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NASA-LLIS-0223
Lessons Learned - Cable Pulley Assemblies
Year: 1993
Abstract: Description of Driving Event:
A counterbalance cable had become disengaged from the upper support beam pulley during assembly operations. This was caused by the work scaffold (used to access the upper beam area) making contact with the counterweight. The tension in the cable was relieved, allowing it to slip from the pulley groove. When the load was reestablished, tension was reapplied to the counterbalance cable, pulling the weight free and allowing it to fall.
A counterbalance cable had become disengaged from the upper support beam pulley during assembly operations. This was caused by the work scaffold (used to access the upper beam area) making contact with the counterweight. The tension in the cable was relieved, allowing it to slip from the pulley groove. When the load was reestablished, tension was reapplied to the counterbalance cable, pulling the weight free and allowing it to fall.
Subject: Ground Equipment
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:25:19Z | |
| date available | 2017-09-04T15:25:19Z | |
| date copyright | 06/18/1993 | |
| date issued | 1993 | |
| identifier other | NKZCQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/25865 | |
| description abstract | Description of Driving Event: A counterbalance cable had become disengaged from the upper support beam pulley during assembly operations. This was caused by the work scaffold (used to access the upper beam area) making contact with the counterweight. The tension in the cable was relieved, allowing it to slip from the pulley groove. When the load was reestablished, tension was reapplied to the counterbalance cable, pulling the weight free and allowing it to fall. | |
| language | English | |
| title | NASA-LLIS-0223 | num |
| title | Lessons Learned - Cable Pulley Assemblies | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1993 | |
| contenttype | fulltext | |
| subject keywords | Ground Equipment | |
| subject keywords | Lifting Devices |