Event Notification Report for November 21, 2013

DIESEL GENERATOR INOPERABILITY

"Following preplanned maintenance on the inoperable 'A' Standby Diesel Generator (SBDG), the operability surveillance (STP-3.8.1-04A Slow Start from Normal Air) was in progress. While securing the 'A' SBDG, the 'B' SBDG control power failure annunciator was received.

"The 'B' Standby Diesel Generator was declared inoperable and Technical Specification 3.8.1.B was entered for the 'B' SBDG. Additionally, Technical Specification 3.8.1.D was entered for two Standby Diesel Generators inoperable. Technical Specification 3.8.1.D allows 2 hours to restore 1 SBDG to operable.

"At 0343 [CST], the 'A' SBDG was restored to operable and Technical Specification 3.8.1.D was exited.

"This condition is reported under 50.72(b)(3)(v)(D), any event or condition at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.

"The NRC Resident Inspector was informed."


* * * RETRACTION FROM BOB MURRELL TO DONALD NORWOOD AT 1348 EDT ON 8/28/2014 * * *

"The purpose of this notification is to retract a previous report made on 11/21/2013 at 1038 EST (EN 49566). Notification of the event to the NRC was initially made as a result of declaring both trains of the Emergency Diesel Generator (EDG) System inoperable due to receiving the 'B' EDG control power failure annunciator while the 'A' EDG was inoperable for pre-planned maintenance.

"Subsequent to the initial report, NextEra Energy Duane Arnold (NextEra) has determined that the 'B' EDG system was capable of performing its safety function and was fully operable, but degraded during the period that the 'A' EDG was inoperable for pre-planned maintenance. The cause of the annunciator was from an open fuse in the control power circuit that affected the annunciator system logic and did not affect the actual EDG control logic.

"This event is not considered a Safety System Functional Failure and is not reportable to the NRC as a Licensee Event Report (LER) per 10 CFR 50.73.

"The NRC Senior Resident Inspector has been notified."

Notified R3DO (Stone).

OFFSITE NOTIFICATION TO NJDEP CONCERNING A SMALL SODIUM HYPOCHLORITE SPILL

"Today, November 21, 2013, at approximately 1737 EST, the New Jersey Department of Environmental Protection [NJDEP] was notified that an indeterminate amount (less than 1 gallon) of sodium hypochlorite was spilled onto the lands of the State of New Jersey. The spill has been contained and cleaned-up. There was no actual or potential impact on the environment and no impact on the health and safety of the public or onsite personnel.

"The spill did not reach the federal reportable quantities limit.

"Due to notification of a government agency, this event is being reported under 10CFR50.72 (b)(2)(xi)."

The licensee informed the NRC Resident Inspector.

LOW CASING COOLING SYSTEM TANK LEVEL POTENTIALLY CAUSES LOSS OF NPSH TO OUTSIDE RECIRCULATION SPRAY PUMPS

"The Casing Cooling system at North Anna Power Station (NAPS) Units 1 and 2 provides cold, borated water to the suction of the Outside Recirculation Spray (ORS) pumps to increase net positive suction head (NPSH) following the initiation of a Containment Depressurization Actuation (CDA). As Casing Cooling tank level decreases to the isolation setpoint, it has been determined that vortexing/air entrainment may occur. This air would then enter the suction of the ORS pumps and potentially cause degradation in design flow and/or loss of NPSH. As a result, this constitutes an event or condition that could have prevented fulfillment of a safety function and is reportable per 50.72(b)(3)(v). A prompt operability determination is in progress that should restore the function of the recirculation spray system.

"The licensee has notified the NRC Resident Inspector."

The licensee will be notifying the Louisa County Administration in the morning.

FITNESS FOR DUTY - BLIND SAMPLE RECOGNITION FAILURE

"On November 21, 2013 during an Access Authorization Fitness for Duty (FFD) Baseline Inspection, an NRC Inspector identified laboratory testing of a Blind FFD sample failed to provide anticipated testing results. Laboratory testing results for sample (specimen number 422136066) should have reported the sample as 'Dilute' but the laboratory report results came back as 'Negative.' In addition, the specific gravity of the sample was also outside the expected range. It should have been reported at or near 1.0015 but was reported at 1.0224 instead. The sample was submitted on March 3, 2013.

"The results error was not identified when the results were received which caused a violation of 10CFR26.

"An investigation with the laboratory has been initiated through the Medical Review Officer for IPEC [Indian Point Energy Center].

"Additionally an investigation with the vendor supplier of the Blind sample will be initiated.

"The corrective action for this event is that an extent of condition is being performed to verify that no other Blind errors exist."

The licensee notified the NRC Resident Inspector and will be notifying New York State Public Service Commission.

AGREEMENT STATE REPORT - HDR BRACHYTHERAPY SOURCE PLACED INCORRECTLY

"Description of incident: HDR brachytherapy treatment of the bronchial, tracheal area. The source was placed incorrectly, resulting in underdose to intended treatment area.

"An additional treatment fraction will be prescribed to compensate for underdose to intended treatment area. Underdose was discovered on 1st of 3 fractions, prior to delivery of 2nd fractions.

"Sequelea: No adverse effects expected as a result of medical event, since the patient is terminally ill.

A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.