ENS Event | |
|---|---|
14:20 Jun 2, 2017 | |
| Title | Penetration Room Filtration Boundary Inoperable |
| Event Description | This notification is being made as required by 10 CFR 50.72(b)(3)(v) due to both trains of Penetration Room Filtration [PRF] being inoperable due to an inoperable PRF Boundary. At 0920 [CDT] on 6/2/2017, a gap was discovered between an electrical penetration room ceiling and the containment wall where seismic gap material was noted to be missing. The gap was subsequently closed and PRF testing completed sat. The condition was exited at 1345 [CDT].
The licensee notified the NRC Resident Inspector.
On 6/2/17 at 1707 CDT Farley Nuclear Plant notified the NRC Operations Center of an entry into Technical Specification 3.7.12 Condition B for Unit 1 loss of two trains of Penetration Room Filtration (PRF). At 0920 [CDT] on 6/2/2017, a gap had been discovered between an electrical penetration and containment where seismic gap material was noted to be missing. The report was made pursuant to 10 CFR 50.72(b)(3)(v) under Event Notification 52785. Upon further engineering review and satisfactory testing to support operability, Farley has determined that the configuration did not meet the criteria for a condition that could have prevented fulfillment of a safety function, and is retracting the notification. The NRC Resident Inspector has been notified. Notified R2DO (Blamey). |
| Where | |
|---|---|
Farley  Alabama (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |
| Time - Person (Reporting Time:+2.78 h0.116 days <br />0.0165 weeks <br />0.00381 months <br />) | |
| Opened: | Charles Barefield 17:07 Jun 2, 2017 |
| NRC Officer: | Dong Park |
| Last Updated: | Jul 25, 2017 |
| 52785 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 527852017-06-02T14:20:0002 June 2017 14:20:00
[Table view]10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Penetration Room Filtration Boundary Inoperable ENS 431362007-02-01T00:45:0001 February 2007 00:45:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Potential for Penetration Recirculation Filtration System Overload 2017-06-02T14:20:00 | |