1、Lessons Learned Entry: 0164Lesson Info:a71 Lesson Number: 0164a71 Lesson Date: 1992-10-15a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Handrails on the OPF Bridge Buckets. Description of Driving Event: Non-collapsible handrails are in place on the OPF buckets. When the O
2、PF bucket (platform) is raised to the full up position, the hand rails stress, creating the potential for structural failure. The handrails must meet a 200 pound load requirement in any direction, collapse to prevent system damage (approximately 100 pounds), and must be contained so as not to fall i
3、nto the orbiter P/L bay.Lesson(s) Learned: Non-collapsible handrails on the OPF buckets in HB-1 are stressed when raised to full up position, creating a potential for damage or falling.Recommendation(s): Redesign handrails to meet the original 200 pound load requirement in any direction and to be co
4、llapsible to prevent damage.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N/AMission Directorate(s): N/AAdditional Key Phrase(s): a71 Facilitiesa71 Ground OperationsAdditional Info: Approval Info: a71 Approval Date: 1994-06-06a71 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-,-,-
