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NASA-LLIS-0287
Lessons Learned – Magellan Power Control Unit Failure During Test
Year: 1993
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.
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.
Subject: Safety & Mission Assurance
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| 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 |