ENS 48837
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ENS Event | |
|---|---|
18:47 Mar 20, 2013 | |
| Title | High Pressure Coolant Injection (Hpci) Turbine Oil Leak |
| Event Description | After securing the Unit 1 HPCI turbine from service following a planned pump, valve, and flow surveillance test an oil leak of approximately 1 pint per minute developed. The oil leak was stopped by securing the auxiliary oil pump for the HPCI system.
There was no loss of oil pressure while the HPCI turbine was operating. This issue has caused the Unit 1 HPCI system to be declared inoperable and unavailable. Per LGS [Limerick Generating Station] Unit 1 Technical Specifications section 3.5.1, the HPCI system must be restored to operable status within 14 days. The cause of the oil leak is being investigated." The licensee notified the NRC Resident Inspector.
UNIT 1 HPCI has been restored to operable status following repairs and post-maintenance testing at 1300 EDT on March 21, 2013. The licensee changed the reporting requirement from 10CFR50.72(b)(3)(ii)(A) to 10CFR50.72(b)(3)(v((D). The licensee will notify the NRC Resident Inspector. Notified R1DO (Trapp). |
| 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 | |
| LER: | 05000352/LER-2013-001 |
| Time - Person (Reporting Time:+2.08 h0.0867 days <br />0.0124 weeks <br />0.00285 months <br />) | |
| Opened: | Thomas Ingram 20:52 Mar 20, 2013 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Mar 21, 2013 |
| 48837 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
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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