REG NASA-LLIS-0061-1992 Lessons Learned - Crane Load Cell System.pdf

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1、Lessons Learned Entry: 0061Lesson Info:a71 Lesson Number: 0061a71 Lesson Date: 1992-03-02a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Crane Load Cell System Description of Driving Event: On November 8, 1985, the forward center segment of a solid rocket motor (SRM) was d

2、amaged during forward handling ring removal operations. During the operation leading to this incident, the crane operator was attempting to raise the hook until a load of 11,000 pounds was attained, but the load cell read zero until the segmented ring fractured and the crane was stopped. The load ce

3、ll system was provided with the crane, but the requirement for its usage is not clear. Loadcell usage is not mentioned in the crane OMRSD nor is it mentioned in the system assurance analysis (SAA).Lesson(s) Learned: Failure of a crane load cell system during lifting operations contributed to the dam

4、age of a solid rocket motor segment.Recommendation(s): Institute/write procedures for the operation, maintenance, and calibration of load cell usage.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AProvided by IHSNot for ResaleNo reproduction or networking permitted w

5、ithout license from IHS-,-,-Mission Directorate(s): a71 Exploration Systemsa71 Sciencea71 Space Operationsa71 Aeronautics ResearchAdditional Key Phrase(s): a71 Facilitiesa71 Ground Equipmenta71 Hardwarea71 Launch Processa71 Lifting Devicesa71 Packaging Handling StorageAdditional 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-,-,-