ENS 55261
ENS Event | |
|---|---|
16:38 May 17, 2021 | |
| Title | Unusual Event Due to a Fire Alarm Inside the Drywell |
| Event Description | [Peach Bottom Atomic Power Station declared an unusual event due to a] "receipt of a single fire alarm in the Unit 2 drywell and the existence of the fire not verified in less than 30 minutes of alarm receipt."
The NRC Resident Inspector and State and Local Authorities were notified. Notified DHS SWO, FEMA Operations Center, CISA Central, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).
At 1355 EDT, the licensee terminated the notification of unusual event. The basis for termination was that the smoke has dissipated and there were no signs of fire. The licensee notified State and Local Authorities and the NRC Resident Inspector. Notified R1DO (Grieves), NRR EO (Miller), and IRD MOC (Grant). Notified DHS SWO, FEMA Operations Center, CISA Central, FEMA NWC (email), DHS Nuclear SSA (email), FEMA NRCC THD (email) and FEMA NRCC SASC (email).
Peach Bottom Atomic Power Station is retracting notification EN 55261, 'Peach Bottom - Unusual Event,' based on the following additional information not available at the time of the notification: Following a Unit 2 drywell inspection, analysis of temperature data, and evaluation of equipment in operation; it was concluded that a fire did not exist. The smoke's most likely apparent cause was the result of heating residual oil/grease in the drywell. Peach Bottom reported the condition and entry into the UE initially based on the available information at the time and to ensure timeliness with emergency declaration and reporting notification requirements. The licensee has notified the NRC Resident Inspector. Notified R1DO (Ferdas). |
| Where | |
|---|---|
Peach Bottom  Pennsylvania (NRC Region 1) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.43 h-0.143 days <br />-0.0204 weeks <br />-0.0047 months <br />) | |
| Opened: | Brett Henry 13:12 May 17, 2021 |
| NRC Officer: | Brian Lin |
| Last Updated: | Jun 8, 2021 |
| 55261 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (40 %) |
| After | Power Operation (40 %) |
WEEKMONTHYEARENS 552612021-05-17T16:38:00017 May 2021 16:38:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Due to a Fire Alarm Inside the Drywell ENS 543402019-10-21T04:50:00021 October 2019 04:50:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to No Control Rod Movement with Manual Scram Actuation ENS 471832011-08-23T18:01:00023 August 2011 18:01:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Notification of Unusual Event Due to Seismic Event ENS 435562007-08-08T19:25:0008 August 2007 19:25:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared to Due Potential Hazardous Atmosphere in a Emergency Diesel Generator Room ENS 431892007-02-27T14:41:00027 February 2007 14:41:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Fire Inside the Unit 3 Turbine Area Load Center ENS 428872006-10-07T22:02:0007 October 2006 22:02:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event - Loss of Containment Integrity ENS 427792006-08-15T22:14:00015 August 2006 22:14:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Due to Fire on Roof of Edg Building ENS 401582003-09-15T06:39:00015 September 2003 06:39:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Dual Unit Reactor Scram. Discretionay Unusual Event Declared 2021-05-17T16:38:00 | |