1、Lessons Learned Entry: 0166Lesson Info:a71 Lesson Number: 0166a71 Lesson Date: 1992-10-16a71 Submitting Organization: KSCa71 Submitted by: David PenningtonSubject: Post Launch Blast Cover Removal Description of Driving Event: After every launch, personnel are required to climb out and balance on the
2、 liquid hydrogen external tank vent line to remove blast covers. After launch, the vent line is covered with a mixture of solid rocket booster residue and sound suppression water, thus making it very dangerous to climb on the line to remove blast covers. The location under the vent line is a 20-foot
3、 unprotected drop. Personnel could fall and/or drop the heavy blast shield cover during the installation/removal process.Lesson(s) Learned: A possibility exists for personnel injury while removing blast covers after each launch due to the lack of an access platform to stand on.Recommendation(s): Ins
4、tall access/work platform on LH2 ET vent line at 95-foot level of the fixed service structure to provide a safe means of removing blast covers.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: Provided by IHSNot for ResaleNo reproduction or networking permitted without li
5、cense 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-,-,-
