1、Lessons Learned Entry: 0112Lesson Info:a71 Lesson Number: 0112a71 Lesson Date: 1992-08-26a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: LH2 Vent Line Valves Description of Driving Event: The LH2 vent system valves are located in the flare stack area of Pads A and B. The v
2、alve control handles are elevated between 8 and 10 feet above ground. Operational personnel are frequently required to climb up on the 12“, 14“, and 18“ vent lines to operate the valves. The use of safety belts/harnesses is not practical in this situation since the tether-off point is not available.
3、 Also, use of a pipe as a work platform is not in keeping with good safety practice.Lesson(s) Learned: The LH2 vent system valves are elevated 8 and 10 feet above ground with no safe access provided.Recommendation(s): Design and install permanent safe access platforms.Evidence of Recurrence Control
4、Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Ground Equipmenta71 Human Factorsa71 Launch Processa71 Safety & Mission AssuranceAdditional 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-,-,-
