REG NASA-LLIS-0085-1992 Lessons Learned - Lifting Portable Purge Units.pdf
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REG NASA-LLIS-0085-1992 Lessons Learned - Lifting Portable Purge Units.pdf
1、Lessons Learned Entry: 0085Lesson Info:a71 Lesson Number: 0085a71 Lesson Date: 1992-05-08a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Lifting Portable Purge Units Description of Driving Event: The portable purge units are lifted on and off the MLP. The existing lifting
2、sling design induces stress into the units operating components and overstresses the units lift points. Cracks are present on the lifting lug plates and elongation of the lifting lug holes has occurred. Failure of these components could result in damage to ground support equipment (GSE).Lesson(s) Le
3、arned: Lifting portable purge units (PPU) has caused cracks and damage to operating components which result in damage to an orbiter system.Recommendation(s): Redesign lifting sling mechanism to prevent stress from being applied to the PPUs operating components during lifting operations.Evidence of R
4、ecurrence 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(s): a71 Facilitiesa71 Ground Operationsa71 Ground Equipmenta71 Hardwarea71 Lifting DevicesAdditional Info: Approval Info: a71 Approval Date: 1994-06-02a71 Approval Name: James G. Klinea71 Approval Organization: KSC/HEIa71 Approval Phone Number: 407-867-7614Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
