSPL AEIW 2009 JANUARY 30.01.2009







405 3508701551 3508701551/01/01 1 ATIBIR NOT KNOWN SLW 2009 JANUARY 29.01.2009406 3508701551/01/02 1 ATIBIR SLW 2009 JANUARY 29.01.2009407 3508701551/01/03 1 ATIBIR SLW 2009 JANUARY 29.01.2009

408 3108700138 3108700138/01/01 1 LARSEN & TOUBRO LTD NO VADU 2009 JANUARY 18/01/2009

409 3108700138/01/02 1 LARSEN & TOUBRO LTD VADU 2009 JANUARY 18/01/2009

410 3108700138/01/03 1 LARSEN & TOUBRO LTD VADU 2009 JANUARY 18/01/2009

AIS - VADODARA

Data Collection PlanD M A I C

ORDER WISE COMPLAIN DETAILS DATASHEET

S L CCH S

N O CUS TOMER S OCOMPLAIN

S OURCEDIS P D ATE

COMPLAINDATE COMMEN TS

MATERIALAFFECTED

COMPLAINTYPE

1 SYAD-0003 power & instrumenation 3106700647 CCHS 27.02.2007 18/04/2007 Bkr on-off sticker reversely sticked Breaker Mechanical

2 NDAS-0273 Essar Power limited 3106700616 CCHS22.03.2007

12/07/2007 Rack in-out handle not engaging. Breaker Mechanical


12/07/2007 Shutters are not operating properly Shutter Mechanical


12/07/2007 PNL Interlock are not functioning Interlock Mechanical


12/07/2007 E.Switch aslly disturbed EarthSwitch Mechanical


12/07/2007 Faulty Transducer Transducer Electrical


12/07/2007 Busber sleeve (Raychem) scratched in transit Sleeving Mechanical

8 NDAS-0277

BHUTAN POWER CORPORATION DEVELOPMENT & CONSTRUCTION

DEPT. 3106700281 CCHS 24.08.2007 28/10/2007 BKR stucked in Pnl Breaker Mechanical

9 NDAS-0277


DEPT. 3106700281 CCHS 24.08.2007 28/10/2007 Auxiliary Drive fault Breaker Mechanical

10 NDAS-0277


DEPT. 3106700281 CCHS 24.08.2007 28/10/2007 Energy-meter defective Meter Electrical

11 VSAL-0001 DANCO ENTERPRISES 3107700110 CCHS 22.09.2007 11/10/2007 Emergency push-trip rod not entering Machining Items Mechanical

12 VSAL-0001 DANCO ENTERPRISES 3107700110 CCHS 22.09.2007 11/10/2007 BKR not getting off through rod Breaker Mechanical

13 VSAL-0001 DANCO ENTERPRISES 3107700110 CCHS 22.09.2007 11/10/2007 Control wiring broken LV Wiring Electrical

14 VSAL-0001 DANCO ENTERPRISES 3107700110 CCHS 22.09.2007 11/10/2007 BKR stucked in Pnl Breaker Mechanical

15 PBIJ-0028 larsen & toubro ltd, ecc division , chennai 3107700153 CCHS 30.11.2007 08/01/2008 Front door opening problem Pnl assly Mechanical

FROM DISPATCHED DATE & COMPLAIN RECEIVE DATE, THE CONCLUSION CAME THAT THE ALL

COMPLAINTS ARE WITHIN EITHER 18 MONTH FROM DELIVERY OR 12 MONTH AFTER INSTALLATION .

SO ALL THE CUSTOMER COMPLAIN FOR PIX-36 A/C WAS WARRANTY COMPLAINTS

AIS - VADODARA

10 10

Summary of % Warranty Complaints - BeforeCIAMD

Inferences

Current level of % Warranty Complaints

The Mean warranty complaint % is 47%.

The Warranty Complaints % varies between 42.7% to54.5%

Majority of the values lie between 45.1% and 49.7%.

5550454035

Median

Mean

504948474645

1st Quartile 45.119Median 46.6023rd Quartile 49.765Maximum 54.545

45.437 49.797

45.179 49.432

2.587 5.954

A-Squared 0.47P-Value 0.210

Mean 47.617StDev 3.607Variance 13.011Skew ness 0.841807Kurtosis -0.085621N 13

Minimum 42.727

Anderson-Darling Normality Test

95% Confidence I nterv al for Mean

95% Confidence I nterv al for Median

95% Confidence I nterv al for StDev9 5 % Conf idence I n t er v a ls

Summary for % War ranty complaints = (CumulatStatus = 1 Before

Initial Process Sigma CalculationD M A I C

Determine number of defect opportunities/unit (O)Determine number of defect opportunities/unit (O)

Determine number of unit processed (N)Determine number of unit processed (N)

Determine number of total defected unit (D) Determine number of total defected unit (D)

Calculate defects per opportunities (DPO) Calculate defects per opportunities (DPO)

Calculate Yield Calculate Yield

Look up Sigma in the process sigma table (SIGMA)Look up Sigma in the process sigma table (SIGMA)

Determine Z value from Z bench Determine Z value from Z bench

11

149149

7070

0.469798650.46979865

53.9%53.9%

0.10.1

Dpmo=469798.65

Dpmo=469798.65

HERE UNITS CONSIDERS AS TOTAL NOS OF ORDERS EXECUTED

AIS - VADODARA

1.61.6

12 12

Summary of Measure Phase

Current level of % Warranty Complaints

The Mean warranty complaint % is 47%.

The Warranty Complaints % varies between 42.7% to54.5%

Majority of the values lie between 45.1% and 49.7%.

Warranty complaint process stands at 1.6 sigma

13 13

AnalyzeAnalyze

14 14

Deployment Process FlowD M A I C

AIS - VADODARA

Problem Type

847260483624120

Electrical

Human Negligence

Knowledge Gap

Mechanical

SL

PRO

BLEM

TY

PE

Dotplot of SL of JOB

Count 52 20 9 8Percent 58.4 22.5 10.1 9.0Cum % 58.4 80.9 91.0 100.0

PROBLEM TYPE

Know

ledge

Gap

Human

Neglig

ence

Electr

ical

Mecha

nical

90

80

70

60

50

40

30

20

10

0

100

80

60

40

20

0

Coun

t

Perc

ent

Par eto Char t of PROBLEM TYPE

D M A I C

AIS - VADODARA

Major Defect type to focus are

Mechanical Errors

Electricial Errors

Errors due to Human

Negligence

Count 2 1 1 1 220 7 5 3 3 3 2 2Percent 4 2 2 2 438 13 10 6 6 6 4 4Cum % 90 92 94 96 10038 52 62 67 73 79 83 87

MATERIAL AFFECTEDOthe

r

Interl

ock

Final

taggin

g neg

ligen

ceCTPT

Loos

e mate

rial

Bus P

T

Shutt

er

Other I

tems

Machin

ing Ite

ms

Earth

Swi tc

h

Pnl a

ssly

Break

er

50

40

30

20

10

0

100

80

60

40

20

0

Coun

t

Perc

ent

Par eto Char t of MATERI AL AFFECTED by PROBLEM TYPEPROBLEM TYPE = Mechanical

Count 1 1 1 1 1 13 2 2 2 2 1 1 1Percent 5 5 5 5 5 515 10 10 10 10 5 5 5Cum % 75 80 85 90 95 10015 25 35 45 55 60 65 70


r

Tnc sw

i tch

Relay

Reala

yPTMete

rMCB

Limi t S

witch

Indica

tion L

amp

RealyPT

Power

packCT

LV W

ir ing

50

40

30

20

10

0

100806040200

Coun

t

Perc

ent

Par eto Char t of MATERI AL AFFECTED by PROBLEM TYPEPROBLEM TYPE = Electrical

Material Affected by Problem Type

PROBLEM TYPEPROBLEM TYPE MECHANICALMECHANICAL

MAJOR AFFECTED

MATERIAL

MAJOR AFFECTED

MATERIAL

Breaker,Pnl Assly

Earth Switch

Breaker,Pnl Assly

Earth Switch

PROBLEM TYPEPROBLEM TYPE ELECTRICALELECTRICAL

MAJOR AFFECTED

MATERIAL

MAJOR AFFECTED

MATERIAL

LV Wiring,CT,PT,Relay

Powerpack

LV Wiring,CT,PT,Relay

Powerpack

D M A I C

AIS - VADODARA

Count 4 2 1 1 0Percent 50.0 25.0 12.5 12.5 0.0Cum % 50.0 75.0 87.5 100.0 100.0


r

Busb

er

Bus P

T

Transp

ort Dam

age

Pane

l han

dling

50

40

30

20

10

0

100806040200

Coun

t

Perc

ent

Pareto Char t of MATERI AL AFFECTED by PROBLEM TYPEPROBLEM TYPE = Knowledge Gap

Count 8 1 0Percent 88.9 11.1 0.0Cum % 88.9 100.0 100.0

MATERIAL AFFECTED OtherPackagingLoose material

50

40

30

20

10

0

100806040200

Coun

t

Perc

ent

Pareto Char t of MATERI AL AFFECTED by PROBLEM TYPEPROBLEM TYPE = Human Negligence

Material Affected by Problem Type

PROBLEM TYPEPROBLEM TYPE KNOWLEDGE GAPKNOWLEDGE GAP

MAJOR AFFECTED

MATERIAL

MAJOR AFFECTED

MATERIAL

Pnl Handling

Transport Damage

Pnl Handling

Transport Damage

PROBLEM TYPEPROBLEM TYPE HUMAN NEGLIGENSEHUMAN NEGLIGENSE

MAJOR AFFECTED

MATERIAL

MAJOR AFFECTED

MATERIALLoose MaterialLoose Material

D M A I C

AIS - VADODARA

Count 3 3 3 3 2 2 2 2 1 120 1 1 1 1 1 1 1 1 410 7 5 4 4 3 3Percent 3 3 3 3 2 2 2 2 1 122 1 1 1 1 1 1 1 1 411 8 6 4 4 3 3Cum % 66 6972 76 78 80 82 84 86 8722 88 8990 91 92 93 94 9610033 41 47 51 56 59 62

MATERIAL AFFECTED

Other

Reala

yPT

Pack

aging

Met er

MCB

Limit S

w itch

Limit S

witch

I ndic

ation L

amp

Final t a

gging

neg lig

ence

Busb

er

Tran

spor

t Dam

age

Realy

Powerp

ack

Inter

lock

Shutte

r

Other I t

ems

Machin

ing It

ems

LV W

ir ingCT

Bus P

TPT

Panel

handli

ng

Earth

Switc

h

Pnl ass

ly

Loos

e mate

rial

Brea

ker

908070605040302010

0

100

80

60

40

20

0

Coun

t

Perc

ent

PARETO CHART of MATERI AL AFFECTED

Material Affected

It is clearly visible that the majority of the items affected are Breaker(20%),loose Material(11%),Pnl assly(8%) & EarthSwitch(6%) as these contributes 47 % of total affected material .

AIS - VADODARA

D M A I C

Fishbone – Breaker Issues

BREAKER

ISSUE

BREAKER

ISSUE

MANMANMACHINEMACHINEMATERIALMATERIAL

METHODMETHODMEASUREMENTMEASUREMENTMOTHER NATUREMOTHER NATURE

ELECTRICAL PROBLEM

MECHANICAL PROBLEM

STOPBOLT LENGTH MISHMATCH

INTERLOCKING PIN

CLUTCH WIRE MALFUNCTION

SHUTTER PIN HOLDING

BRACKET MALFUNCTION

POLE CENTERE TO CENTRE

DISTANCE UNEVEN

TEST SERVICE INTERLOCKING LINK

(MVIA00055-01) FAULTY OPERATION

ISOLATING

CONTACT

LOOSE

D M A I C

SECONDARY SOCKET

PIN BROKEN

SECONDARY SOCKET

WIRE MISSING

FAULTY BREAKER

LIMIT SWITCH

AUXILIARY DRIVE

FAULT

TRIPPING CLOSING COIL MISMATCH

QC STICKER NMISSING

RATING STICKER MISSING

TEST & SERVICE STICKER MISSING

ON OFF INDICATION REVERSE

WRONG PROCESS FOR BUS-PT TRUCK INSERTION

BUS PT SURFACE & SHUTTER

PIN RUBBING

BREAKER INSERTION

LACK OF KNOWLEDGE

MISALIGNMENT

WRONG HANDLING AT SITE

NO GUIDELINES AVAILABLE

NO CONTROL OVER

COMMISSIONING PEOPLE

WRONG BRASS BUSS ROLLER CENTER TO CENTRE DISTANCE

IMPROPER SCRAP EARTH SUPPORT SLOT

IMPROPER RACK IN-OUT SLOT ON THE FACIA

PLATE

SITE LOCATION

LAND ALTITUDE

EXPOSURE TO RAIN

SITE CLIMATE CONDITION

FABRICATION

MISTAKE

CONTROLLABLE CAUSE : 22CONTROLLABLE CAUSE : 22

NONCONTROLLABLE CAUSE : 4 NONCONTROLLABLE CAUSE : 4

TOTAL NO OF CAUSE : 26 TOTAL NO OF CAUSE : 26

MECHANICAL

ISSUE A

AIS - VADODARA

Fishbone – Panel Assembly Issues

PANEL ASSLY

ISSUE

PANEL ASSLY

ISSUE



D M A I C

CT CHAMBER EARTHING CAGE NUT FALLING

INSULATOR FIXING CHANEL MVIB00162-01, MVIB00162-02

WRONG POSITION

SHUTTER FOULING WITH SPOUT

BUSBAR CHAMBER TOP BLOW OFF COVER MVIB00112-01 HOLE NOT

MATCH WITH TOP COVER (MVIB00143-01 ) HOLE

BRK GUIDE CHANNELMVIB00059-01/ MVIB00050-02 OPPOSIT BEND

RED-YELLOW SHUTTER POSITION OPPOSITE

IMPROPER LIMIT SWITCH OPERATION

SHUTTER SLIDING BRACKET MVIB00O97-01/98-01 SLOTE

NOTFILED

BAD QUALITY SEMIFINISHED PNL

FROM SUPPLIER END

NO INCOMING INSPECTION FOR PANEL FRO SUB-CONTRACTORS

WORKSHOP CONDITION

BAD UNEVEN FLOOR

NO QUALITY CHECK FROM SUPPLIER END

SIDE SHEET BULGING

IMPROPER GASKETTING

SHORTAGES OF FABRICATION FROM

SUPPLIER END

NO SYSTEMATIC PROCESS

PRODUCTION BOM NOT IN PROCESS

LOOSE TITGHTENING OF FASTENERS

INSULATOR, DROPPER CONN LOSSE ASSEMBLED

INSULATOR, DROPPER CONN LOSSE ASSEMBLED

IMPROPER HARDWARE USED

NO STANDARD HARDWARE LIST

IMPROPER SUPER MARKET ARRENGEMENT (2 BIN)

IMPROPER PANEL ASSLY

LACK OF KNOWLEDGE

WRONG PAINT THICKNESS

BREAKER CHAMBER DOOR PROBLEM

POOR QUALITY BENDING.

IMPROPER PROCESS

Since all causes for the PANEL

ASSLY ISSUES are very minute

so whole panel assly considered

as 1 controllable cause

Since all causes for the PANEL

ASSLY ISSUES are very minute



LV DOOR ISSUE

CT CH DOOR CLOSING PROBLEM

RUST COMES IN PANEL

MECHANICAL

ISSUE B

AIS - VADODARA

Fishbone –Earth Switch Issues

EARTH-SWITCH

ISSUE

EARTH-SWITCH

ISSUE



D M A I C

THE HOLE OF CAM LEVER(MVIB00369-01AND MVIB00350-01) NOT PROPER

THE CAM LEVER(MVIB00350-01) FIXING HOLE AT ESW

ROD(MVIB00356-04) NOT MATCHED.EXTERNAL THREAD OF ESW

INTERLINK MVIB00530-01 AND MVIB00353-01 NOT

PROPER

THE M6 SCREW LENGTH ARE SMALL WHICH IS FIXED

WITH ESW ARMS.THE CAM ASSEMBLY MVIB00350-01 FOULED WITH B/B CHAMBER SIDE SHEET

DURING MOVEMENT BECAUSE THE SLOT OF SIDE SHEET ARE SMALL

EARTHSWITCH INDICATION IMPROPER

NO DESIGN

MVIB00373-01 , MVIB00375-01

ASSEMBLY BROKE

DESIGN ISSUE

LLI INSULATOR WIRING ISSUE

INSULATOR OF LLI EARTH SWITCH HV

FAILED

EARTHSWITCH STICKER MISSING

WRONG TYPE OF EARTH SWITCH

FITTED

CONFUSION BELWEEN LLI & NORMAL EARTHWITCH

WRONG CALL IN BOIM

KNOWLEDGE GAP

WRONG USING AT CUSTOMER END

WRONG HANDLING PROECSS KNOWLEDGE

GAP

IMPROPER MANPOWER

LINK IN S/E EARTH SWITCH FOULING WITH EARTHING

CONN

CONTACT LOOSE

LOOSE FITTING OF BOLT & NUT IN CONTACT

MECHANICAL

ISSUE

Since all causes for the EARTH

SWITCH ISSUES are very minute



Since all causes for the EARTH

SWITCH ISSUES are very minute



C

AIS - VADODARA

Fishbone –LV Wiring Issues

LV WIRING

ISSUE

LV WIRING

ISSUE



D M A I C

DISCONNECTOR TERMINAL BLOCK MISSING

WIRE MISSING,LOOP OPEN

BTB,MTB,DTB & OTHER WIRING PROBLEM

APPL ENGG MISTAKE OPERATOR’S MISTAKE

WIRE MISSING,LOOP OPEN

WRONG FERRULING,LUG

INSRTUMENT STICKER MISSING

WRONG ISSUE OF RELAY/METER/ANNUNCIATOR/MCB ETC

ANNUNCIATOR LABEL MISSING

SECONDARY PLUG WIRE MISSING , WIRE OPEN, WRONG FERRULING, SOCET BROKEN

POOR QUALITY WIRE DRESSING


SWITCH DEFECTIVE

SWITCH LABEL WRONG

APPL ENGG MISTAKE SUPPLIER’S MISTAKE

WRONG COLOR INDICATION LAMP

RELAY POWER SUPPLY CARD BLOWN OUT

LV CHAMBER FABRICATION PROBLEM

SITE LOCATION

LAND ALTITUDE

EXPOSURE TO RAIN


WIRE DUCT COVER OPENED

EARTHING FLEX MISSING

RELAY / METER / ANNUNCIATOR ETC DEFCTIVE

TRANSIT DAMAGE

WRONG PACKAGING

WRONG HANDLINHG IN SITE

NO GUIDELINE AVAILABLE

NO CONTROL OVER SITE PEOPLE

SWITCH HANDLE MISSING

SOFTWARE PROBLEM OF RELAYS

PALLAVARAM ISSUE TESTING ENGG ISSUE

WRONG SETTING OF INSTRUMENTS

CARELESSNESS KNOWLEDGE GAP

INADQUATE TRAINING

CONTROLLABLE CAUSE : 14 CONTROLLABLE CAUSE : 14

NONCONTROLLABLE CAUSE : 14NONCONTROLLABLE CAUSE : 14


ELECTRICAL

ISSUEA

AIS - VADODARA

Fishbone –CT, PT, Meter, Relay, Power pack Issues

CT,PT,METER

RELAY,POWER

PACK ISSUE

CT,PT,METER

RELAY,POWER

PACK ISSUE



D M A I C

PT FUSE MISSING

POWER PACK FUSE MISSING

RELAY,METER LEG MISSING

WRONG RATIO METERS


WRONG PROCUREMENT OF RELAY, METERS

WRONG TYPE

WRONG CALL IN BOMPROCUREMENT WRONG

POOR QUALITY MATERIAL

NO QUALITY CHENK FOR ELECTRICAL MATERIALS

TRANSIT DAMAGE

WRONG PACKAGING

WRONG HANDLINHG IN SITE

NO GUIDELINE AVAILABLE

NO CONTROL OVER SITE PEOPLE

WRONG SETTING OF INSTRUMENTS

KNOWLEDGE GAP

INADQUATE TRAINING

CARELESSNESS

SITE LOCATION

LAND ALTITUDE

EXPOSURE TO RAIN


WRONG LABELING OF MODEL NO

PALLAVARAM ISSUE

RELAY , METER DISPLAY OUT

RELAY CASING, SCREW INSERT BROKEN

TRANSPORT DAMAGEPALLAVARAM QUALITY

ISSUE

ELECTRO MAGNETIC RELAY OPERATING COIL

CT RATIO WRONG

PT RACK IN IMPROPER

CONTROLLABLE CAUSE : 12CONTROLLABLE CAUSE : 12

NONCONTROLLABLE CAUSE : 5 NONCONTROLLABLE CAUSE : 5


ELECTRICAL

ISSUEB

AIS - VADODARA

Fishbone –Earth Switch Issues

LOOSE

MATERIAL

ISSUE

LOOSE

MATERIAL

ISSUE



D M A I C

LOOSE MATERIAL BOX BROKEN

PT RACK IN HANDLE NOT IN THE BOX

SPRING CHARGE HANDLE MISSING

BUS-COUPLER TO BUS-RISER CONN MISSING IN LM

BOX

NOT IN SAP LOOSE MATERIAL BOM

MISMATCH ITEMS IN LM BOX

SHORTAGE OF MATERIAL IN LM BOX

IMPROPER LOOSE MATERIAL BOM

MISMATCH ITEMS IN BOX & THE ITEMS MENTIONED IN

ATTACHED LIST

CARELESSNESS

NO PROPER CROSSCHECK

FAULTY SAP BOM

CONTROLLABLE CAUSE : 10 CONTROLLABLE CAUSE : 10

NONCONTROLLABLE CAUSE : 0NONCONTROLLABLE CAUSE : 0


HUMAN

NEGLIGENSE

A

AIS - VADODARA

Controllable & Non-Controllable Causes D M A I C

Total No of Causes : 83Total No of Causes : 83

Mechanical : 28Mechanical : 28 Electrical : 45Electrical : 45 Loose Material : 10Loose Material : 10

Total No of Controllable Causes : 60Total No of Controllable Causes : 60


Total No of Non-Controllable Causes : 23Total No of Non-Controllable Causes : 23


CONTROLLABLE CAUSES REF DETAILS:CONTROLLABLE CAUSES REF DETAILS:

REF DETAILSM-A Mechanical Issue- BreakerM-B Mechanical Issues- Pnl AsslyM-C Mechanical Issues- Earth Switch

E-A Electrical Issues- LV Wiring

E-BElectrical Issues- CT,PT,Meter,

Relay,Powerpack

HN-AHuman Negligence

Loose material issue

AIS - VADODARA

D M A I C Prioritizations Matrix for Controllable Causes

WEIGHT M-A-1 M-A-2 M-A-3 M-A-4 M-A-5 M-A-6 M-A-7 M-A-8 M-A-9 M-A-10 M-A-11 M-A-12 M-A-13 M-A-14 M-A-15 M-A-16 M-A-17 M-A-18 M-A-19 M-A-20 M-A-21 M-A-22 M-B-1 M-C-1

IMPACT ON ROOT CAUSE 6 4 6 3 6 2 2 3 4 4 5 3 2 7 4 4 6 3 2 2 4 6 9 8 7

FINANCIAL BENEFIT 5 3 7 4 5 3 3 4 4 2 5 1 5 5 6 3 2 4 5 4 3 6 7 7 8

QUALITY OF PRODUCT 4 5 8 2 4 3 7 5 5 5 4 3 7 6 5 2 6 4 3 7 8 6 8 8 5

CUSTOMER SATISFACTION 3 5 5 6 6 4 5 6 7 4 6 6 7 6 4 6 4 6 8 4 6 3 8 6 4

MANAGEMENT ACCEPTANCE 2 4 6 5 4 6 7 7 7 5 4 6 8 9 5 7 4 6 7 9 4 5 6 9 8

SIDE EFFECT ON OTHER CTQ 1 5 3 6 6 6 7 3 5 6 7 8 8 4 6 6 7 7 5 5 5 9 6 6 5

TOTAL 87 133 80 109 69 91 93 104 82 104 73 110 131 102 85 97 91 92 95 102 118 163 157 135

• Top five are : M-A-22 , M-B-1 , M-C-1 , M-A-2 , M-A-13• Electrical :

WEIGHT E-A-1 E-A-2 E-A-3 E-A-4 E-A-5 E-A-6 E-A-7 E-A-8 E-A-9 E-A-10 E-A-11 E-A-12 E-A-13 E-A-14 E-B-1 E-B-2 E-B-3 E-B-4 E-B-5 E-B-6 E-B-7 E-B-8 E-B-9 E-B-10 E-B-11 E-B-12

IMPACT ON ROOT CAUSE 6 4 6 3 6 2 7 3 4 4 5 3 2 7 4 4 6 3 2 8 8 6 8 8 4 6 4

FINANCIAL BENEFIT 5 3 7 4 5 3 5 4 4 2 5 1 5 5 6 3 2 4 5 6 6 6 8 7 8 7 5

QUALITY OF PRODUCT 4 5 8 2 4 3 7 5 5 5 4 3 7 6 5 2 6 4 3 8 8 6 8 0 3 5 5

CUSTOMER SATISFACTION 3 5 0 6 6 4 5 6 7 4 6 6 7 6 4 6 4 6 8 8 8 3 5 6 4 6 6

MANAGEMENT ACCEPTANCE 2 4 0 5 4 6 4 7 7 5 4 6 8 9 5 7 4 6 7 6 6 5 4 0 8 3 5

SIDE EFFECT ON OTHER CTQ 1 5 3 6 6 6 7 3 5 6 7 8 8 4 6 6 7 7 5 5 5 9 6 6 5 5 5

TOTAL 87 106 80 109 69 125 93 104 82 104 73 110 131 102 85 97 91 92 151 151 118 149 107 109 120 102

• Top Six are : E-B-5 , E-B-6 , E-B-8 , E-A-13 , E-A-6 , E-B-11

• Mechanical

• Loose material :WEIGHT HN-A-1 HN-A-2 HN-A-3 HN-A-4 HN-A-5 HN-A-6 HN-A-7 HN-A-8 HN-A-9 HN-A-10

IMPACT ON ROOT CAUSE 6 5 6 3 9 7 5 8 4 4 7

FINANCIAL BENEFIT 5 3 5 4 7 5 5 8 4 2 5

QUALITY OF PRODUCT 4 6 7 2 5 5 7 5 5 5 7

CUSTOMER SATISFACTION 3 5 4 6 9 8 5 7 7 4 5

MANAGEMENT ACCEPTANCE 2 5 3 5 9 6 4 7 7 5 4

SIDE EFFECT ON OTHER CTQ 1 5 3 6 7 6 7 6 5 6 7

TOTAL 99 110 80 161 129 113 149 104 82 125

• Top five are : HN-A-4 , HN-A-7 , HN-A-5 , HN-A-10 , HN-A-6

AIS - VADODARA

27 27

Root-cause Validation D M A I C

AIS - VADODARA

SL CAUSES VALIDATION PLAN METHOD ROOT CAUSE

1 BREAKER INSERTION Warranty Complain No of Warranty Complains happened due to Breaker Inertion YES

2 PANEL ASSLY ISSUE

Warranty Complain&

Gemba InvesticationNo of Warranty Complains happened due to Panel Assly issue& Gemba Investication carried out in POPULAR(Subcontractor) YES

3 EARTH-SWITCH ISSUE Warranty Complain No of Warranty Complains happened due to Earth Switch issues YES

4 ISOLATING CONTACT LOOSE(BKR)

Warranty Complain&

Gemba InvesticationNo of Warranty Complains happened due to loose isolating contact of

breaker & Gemba Investication carried out in Components YES

5 TRIPPING CLOSING COIL MISMATCH (BKR) Warranty Complain No of Warranty Complains happened due to Tripping,Closing Coil mismatch YES

6 PT FUSE MISSING Warranty Complain No of Warranty Complains happened due to PT fuse missing YES

7 POWER PACK FUSE MISSING Warranty Complain No of Warranty Complains happened due to Powerpack fuse missing YES

8 WRONG PROCUREMENT OF RELAY, METERS Warranty Complain No of Warranty Complains happened due to wrong fitted Relay & meters YES

9 POOR QUALITY WIRE DRESSING

Warranty Complain&

Gemba InvesticationNo of Warranty Complains happened due to Improper wire dressing

& Gemba investication carried out in RNG (Wiring Subcontractor) YES

10


Warranty Complain&

Gemba InvesticationNo of Warranty Complains happened due to wrong issue of Realy,meter

& Gemba investication carried out in wiring dept. YES

11 POOR QUALITY MATERIAL

Warranty Complain&

Gemba InvesticationNo of Warranty Complains happened due to Poor qulaity of material

& Gemba investication carried out at Incoming rejections. YES

12 MISMATCH ITEMS IN LM BOX Warranty Complain No of Warranty Complains happened due to Mismatch items in LM BOX YES

13

MISMATCH ITEMS IN BOX & THE ITEMS MENTIONED IN ATTACHED LIST

Warranty ComplainNo of Warranty Complains happened due to mismatch items in lm box &

the items mentioned in attached list. YES

14

BUS-COUPLER TO BUS-RISER CONN MISSING IN LM BOX

Warranty ComplainNo of Warranty Complains happened due to Bus-Coupler to Bus-Riser conn

missing in the LM BOM YES

15 IMPROPER LOOSE MATERIAL BOM Warranty Complain No of Warranty Complains happened due to wrong Loose material BOM. YES

16 SHORTAGE OF MATERIAL IN LM BOX Warranty Complain No of Warranty Complains happened due to shortage of material in LM Box. YES

28 28

ImproveImprove

29 29

Action PlanD M A I C

AIS - VADODARA

SL ROOT CAUSES ACTION PLANCONCERNED

DEPTCONCERNED

PEOPLE TARGET STATUS

PL

AN

DO

CH

EC

K

AC

T

1 BREAKER INSERTION1)Master testing jig to be improved/ A sample pnl can be used for

BKR insertion testing. Component Mr.Rajib Marwa 25.12.09 In progress

2) Start checking & functionality of MVIA0008501,Clutch wire & MVIA00150/151-01 before receiving the Breaker. PIX-36 Manufacturing Sudip Dutta 01.08.09 Done

2 PANEL ASSLY ISSUE1)The slot of the MVIB00012-01(LV Ch) to be increased to

ensure the proper locking of LV BOX.TDC &

Pix-36 ManufacturingMr.Debasish Mahapatra

Sudip Dutta 01.08.09 Done2)Viewing window's position changed in MVIB00236-01

CT ch door to ensure the proper locking.TDC &


Sudip Dutta 01.08.09 Done

3) Three through hole requied to fix bolt in MVIB00029-01,MVIB00027-01,MVIB00196-01to solve the shutter-spout foluing.

TDC & Pix-36 Manufacturing

Mr.Debasish MahapatraSudip Dutta 01.08.09 Done

4) Removal of unwanted teeth in Internal arc angle to protrct TDC &



5) In Reinforcement(left & right)(MVIB000595-01) CSK holes to be implemented for fitment of CSK Rivet.



6) In MVIB00236-01 bottomside 3mm cutting required to ensurethe free movement of CT Ch doors



7) CT access cover & Division plate holes should be alligned tofor proper fitment



8)Long fishplate to be introduced in the end pnl of BD for properearthing fitment.



9) Small size of PIN for shutter sliding bearing to be introducedfor PNL with BUS-PT Truck .


Mr.Debasish MahapatraSudip Dutta 25.12.09 In progress

3 EARTH-SWITCH ISSUE 1) Proper EarthSwitch On-Off indication should be introducedTDC &


Sudip Dutta 25.12.09 In progress2)MVIB00373-01 , MVIB00375-01 Welding required to resist

Stress & stop breaking.TDC &


Sudip Dutta 25.09.09 Done4) Before Closing/tagging panel start physical checking of

Earth-Switch arm & contacts tightness.Pix-36 Manufacturing

& QualitySudip DuttaSubhajit Das 25.09.09 Done

6) The Length of M6 bolt of the arm to be increased.Pix-36 Manufacturing

& Subhada IndSudip Dutta

Mrs. Kalpana 25.12.09 In progress

01 of 02

30 30

Action PlanD M A I C

AIS - VADODARA

02 of 02

4 ISOLATING CONTACT LOOSE(BKR)

1)Start Checking the proper tightening of Isolating Contactat Bkr premises & check Micro-ohm in panel premises

before receiving the Breaker.PIX-36 Manufacturing,

TestingSudip Dutta

Mr. Saibal Boxi 20.07.09 Done

5 TRIPPING CLOSING COIL MISMATCH (BKR) 1) Re-Functional test required after changing of faulty coil Component Mr. Vivek patil 01.12.09 In progress

6 PT FUSE MISSING 1) Before Closing/tagging panel start physical checking.Pix-36 Manufacturing


7 POWER PACK FUSE MISSING 1) Before Closing/tagging panel start physical checking.Pix-36 Manufacturing


8 WRONG PROCUREMENT OF RELAY, METERS1) Start re-checking of ordered relay ,meters (model no,spec)

from Engg Drg of each Job prior to material delivery. PurchaseMr.Satyabreta MannaMs. Darshana patel 30.12.09 In progress

9 POOR QUALITY WIRE DRESSING1) Several Visit require to supplier's end & verify the process

wiring set up,quality of the LV WiringPIX-36 Wiring

Supplier-QualityMr. Naresh Kumar

Subhajit Das 01.07.09 Done

10


1) Separate BOM with Long description of each instruments to be given to all Wiremen(In-house+Out-side) for respectiveLV BOX to visuallly varify all the materials before mounting in

Low Voltage/Instrument chamber PIX-36 WIRING Mr. Naresh Kumar 30.12.09 In progress

11 POOR QUALITY MATERIAL1) Sampling inspection with ordered copy of the Electrical items

to be Started by Incoming InspectionIncomin Inspection

Quality Mr. Indranil Indu 30.12.09 In progress12 MISMATCH ITEMS IN LM BOX 1) Strict Verification required for each & everything items qty. Quality Mr. Indranil Indu Done

13

MISMATCH ITEMS IN BOX & THE ITEMS MENTIONED IN ATTACHED LIST 1) One standard list should be prepared for each varity of panels

board & that list only to be circulated in LM BOX & with invoice. Quality Mr. Indranil Indu 01.11.09 Done

14

BUS-COUPLER TO BUS-RISER CONN MISSING IN LM BOX 1) The Connection should be incorporated in LM Bom of Space 2k

Though we are managing entering it in SAP Lm BOM. PIX-36 Manufacturing Sudip dutta 01.11.09 Done

15 IMPROPER LOOSE MATERIAL BOM 1) Correct Sap bom to be uploaded in Space2k & sap .Core EnggAppl Engg

Mr. Aditya KotaRespective Engg 30.12.09 In progress

16

SHORTAGE OF MATERIAL IN LM BOX

2)1) Strict Verification required for each & everything items qty.Quality

PIX-36 ManufacturingMr.Indranil Indu


31 31

ImprovementsD M A I C

AIS - VADODARA

Gap reduced

BEFORE AFTER

Holes are incorporated in DRG

32 32

D M A I C

AIS - VADODARA

Improvements

BEFORE AFTER

CSK holes required CSK holes added

Create rusting in MVIB00236-01 The teeth was obsoluted in DRG

33 33

Improvement results D M A I C

AIS - VADODARA

2 After1 Before

55

50

45

40

35

St at us

%W

arra

nty

com

plai

nts

= (

Cum

ulat

Boxplot of % War r anty complaints = ( Cumulat

Two-Sample T-Test and CI: %Warranty complaints = (Cumulat, Status

Two-sample T for %Warranty complaints = (Cumulat

Status N Mean StDev SE Mean

1 Before 13 47.62 3.61 1.0

2 After 4 40.46 3.08 1.5

Difference = mu (1 Before) - mu (2 After)

Estimate for difference: 7.16

95% CI for difference: (2.88, 11.43)

T-Test of difference = 0 (vs not =): T-Value = 3.57 P-Value = 0.003 DF = 15

Process Sigma Calculation-(JULY,09-OCT,09)

Determine number of defect opportunities/unit (O)Determine number of defect opportunities/unit (O)

Determine number of unit processed (N)Determine number of unit processed (N)

Determine number of total defected unit (D) Determine number of total defected unit (D)

Calculate defects per opportunities (DPO) Calculate defects per opportunities (DPO)

Calculate Yield Calculate Yield

Look up Sigma in the process sigma table (SIGMA)Look up Sigma in the process sigma table (SIGMA)

Determine Z value from Z bench Determine Z value from Z bench

11

2323

22

0.086956520.08695652

91.2%91.2%

2.92.9

1.41.4

Dpmo=86956.52Dpmo=86956.52

HERE UNITS CONSIDERS AS TOTAL NOS OF ORDERS EXECUTED

AIS - VADODARA

D M A I C

35 35

As per the AREVA Standards we consider the followings,

• Hotel rent allocated for Service people (Non-metro City) : 3000 Rs / day

D M A I C

• Food cost allowable (Non-metro City) : 750 Rs / day

• Avg 1 no of PIX-36 pnl cost : 700 KINR • Avg 1 no of warranty complain attend time: 5 days

DURATION MONTHTOTAL NO

OF PNLNO OF

COMPLAIN SALE (KINR)FREE REPLACEMENT

(KINR)

COST INCURRED BYSERVICE PERSON

(KINR)

TOTAL COST FOR WARRANTY

CLAIM (KINR)

COST OF WARRANTY/MONTH

(KINR)

FEB-07 TO JUNE-09 29 565 69 395500 114.66 1293.75 1408.41 48.56586207

BEFORE

BEFORE• Ticket (AIR/TRAIN) cost is not considered as the places may vary.

DURATION MONTHTOTAL NO

OF PNLNO OF

COMPLAIN SALE (KINR)FREE REPLACEMENT

(KINR)

COST INCURRED BYSERVICE PERSON

(KINR)

TOTAL COST FOR WARRANTY

CLAIM (KINR)

COST OF WARRANTY/MONTH

(KINR)

JULY-09 TO OCTOBER-09 4 158 2 110600 11.49 37.5 48.99 12.2475

AFTER

AFTER

Percentage warranty cost = [{(cost of warranty/month) / (sales/month)} x 100]

= [{(48.57) / (395500/29)} x100]

= 0.36

Percentage warranty cost = [{(cost of warranty/month) / (sales/month)} x 100]

= [{(12.25) / (110600/4)} x100]

= 0.04

SO TOTAL SAVE / ANNUM WILL BE = {(cost of warranty/month BEFORE-cost of warranty/month AFTER) X 12}

={(48.56-12.24) X 12}

= 435.8 KINR

Benefit Calculation

36 36

D M A I C Financial Validation

FINANCIALLY

VALIDATED

The savings due to this project is financially validated

37 37

ControlControl

38 38

Warranty Complaints – Current Status

AIS - VADODARA

D M A I C

1715131197531

55

50

45

40

35

Observat ion

Indi

vidu

al V

alue

_X=40.46

UCL=47.01

LCL=33.92

1 Before 2 After

1

11

I Char t of % War ranty complaints by Status

39 39

D M A I C Process Standardization

Process checklists introduced to control & maintain the improvement

40 40

D M A I C Key learning’s & Further Scope

• Fundamentals of DMAIC Methodology & how to apply the same to improve any kind of process.

• Main Key understanding during this project :

• How important is DATA to evaluate & improve any present process.

• Statistically presentation of any process & evaluate the same .

• Minitab Statistical tool .

• The major points of PIX-36 panels where improvement required .

• Further Scope :

• Next greenbelt can be taken on other products (HWX,PCOB,BREAKER etc)

41 41

Thank youThank you

reduce warranty complains in pix 36 ( greenbelt project )

Career

warranty complainsdue

warranty complainsrelated

changesourcingthe warranty

sap bom engg output

sap bom appl engg output

material requiredpix

nonavailability of material

loose material componentmissed