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 | |
| 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 %) |
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