27 août 2014
Suite à une opération de maintenance programmée sur le disjoncteur de la pompe d’injection de sécurité n° 11, les opérateurs ont décidé de lancer la pompe n° 12 qui a refusé de démarrer. Ces derniers ont alors restauré la pompe n° 11. La déclaration est réalisée sur la base de la panne d’un système nécessaire à l’atténuation des conséquences liées à la survenue d’un accident.
Type : PWR - Puissance : 3 459 MWth - Première divergence : 12/1976
Available in english only.
Event Number : 50405
Facility : SALEM - State : NJ
Unit : [1] - RX Type : [1] W-4-LP-
Event Date : 08/27/2014 Event Time : 02:48
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION Person (Organization) : KEVIN MANGAN (R1DO)
Initial PWR : 100 % - Current PWR : 100 %
Event Text
SAFETY INJECTION PUMP FAILED TO START
"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.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2014/20140828en.html#en50405