REG NASA-LLIS-0187-1992 Lessons Learned - Hydrogen Vent Umbilical .pdf
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REG NASA-LLIS-0187-1992 Lessons Learned - Hydrogen Vent Umbilical .pdf
1、Lessons Learned Entry: 0187Lesson Info:a71 Lesson Number: 0187a71 Lesson Date: 1992-10-29a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Hydrogen Vent Umbilical. Description of Driving Event: The ET vent line may not be secured because the deceleration unit latch mechanism
2、 fails to latch. This mechanical malfunction of the latching mechanism, possibly resulting from exposure to exhaust blast from the vehicle could cause the ET vent line to rebound and strike the vehicle.Lesson(s) Learned: Hydrogen vent umbilical deceleration unit latch failure could result in the ven
3、t line rebounding during liftoff and striking the vehicle.Recommendation(s): Design a secondary/redundant latching system that will ensure that the ET GH2 vent line is held secure.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AProvided by IHSNot for ResaleNo reprodu
4、ction or networking permitted without license from IHS-,-,-Mission Directorate(s): N/AAdditional Key Phrase(s): a71 Hardwarea71 Launch ProcessAdditional Info: Approval Info: a71 Approval Date: 1994-06-06a71 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-,-,-
