ENS 50642: Difference between revisions
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| event date = 11/25/2014 14:21 MST | | event date = 11/25/2014 14:21 MST | ||
| last update date = 11/25/2014 | | last update date = 11/25/2014 | ||
| title = Reactor Console Key Left | | title = Reactor Console Key Left in Control Console Unattended | ||
| event text = On Tuesday, November 25, 2014, a violation of Technical Specification A.1, 'Shutdown,' occurred at the USGS TRIGA research reactor. Contrary to the specification, the key to the console key switch was left in the control console, in the OFF position, while the control room was unoccupied. This condition existed intermittently for approximately nine minutes during the time period from 1421 MST to 1436 MST, when the Reactor Supervisor discovered the key. The reactor was shutdown during this time period, and the staff members were performing routine maintenance. The facility shutdown checklist had been completed, and the key had been locked in a lock box, but the key was subsequently removed from the lock box by a Senior Reactor Operator and put in the console switch for maintenance checks. The reactor was continuously occupied by reactor staff during this event, and there were no non-staff personnel present. This event is being reported to the NRC's facility inspector, NRC Operations Center, the USGS Reactor Administrator, and the USGS Reactor Operations Committee. | | event text = On Tuesday, November 25, 2014, a violation of Technical Specification A.1, 'Shutdown,' occurred at the USGS TRIGA research reactor. Contrary to the specification, the key to the console key switch was left in the control console, in the OFF position, while the control room was unoccupied. This condition existed intermittently for approximately nine minutes during the time period from 1421 MST to 1436 MST, when the Reactor Supervisor discovered the key. The reactor was shutdown during this time period, and the staff members were performing routine maintenance. The facility shutdown checklist had been completed, and the key had been locked in a lock box, but the key was subsequently removed from the lock box by a Senior Reactor Operator and put in the console switch for maintenance checks. The reactor was continuously occupied by reactor staff during this event, and there were no non-staff personnel present. This event is being reported to the NRC's facility inspector, NRC Operations Center, the USGS Reactor Administrator, and the USGS Reactor Operations Committee. | ||
| URL = http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2014/20141126en.html#en50642 | | URL = http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2014/20141126en.html#en50642 | ||
Latest revision as of 21:49, 1 March 2018
| Where | |
|---|---|
| U. S. Geological Survey Denver, Colorado (NRC Region 4) | |
| License number: | R-113 |
| Reporting | |
| Non | |
| Time - Person (Reporting Time:+-4.13 h-0.172 days <br />-0.0246 weeks <br />-0.00566 months <br />) | |
| Opened: | Timothy Debey 17:13 Nov 25, 2014 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Nov 25, 2014 |
| 50642 - NRC Website | |