GLAST Large Area Telescope:

Manufacturing Preparation

Design Engineering Meeting

Jerry Clinton

1 April 2003Stanford Linear Accelerator CenterStanford, CA

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Procurement Process Flow

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Manufacturing RequirementsDrawings and specifications must be releasedParts and materials must be listed on PIL and must be approved by PCB or MPRB as appropriateAll parts and materials must be issued from flight storesCompleted flight assemblies must be kept in flight stores Work must be authorized via an approved Assembly and Inspection Data Sheet (AIDS)

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Manufacturing ProcessClosed loopParts and materials issued in kits from storesKit is assembled, tested, and inspectedDelivery of assembled kit to stores closes the loopMaintains clear traceability of parts, materials, and finished flight itemsApproved AIDS is required to start the processApplies to fabrication, assembly, test, and inspectionDoes not apply to fabrication where supplier procures raw materialsIf work is to be performed by a subcontractor, their travelers should be attached, or PO should require supplier to make them available for review by SLAC and Government personnel

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Manufacturing Process - ContinuedStock room verifies item is ready for manufacturing prior to pulling kitDrawings and/or specifications releasedTest procedures releasedParts approvedCompleted AIDS ends the processLast step is to deliver to stores

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Assembly and Inspection Data SheetsAIDSs are LAT work ordersAuthorize taking parts and materials out of stores and performing work to manufacture flight hardwareDefines operations executed to fabricate, assemble, and test LAT hardware itemsProvide traceability from raw materials to finished flight itemsRequired for all LAT manufacturing activities including outside fabrication and assemblyLAT-MD-01624AIDS preparation instructionsProvides some guidelines on work instruction preparationAccessed from Quality Assurance web page

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AIDS List Screen

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AIDS Entry Screen (Top Portion)

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AIDS Entry Screen (Bottom Portion)

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Check Screen

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AIDS List with New Record

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Report Screen

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Update Screen

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Updated Report Screen

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