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NASA-LLIS-0306
Lessons Learned – Galileo/Ulysses Helicoil/Bolt Problems on RTGS
Year: 1993
Abstract: Abstract:
During installation of the Pressure Release Devices (PRD) to the Galileo's RTGs, the four screws anchoring each PRD failed to pull snug to the RTGs. A year later, a screw attaching a PRD to the Ulysses RTG seized and sheared. The problem was attributed to inexperience with the helicoil locking feature. Avoid use of helicoils, and provide detailed assembly procedures for locking devices.
During installation of the Pressure Release Devices (PRD) to the Galileo's RTGs, the four screws anchoring each PRD failed to pull snug to the RTGs. A year later, a screw attaching a PRD to the Ulysses RTG seized and sheared. The problem was attributed to inexperience with the helicoil locking feature. Avoid use of helicoils, and provide detailed assembly procedures for locking devices.
Subject: Hardware
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:39:47Z | |
| date available | 2017-09-04T16:39:47Z | |
| date copyright | 09/15/1993 | |
| date issued | 1993 | |
| identifier other | VMAEQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/103464 | |
| description abstract | Abstract: During installation of the Pressure Release Devices (PRD) to the Galileo's RTGs, the four screws anchoring each PRD failed to pull snug to the RTGs. A year later, a screw attaching a PRD to the Ulysses RTG seized and sheared. The problem was attributed to inexperience with the helicoil locking feature. Avoid use of helicoils, and provide detailed assembly procedures for locking devices. | |
| language | English | |
| title | NASA-LLIS-0306 | num |
| title | Lessons Learned – Galileo/Ulysses Helicoil/Bolt Problems on RTGS | en |
| type | standard | |
| page | 3 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1993 | |
| contenttype | fulltext | |
| subject keywords | Hardware | |
| subject keywords | Parts Materials & Processes |