ENS 55480: Difference between revisions
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| event date = 07/20/2021 14:01 MDT | | event date = 07/20/2021 14:01 MDT | ||
| last update date = 11/08/2021 | | last update date = 11/08/2021 | ||
| title = | | title = CAAS Alarm Not Clearly Audible | ||
| event text = During routine Criticality Accident Alarm System (CAAS) maintenance on July 20, 2021, UUSA [(URENCO USA)] staff identified an area in which the CAAS alarm was not clearly audible. The alarm was (and is) functioning, but not at an adequate level of sound pressure to meet the acceptance criteria. UUSA arranged compensatory measures which achieve an equivalent safety function within 24 hours in the affected area. The affected area was in the Immediate Evacuation Zone (IEZ), outside of the area in which licensed special nuclear material is handled, used, or stored. | | event text = During routine Criticality Accident Alarm System (CAAS) maintenance on July 20, 2021, UUSA [(URENCO USA)] staff identified an area in which the CAAS alarm was not clearly audible. The alarm was (and is) functioning, but not at an adequate level of sound pressure to meet the acceptance criteria. UUSA arranged compensatory measures which achieve an equivalent safety function within 24 hours in the affected area. The affected area was in the Immediate Evacuation Zone (IEZ), outside of the area in which licensed special nuclear material is handled, used, or stored. | ||
On September 16, 2021, an NRC inspector conducting an onsite inspection informed UUSA staff that given the potential that the alarm had not been clearly audible for a period of time between surveillances, this event should have been reported within 24 hours to the NRC in accordance with 10 CFR 70.50(b)(2) in which equipment is disabled or fails to function as designed when required by regulation (10 CFR 70.24). | On September 16, 2021, an NRC inspector conducting an onsite inspection informed UUSA staff that given the potential that the alarm had not been clearly audible for a period of time between surveillances, this event should have been reported within 24 hours to the NRC in accordance with 10 CFR 70.50(b)(2) in which equipment is disabled or fails to function as designed when required by regulation (10 CFR 70.24). | ||
Latest revision as of 16:03, 4 January 2024
| Where | |
|---|---|
| Louisiana Energy Services Eunice, New Mexico (NRC Region 2) | |
| License number: | SNM-2010 |
| Reporting | |
| 10 CFR 70.50(b)(2) | |
| Time - Person (Reporting Time:+1412.9 h58.871 days <br />8.41 weeks <br />1.935 months <br />) | |
| Opened: | Blake Bixenman 16:55 Sep 17, 2021 |
| NRC Officer: | Ossy Font |
| Last Updated: | Nov 8, 2021 |
| 55480 - NRC Website | |