NASA-LLIS-0295

Lessons Learned – Manufacturing Defects (Burrs) Becoming Loose Particles and Jamming Meshing Parts of Critical Components (Orbiter Hydraulic Pump)

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T16:42:56Z
date available	2017-09-04T16:42:56Z
date copyright	07/29/1993
date issued	1993
identifier other	VSZCQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/106210
description abstract	Description of Driving Event: During the shuttle STS-4 mission, an orbiter (OV-102) hydraulic pump failed. A post flight examination discovered an aluminum particle wedged into one of the high pressure pump gears. The probable source of the particle was determined to be in some drilled oil passages where evidence of burrs were found at the intersection of the holes. The pump manufacturer: 1. Implemented requirements for an inspection of all oil passages prior to assembly. 2. Added a flushing of the pump with clean hydraulic fluid following vibration testing and before continuing further acceptance testing. 3. Reviewed the pump cleaning process.
language	English
title	NASA-LLIS-0295	num
title	Lessons Learned – Manufacturing Defects (Burrs) Becoming Loose Particles and Jamming Meshing Parts of Critical Components (Orbiter Hydraulic Pump)	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1993
contenttype	fulltext
subject keywords	Hardware
subject keywords	Industrial Operations
subject keywords	Parts Materials & Processes