ENS 50405
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ENS Event | |
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06:48 Aug 27, 2014 | |
Title | Safety Injection Pump Failed to Start |
Event Description | At 0243 [EDT on 8/27/14] the '11' Safety Injection pump breaker was tagged for scheduled maintenance on the 11SJ34, and the control room entered TSAS 3.5.2.b, action 'A' - a 72 hr LCO. The control room recognized the time line for the repair would require filling the '14' SI Accumulator prior to work completion. The CRS [Control Room Supervisor] decided to perform the '14' SI Accumulator makeup prior to commencing work on the 11SJ34, and directed the NCOs [Nuclear Control Operators] to start the '12' SI pump and make up to the '14' SI Accumulator in accordance with procedure SI.OP-SO.SJ-0002. At 0248, TSAS 3.0.3 was entered when the '12' Safety Injection pump failed to start on demand. At 0301, the '11' Safety Injection pump was restored to service and declared operable and TSAS 3.0.3 was exited. TSAS 3.5.2.b, action 'A' remains in effect due to the '12' Safety Injection pump being inoperable.
This event is being reported under the requirements of 10 CFR 50.72(b)(3)(v) as 'Any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of systems that are needed to perform mitigation of the consequences of an accident. Licensee has notified the NRC Resident Inspector. No one was injured as a result of the failure of the '12' Safety Injection pump breaker. The licensee will notify the Lower Alloways Creek Township. |
Where | |
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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:+2.42 h0.101 days <br />0.0144 weeks <br />0.00331 months <br />) | |
Opened: | John Osborne 09:13 Aug 27, 2014 |
NRC Officer: | Daniel Mills |
Last Updated: | Aug 27, 2014 |
50405 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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