1、Lessons Learned Entry: 0538Lesson Info:a71 Lesson Number: 0538a71 Lesson Date: 1996-05-01a71 Submitting Organization: LARCa71 Submitted by: Ruth M. AmundsenSubject: Place Wire Paths, MLI Blankets And Other “Soft“ Items On Assembly Drawings Description of Driving Event: Several wire bundles and MLI b
2、lankets were not explicitly shown in the MIDAS top-level assembly drawing. This made it difficult to assemble the materials list, and also allowed a blanket interference to go unnoticed since the blankets were not shown on the top-level drawing.Lesson(s) Learned: Soft items which do not seem capable
3、 of creating interferences may actually lead to crucial conflicts which are only caught in assembly or testing because they were not shown on assembly drawings.Recommendation(s): Always indicate wire paths and MLI blankets on top-level assembly drawings and anywhere else appropriate, to help identif
4、y potential interference and obstruction problems before assembly starts.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N/AAdditional Key Phrase
5、(s): a71 Configuration Managementa71 Flight Equipmenta71 HardwareAdditional Info: Approval Info: a71 Approval Date: 1997-05-03a71 Approval Name: Elijah C. Kenta71 Approval Organization: 421a71 Approval Phone Number: 757-864-3345Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
