Event Notification Report for June 07, 2015

NOTICE OF UNUSUAL EVENT FOR SECURITY CONDITION DUE TO NON-HOSTILE ACTION

An individual approached the protected area and grabbed the fence. Local law enforcement assistance has been requested. The Security Team leader does not consider this to be hostile.

An emergency declaration was made based on HU4.1, for a security condition that does not involve a hostile action.

The licensee notified state and local agencies and informed the NRC Resident Inspector.

Notified DHS SWO, FEMA Ops Center, NICC Watch Officer, and FEMA NWC and NuclearSSA via email.

* * * UPDATE STEVE WILSON TO DAN LIVERMORE AT 0649 ON 06/07/2015 * * *

The individual was taken into custody without incident.

Notified R2DO (Rose), NRR EO (Morris), and IRD (GOTT).

Notified DHS SWO, FEMA OPS Center, DHS NICC Watch Officer, and Nuclear SSA via email.

* * * UPDATE AT 1616 EDT ON 6/8/2015 FROM MICHAEL MOORE TO MARK ABRAMOVITZ * * *

"Update to correct description of where the individual was apprehended.

"An individual approached the outside of the administrative fence near the circulating water intake structure. Local law enforcement assistance was requested. The Security Team Leader does not consider this to be hostile.

"This declaration was made based on HU 4.1, a security condition that does not involve Hostile Action.

"The NRC Resident Inspector has been notified."

Notified the R2DO (Rose).

AUTOMATIC REACTOR TRIP RESULTING FROM TURBINE TRIP ON LOW OIL PRESSURE

"On June 7, 2015, at 0735 CDT, the Unit 2 Reactor automatically tripped while operating at 100 percent power due to an automatic Turbine trip due to low bearing oil pressure. The crew entered the reactor trip emergency operating procedure and stabilized the unit in Mode 3 at normal operating pressure and temperature. All control rods fully inserted into the core following the trip. All safety functions operated as designed. The automatic Reactor trip is reportable per 10 CFR 50.72(b)(2)(iv)(B). The Auxiliary Feedwater System actuated to start the Auxiliary Feedwater Pumps as designed on low narrow range Steam Generator level and provided makeup flow to the Steam Generators. The Auxiliary Feedwater actuation is reportable per 10 CFR 50.72(b)(3)(iv)(A). Steam Generator levels have been returned to normal. Auxiliary Feedwater has been secured. Steam Generators are being supplied by [the] 22 Main Feedwater Pump and decay heat is being removed by the condenser steam dump system. The cause of the Turbine trip remains under investigation. There was no effect on Unit 1 as a result of this trip. The health and safety of the public and site personnel were not at risk at any time during this event.

"The NRC Senior Resident Inspector has been notified."

UNUSUAL EVENT - FIRE IN PROTECTED AREA LASTING GREATER THAN 15 MINUTES

At 2359 EDT on June 7, 2015, the Grand Gulf Nuclear Station declared a Notice of Unusual Event in accordance with Emergency Action Level HU4 for a fire in the protected area lasting greater than 15 minutes. The fire started in the wiring of a terminal box for Electro Hydraulic Pump C, the running pump located in the turbine building. The running pump was then deenergized by operators and the standby pump started. The site fire brigade responded and extinguished the fire. The emergency was terminated at 0030 on June 8, 2015.

The licensee notified state and local agencies and will inform the NRC Resident Inspector.

Notified DHS SWO, FEMA Ops Center, NICC Watch Officer, and FEMA NWC and Nuclear SSA via email.

* * * RETRACTION AT 1645 ON 7/9/2015 FROM KEITH HUFF TO MARK ABRAMOVITZ * * *

"The notification of an Unusual Event is being retracted because the event did not meet the definition of 'fire' in NEI 99-01 Revision 5, 'Methodology of the Development of Emergency Action Levels'. The document was endorsed by the NRC on February 22, 2008 (see ADAMS ascension # ML080450149) and is part of the Grand Gulf Nuclear Station's current licensing basis. Per the guidance, a 'fire' is defined as: 'Combustion characterized by heat and light. Sources of smoke such as slipping drive belts or overheated electrical equipment do not constitute as 'fires'. Observation of flame is preferred but is NOT required if large quantities of smoke and heat are observed.'

"According to eyewitness reports from personnel, flames were not observed at any time and evidence of large quantities of heat and smoke were not observed. Additionally, the definition of 'fire' specifically excludes overheated electrical equipment. This information leads to the conclusion that the event did not meet the definition of a 'fire' per NEI 99-01 Revision 5. Therefore, the event is not an immediately reportable Unusual Event under 10 CFR 50.72(a)(1)(i)."

The licensee notified the NRC Resident Inspector and will notify the state and local governments.

Notified the R4DO (Haire) and NRR EO (Morris via e-mail).