1、Lessons Learned Entry: 0127Lesson Info:a71 Lesson Number: 0127a71 Lesson Date: 1992-08-25a71 Submitting Organization: KSCa71 Submitted by: Lisa L. MusgraveSubject: Orbiter Protection System “Y“ Curtain Wall Retraction Description of Driving Event: During the retraction of the orbiter protection syst
2、em “Y“ curtain wall in the console mode, the speed attained after leaving the slow travel transition is excessive. The operator must manipulate a manual valve to reduce air flow to the winch. High impact stops from the rapid movement of the “Y“ curtain wall during retraction may cause personnel inju
3、ry and/or damage to payloads and facility (PAD).Lesson(s) Learned: Payloads and facility damage and/or personnel injury may occur due to high impact stops of “Y“ curtain wall during retraction.Recommendation(s): Install and utilize a flow control valve in the air winch supply line to permit speed re
4、gulation of the winch in the console mode.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): a71 Space Operationsa71 Exploration SystemsAdditional K
5、ey Phrase(s): a71 Facilitiesa71 Ground Operationsa71 Ground EquipmentAdditional 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-,-,-
