1、Lessons Learned Entry: 0105Lesson Info:a71 Lesson Number: 0105a71 Lesson Date: 1992-08-17a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: OMS Engine Nozzle Cover Description of Driving Event: During orbiter lift to vertical in the vab transfer isle between high Bays 1 and 2
2、 the right hand OMS engine nozzle cover fell approximately 15 feet to the floor. The cover suffered enough damage to prevent it from being reinstalled. The cover was found to have three holding clamps that were probably defective on installation at the OPF. The left hand cover was inspected and sev
3、eral loose clamps were found and were tightened. Safety gave the ok to continue the lift without the cover.Lesson(s) Learned: Lack of a preventative maintenance program for the OMS engine nozzle covers resulted in a “close call“ when the covers holding clamps failed.Recommendation(s): Evaluate OMS e
4、ngine nozzle cover holding clamps to determine whether redesign or preventative maintenance should be implemented.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Mission
5、 Directorate(s): a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Flight Equipmenta71 Ground Operationsa71 Launch VehicleAdditional 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-,-,-
