NASA-LLIS-0287

Lessons Learned – Magellan Power Control Unit Failure During Test

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T18:19:23Z
date available	2017-09-04T18:19:23Z
date copyright	07/13/1993
date issued	1993
identifier other	HTZCQCAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/202108
description abstract	Abstract: Following rework of the Magellan Power Control Unit (PCU), an engineer performed an after-hours test of the unit without quality assurance assistance or adequate test procedures. Reverse polarity voltage was applied to electronic circuitry within the unit, causing blown fuses and potential damage to electronic parts. Test or retest of flight hardware should always be performed with adequate personnel in attendance, with QA surveillance, and with approved test procedures. Prior to tests, review the use of test instrumentation to verify the proper configuration and precautions.
language	English
title	NASA-LLIS-0287	num
title	Lessons Learned – Magellan Power Control Unit Failure During Test	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1993
contenttype	fulltext
subject keywords	Safety & Mission Assurance
subject keywords	Subsystem Test
subject keywords	Test & Verification