REG NASA-LLIS-0024-1992 Lessons Learned - Hydraset Remote Control Console Pressurized Flexhose.pdf

1、Lessons Learned Entry: 0024Lesson Info:a71 Lesson Number: 0024a71 Lesson Date: 1992-09-04a71 Submitting Organization: KSCa71 Submitted by: Lisa L. MusgraveSubject: Hydraset Remote Control Console Pressurized Flexhose Description of Driving Event: The hydraset control console is a self-contained syst

2、em for the storage, metering, and regulation of compressible GN2. The pneumatic system delivers pressurized GN2 to the accumulator of the hydraset hoist control unit, which controls load movement in small increments. The source for GN2 can be either facility or k-bottle supply. The design of the hyd

3、raset remote control console is such that high GN2 pressure may be present in the flexhose between the k-bottle or facility GN2 supply and the remote control console. Disconnecting the flexhose under pressure may damage equipment and/or injure personnel.Lesson(s) Learned: Disconnecting pressurized f

4、lexhose between k-bottle or facility GN2 supply and hydraset control console may damage equipment and/or injure personnel.Recommendation(s): Update OMI to remove GN2 pressure by opening control valves and verifying pressure on k-bottle or facility supply, prior to disconnecting flexhose.Evidence of

5、Recurrence Control Effectiveness: N/AProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Documents Related to Lesson: N/AMission Directorate(s): a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Facilitiesa71 Ground Equipmenta71 Hardwarea71 Pressure VesselsAdditional Info: Approval Info: a71 Approval Date: 1994-06-01a71 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-,-,-