1、Lessons Learned Entry: 0096Lesson Info:a71 Lesson Number: 0096a71 Lesson Date: 1992-08-03a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Lift Operations Utilizing a Hydraset or Dynamometer Description of Driving Event: Replacement of the upper floating beam forward roller
2、support shaft was in progress to eliminate a stress corrosion concern. The 5-ton bridge crane and a sling were being used to lift the Pad B PGHM side 2 upper floating beam Z bar off of the Z roller when a small block with two 5/8“ bolts apparently sheared, allowing Z Bar to travel up, contacting a p
3、ortion of the upper floating beam causing the web strap to be cut.Lesson(s) Learned: Develop procedures that require the use of hydrasets and dynamometers when lifting unknown amounts of weight.Recommendation(s): Review platform extension procedures to ensure verification of ample clearance prior to
4、 extending platforms.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Mission Directorate(s): a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Fac
5、ilitiesa71 Hardwarea71 Lifting DevicesAdditional 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-,-,-
