ENS 55000
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ENS Event | |
|---|---|
10:15 Nov 16, 2020 | |
| Title | |
| Event Description | During normal plant start up on Limerick Unit 1, reactor pressure was raised above 200 psig prior to unisolating the Unit 1 high pressure coolant injection system (HPCI) which remained inoperable. Per TS 3.5.1, HPCI is required to be operable in Mode 2 above 200 psig. HPCI has since been restored to operable.
The NRC Resident Inspector has been notified. |
| Where | |
|---|---|
Limerick  Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
| Time - Person (Reporting Time:+1.97 h0.0821 days <br />0.0117 weeks <br />0.0027 months <br />) | |
| Opened: | Rachel Heath 12:13 Nov 16, 2020 |
| NRC Officer: | Andrew Waugh |
| Last Updated: | Nov 24, 2020 |
| 55000 - NRC Website
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Limerick with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
WEEKMONTHYEARENS 561632022-10-14T14:07:00014 October 2022 14:07:00
[Table view]10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection Inoperable ENS 554842021-09-23T18:43:00023 September 2021 18:43:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection System Declared Inoperable ENS 550002020-11-16T10:15:00016 November 2020 10:15:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection Inoperable ENS 533412018-04-17T14:30:00017 April 2018 14:30:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection System Declared Inoperable ENS 531082017-12-08T18:10:0008 December 2017 18:10:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection Inoperable Due to a Leaking Check Valve ENS 528742017-07-27T17:15:00027 July 2017 17:15:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Core Injection System Declared Inoperable ENS 513682015-09-03T23:01:0003 September 2015 23:01:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection (Hpci) Declared Inoperable ENS 492392013-08-05T18:56:0005 August 2013 18:56:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Both Offsite Power Sources Inoperable During Undervoltage Testing ENS 488372013-03-20T18:47:00020 March 2013 18:47:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection (Hpci) Turbine Oil Leak ENS 469792011-06-23T15:00:00023 June 2011 15:00:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection System Declared Inoperable ENS 464742010-12-12T16:28:00012 December 2010 16:28:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection System Unavailable ENS 446232008-11-02T20:50:0002 November 2008 20:50:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Hpci System Declared Inoperable Due to Controller Failure ENS 436452007-09-17T05:49:00017 September 2007 05:49:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Hpci Unable to Perform It'S Safety Related Function ENS 434362007-06-21T07:15:00021 June 2007 07:15:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Hpci Inoperable Due to Quarterly Valve Stroke Test Failure ENS 429072006-10-15T12:46:00015 October 2006 12:46:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Hpci Inoperable ENS 428832006-10-07T10:57:0007 October 2006 10:57:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Hpci Declared Inoperable ENS 415402005-03-28T22:38:00028 March 2005 22:38:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident High Pressure Coolant Injection Temporarily Inoperable ENS 406002004-03-19T19:08:00019 March 2004 19:08:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident Hpci System Declared Inoperable at Limerick 1 Due to a Broken Hand Switch 2022-10-14T14:07:00 | |
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