ENS 41525
ENS Event | |
|---|---|
01:15 Mar 25, 2005 | |
| Title | Reactor Coolant Leakage Outside Containment Exceeding Design Basis |
| Event Description | The following information was obtained from the licensee via facsimile (licensee text in quotes):
This is an 8-hour notification being made to report exceeding the design basis for the reactor coolant leakage outside of containment. The event is being reported under paragraph (b)(3)(v) of 10CFR50.72. An event or condition that could have prevented mitigating the consequences of an accident. On 03/24/05 at 2015 operators discovered that a closed manual discharge valve for the positive displacement charging pump was leaking through allowing Reactor Coolant System to leak back to the refueling water storage tank. The leakage was 0.34 gallons per minute. This leakage is greater than the UFSAR limit for ECCS leakage outside containment. With leakage greater than the UFSAR allowed limits (greater than 3800 cc/hr), GDC-19 limits for control room habitability cannot be assured. Actions were taken and the leakage was stopped at 2040. The affected positive displacement charging pump is not a safety related pump and is not required for accident mitigation; however it is in the ECCS recirculation flow path during the cold leg injection phase of the accident mitigation. The licensee will notify the NRC Resident Inspector of this event. The licensee will be notifying local authorities. The licensee reported that the event had no impact on Unit 1. |
| Where | |
|---|---|
Salem  New Jersey (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:+0.63 h0.0263 days <br />0.00375 weeks <br />8.62974e-4 months <br />) | |
| Opened: | Richard Desanctis 01:53 Mar 25, 2005 |
| NRC Officer: | Wesley Held |
| Last Updated: | Mar 25, 2005 |
| 41525 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |