NASA-LLIS-0062

Lessons Learned - LRU Platform Hoist and Tube Assembly; Platform Hoist Tube Assembly "UP" Limit Switch Bypass

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T16:18:58Z
date available	2017-09-04T16:18:58Z
date copyright	03/05/1992
date issued	1992
identifier other	TGYCQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/82419
description abstract	Description of Driving Event: Three sections of a telescoping tube assembly at Pad B rotating service structure (RSS) fell while being extended to incorporate a planned modification (MOD). The MOD intended to eliminate binding that had been experienced during testing and verification. The falling tubes impacted and severely damaged the RSS and orbital maneuvering system pod covers. The contributing factor to this failure is that the fillet welds on tube "D" provided an outward ramp effect that caused excessive wear on the keepers and the eventual bowing of tube "C" which allowed less surface contact area between the welded stops and the keepers.
language	English
title	NASA-LLIS-0062	num
title	Lessons Learned - LRU Platform Hoist and Tube Assembly; Platform Hoist Tube Assembly "UP" Limit Switch Bypass	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1992
contenttype	fulltext
subject keywords	Facilities
subject keywords	Ground Equipment
subject keywords	Ground Operations
subject keywords	Lifting Devices
subject keywords	Packaging Handling Storage
subject keywords	Parts Materials & Processes