NASA-LLIS-0009

Lessons Learned - Lubricant Particles Clogging Spacecraft System Filters

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T17:14:34Z
date available	2017-09-04T17:14:34Z
date copyright	06/14/1991
date issued	1991
identifier other	ZAYCQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/137993
description abstract	Description of Driving Event: Low flow rates were observed in the shuttle orbiter freon coolant loops when the temperatures in the radiator panels dropped below minus 60 degrees Farenheit during a mission. An investigation of the problem revealed that the system filters were clogged with teflon particles. The origin of the particles was traced to the krytox fluoropolymer thread lubricant grease used during loop assembly. Corrective actions were taken to remove, clean, and replace the system filters, several valves, a flow proportioning module, and a pump assembly.
language	English
title	NASA-LLIS-0009	num
title	Lessons Learned - Lubricant Particles Clogging Spacecraft System Filters	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1991
contenttype	fulltext
subject keywords	Flight Equipment
subject keywords	Launch Vehicle
subject keywords	Parts Materials & Processes