REG NASA-LLIS-0456-1991 Lessons Learned - High Electrical Current.pdf

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1、Lessons Learned Entry: 0456Lesson Info:a71 Lesson Number: 0456a71 Lesson Date: 1991-05-09a71 Submitting Organization: JSCa71 Submitted by: S. MartinSubject: High Electrical Current Description of Driving Event: Electrical test determined no electrical shorts to case. However, an internal direct shor

2、t was detected. Attempts to restart pump should not be less than 60 seconds elapsed time.Lesson(s) Learned: Circulation pump heated to approximately 240 degrees F with pressure increase in reservior and accumulator.Recommendation(s): Flight procedures must state pump not be operated longer than 60 s

3、econds at a time when no outlet pressure is present.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): N/AProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Additional Key Phrase(s): a71 HardwareAdditional Info: Approval Info: a71 Approval Date: 1996-09-30a71 Approval Name: Ron Montaguea71 Approval Organization: JSC/NA3a71 Approval Phone Number: 281-483-8576Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-