REG NASA-LLIS-0858-2000 Lessons Learned F-18 Drop Model Battery Box Problem.pdf
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REG NASA-LLIS-0858-2000 Lessons Learned F-18 Drop Model Battery Box Problem.pdf
1、Lessons Learned Entry: 0858Lesson Info:a71 Lesson Number: 0858a71 Lesson Date: 2000-02-11a71 Submitting Organization: LARCa71 Submitted by: James L. LeifferSubject: F-18 Drop Model Battery Box Problem Description of Driving Event: A loose metal clip inside of a sealed battery box appeared to cause a
2、 short that caused excessive heat to build in the NiCd batteries and in turn cause additional shorts between the individual cells. These secondary shorts caused a runaway condition that could not be stopped until the battery voltage was drained.Lesson(s) Learned: That all components located in the b
3、attery compartment be inspected prior to sealing the box to ensure no loose clips or any other material is present.Recommendation(s): Conduct final inspection prior to sealing boxes.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): Provided by I
4、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a71 Exploration Systemsa71 Sciencea71 Space Operationsa71 Aeronautics ResearchAdditional Key Phrase(s): a71 Aircrafta71 Flight Operationsa71 Flight Equipmenta71 Ground Equipmenta71 Hardwarea71 Test Articlea71 Test Facilitya71 Test & VerificationAdditional Info: Approval Info: a71 Approval Date: 2000-06-5a71 Approval Name: Eric Raynora71 Approval Organization: QSa71 Approval Phone Number: 202-358-4738Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
