NASA-LLIS-0033

Lessons Learned - External Tank (ET) Vent System Withdrawal Weight Securing Device

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T15:49:26Z
date available	2017-09-04T15:49:26Z
date copyright	09/17/1992
date issued	1992
identifier other	QDYCQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/52398
description abstract	Description of Driving Event: The 1500-pound withdrawal weight for the ET LH2 vent line must be raised to access the withdrawal weight shock absorbers to perform maintenance. Personnel work directly beneath the withdrawal weight, held in place with a 125 psi air-operated winch and 5/8" diameter wire rope. The system design does not include a secondary means to secure the weight if the winch or wire rope fails, so workers shore the weights with pieces of wood or other available material that will brace the weights. The improperly used shoring devices could break under the load of the weights, causing injury to personnel.
language	English
title	NASA-LLIS-0033	num
title	Lessons Learned - External Tank (ET) Vent System Withdrawal Weight Securing Device	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	Hardware
subject keywords	Industrial Operations
subject keywords	Launch Process
subject keywords	Launch Vehicle
subject keywords	Lifting Devices
subject keywords	Safety & Mission Assurance