REG NASA-LLIS-0137-1992 Lessons Learned - Operations and Checkout (O&C) 4-ton Monorail Crane Operations.pdf

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1、Lessons Learned Entry: 0137Lesson Info:a71 Lesson Number: 0137a71 Lesson Date: 1992-09-25a71 Submitting Organization: KSCa71 Submitted by: Lisa L. MusgraveSubject: Operations and Checkout (O&C) 4-ton Monorail Crane Operations Description of Driving Event: The 4-ton monorail crane is used to handle f

2、light related equipment and flight hardware in the operations and checkout building. The crane operator is not able to control the load or terminate all power in an emergency situation because the 4-ton crane lacks required safety devices. The crane operator does not have direct access to the main c

3、ircuit breaker in the event of crane speed control system failure or other hoisting failure. By removing power to the crane, the crane brakes are set and all system movement is halted.Lesson(s) Learned: The 4-ton monorail crane lacks a local emergency power disconnect device which increases potentia

4、l for flight hardware damage or personnel injury.Recommendation(s): Redesign crane control station to include an emergency stop switch to terminate power/set brake should crane speed control system failure occur.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AProvide

5、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Mission Directorate(s): N/AAdditional Key Phrase(s): a71 Ground Operationsa71 Industrial Operationsa71 Lifting DevicesAdditional Info: Approval Info: a71 Approval Date: 1994-06-03a71 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-,-,-