REG NASA-LLIS-0323-1993 Lessons Learned - B-nuts Fluid Lines Leakage Inadequate Torque.pdf
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REG NASA-LLIS-0323-1993 Lessons Learned - B-nuts Fluid Lines Leakage Inadequate Torque.pdf
1、Lessons Learned Entry: 0323Lesson Info:a71 Lesson Number: 0323a71 Lesson Date: 1993-06-08a71 Submitting Organization: MSFCa71 Submitted by: Fisher, MarkSubject: B-nuts, Fluid Lines, Leakage, Inadequate Torque Description of Driving Event: Coolant leak developed on the Skylab which was attributed to
2、B-nuts.Lesson(s) Learned: B-nuts are difficult to torque properly and are prone to leakRecommendation(s): Avoid the use of b-nuts in fluid systemsEvidence of Recurrence Control Effectiveness: If B-nuts are not used, there is no B-nut problem. Other methods have been shown to be superiorDocuments Rel
3、ated to Lesson: N/AMission Directorate(s): N/AAdditional Key Phrase(s): Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a71 Flight Equipmenta71 Hardwarea71 Parts Materials & ProcessesAdditional Info: Approval Info: a71 Approval Date: 1993-06-08a71 Approval Name: Fisher, Marka71 Approval Organization: EB22a71 Approval Phone Number: 205-544-9503Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
