1、Lessons Learned Entry: 0088Lesson Info:a71 Lesson Number: 0088a71 Lesson Date: 1992-06-17a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Orbiter Weather Protection System Description of Driving Event: Extension of the -Y curtain wall with the -Y strut in any position excep
2、t fully extended, the curtain wall could contact the STS vehicle or the RSS structure. This can result from human error or human error coupled with mechanical failure of the key-lock and interlock valves.Lesson(s) Learned: When the -Y curtain wall is extended with the -Y strut in any position except
3、 fully extended, the wall could contact and damage the STS vehicle.Recommendation(s): Design redundant interlock system to ensure the -Y curtain wall is fully retracted and locked in its support frame prior to moving the -Y strut.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to
4、Lesson: N/AMission Directorate(s): Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Flight Operationsa71 Flight Equipmenta71 Launch Vehiclea71 Packaging Handling StorageAdditional 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-,-,-
