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| Entered date | Event description | |
|---|---|---|
| ENS 49972 | 29 March 2014 14:09:00 | Actuation of RPS with reactor critical. Reactor Scram occurred at 1008 (CDT) on 03/29/2014 from 87% CTP (core thermal power). The cause of the Scram appears to be a Turbine Generator Trip. 05-S-01-EP-2 RPV Control, 05-1-02-I-1 Reactor Scram ONEP and 05-1-02-l-2 Turbine Generator Trip ONEP were entered to mitigate the transient with all systems responding as designed. No loss of offsite or ESF (engineered safety feature) power occurred. No ECCS (emergency core cooling systems) initiation signals were reached and no ESF or Diesel Generator initiations occurred. All control rods are fully inserted. MSIVs (main steam isolation valve) remained open and no SRVs (safety relief valves) lifted. Currently, reactor water level is being maintained by the Condensate and Feedwater system in normal band and reactor pressure is being controlled via Main Turbine Bypass Valves to the main condenser. There are no challenges to Primary or Secondary Containment at this time. The licensee has notified the NRC Resident Inspector. |
| ENS 49647 | 17 December 2013 22:13:00 | During performance of 06-IC-1E31-Q-1016-02 RCIC Steam Supply Pressure Low, the RCIC Containment Isolation Valve 1E51F063, RCIC STM SPLY DRWL INBD ISOL, closed. The procedure for this surveillance (which had recently been revised) should have directed the opening of the breakers for isolation valves 1E51F063 and 1E51F076, RCIC STM LINE WARMUP VLV, which are the division two inboard containment isolation valves for the RCIC system. The procedure incorrectly directed the breakers to be opened for the 1E51F064, RCIC STM SPLY DRWL OTBD ISOL, and 1E51F076. The 1E51F076 is a division two valve and the 1E51F064 is a division one valve. Both the 1E51F076 and 1E51F064 were open at the time their breakers were opened, which resulted in the loss of isolation capability for this containment penetration. The NRC Resident Inspector has been notified. |
| ENS 48316 | 17 September 2012 18:03:00 | Entergy became aware of incorrect information that had been given to the media regarding employees being locked out of the Grand Gulf Nuclear Station. Entergy will be making the following statement: Grand Gulf Nuclear Station Negotiations Update Entergy will continue to negotiate with UGSOA (United Government Security Officers of America) Local 36, representing Grand Gulf security officers, in good faith to bring contract negotiations to a successful closure, and those security officers remain on the job today. The current contract expires at midnight September 30. In keeping with the best interest of safety and maintaining formal organizational controls at the plant site, the company will pursue contingency plans for alternate staffing, consistent with Nuclear Regulatory Commission regulations, as the contract expiration date nears. The licensee has notified the NRC Resident Inspector. |