Event Notification Report for June 17, 2013

TECHNICAL SPECIFICATION REQUIRED SHUTDOWN DUE TO NON-FUNCTIONAL CLASS 1E ELECTRICAL A/C UNIT

"Class 1E A/C Unit SGK05A cools safety related electrical train 'A' and was declared non-functional at 1111 hours. As a result, the following supported safety related electrical equipment was declared inoperable: 4.16 KV Bus NB01, 480 volt Buses NG01 and NG03, 120 volt Instrument AC Inverters and Buses NN11, NN13, NN01 and NN03, 125 VDC Chargers and Buses NK11, NK13, NK01 and NK03. T/S 3.0.3 was entered from T/S 3.8.7 due to two out of four 120 volt AC Inverters (NN11 and NN13) being inoperable. All electrical systems listed above remain available but are declared inoperable due to inadequate room cooling capability. Plant shutdown to mode 5 commenced at 1125 hours. No major equipment is out-of-service. All systems have functioned normally. Plant is currently at 55% power ramping down. Plant must be in mode 3 by 1811 CDT. No compensatory measures have been established.

"The NRC Resident Inspector has been notified. "

LOSS OF RADWASTE / REACTOR BUILDING VENT GASEOUS EFFLUENT RADIATION MONITORING CAPABILITY

"At 1227 EDT on June 17, 2013, Nine Mile Point Unit 2 determined that the Radwaste / Reactor Building vent gaseous effluent radiation monitor had failed its source check and was, therefore, non-functional.

"This radiation monitor is necessary for accident assessment and is credited for Emergency Action Level (EAL) classification. The inability to classify an EAL due to the out-of-service Radwaste / Reactor Building vent gaseous effluent monitor is considered a loss of emergency assessment capability and is reportable per 10CFR50.72(b)(3)(xiii).

"Troubleshooting is currently in progress. The expected out-of-service time is unknown at this time. Compensatory actions are in place to take and analyze periodic grab samples in accordance with the Offsite Dose Calculation Manual.

"The NRC Resident Inspector has been notified."

* * * UPDATE FROM DANIEL CIFONELLI TO JOHN SHOEMAKER ON 06/20/13 AT 1300 EDT * * *

"The Radwaste/Reactor Building vent gaseous effluent radiation monitor has been repaired and was returned to service at 0330 [EDT] on June 20, 2013, thereby restoring emergency assessment capability.

"The NRC Resident Inspector has been notified"

The licensee will notify the state.

Notified R1DO (Rogge).

AGREEMENT STATE REPORT - STUCK PROCESS GAUGE SHUTTERS

The following information was received from the Kentucky Radiation Health Branch via facsimile:

"Kentucky Radiation Health Branch (RHB) was notified by telephone on 10/2/13 by a representative from a generally licensed facility, Momentive Specialty Chemicals, of the fact that the shutter ON-OFF control mechanisms had been stuck in the open position on two level gauges undergoing routine servicing almost four (4) months previously. The two gauges, Thermo TN Technologies model 7063P each with 100 mCi Cs-137 [sources] (S/N S92BO601 and S94K1101) were being routinely serviced by a licensed manufacturer, VEGA Americas, on June 17, 2013 when the shutters were found to be stuck in the open position. The VEGA service representatives returned to the licensee's two days later (6/19/13) and repaired the sticking shutters so they would operate freely.

"The VEGA representatives informed the general licensee's representative that a report to RHB was required but the person responsible for the gauges and for making the report was not notified of the problem until almost four months later. When he did learn of the event and the reporting requirement, he reported the event to RHB by telephone on 10/2/13 and followed up with a written report on 10/11/13.

"The reporting criteria is defined in 902 KAR 100:050 Section 3(3)(c)5 and 10 CFR 31.5(c)(5)."

AGREEMENT STATE REPORT - EXOTHERMIC REACTION IN SUPERCOMPACTOR ROOM INVOLVING LICENSED MATERIAL

The following historical information was received from the State of Tennessee via email:

"During a routine inspection, it was discovered through review of Toxco Radiological Occurrence Reports that Toxco had an event on June 17, 2013. In the Building A Supercompactor Room, a 55-gallon drum exploded due to an exothermic reaction. The cause was suspected to be the inadvertent packing of nitro-cellulous filters being placed in a waste drum of 3.7 mCi of I-125 contaminated personal protective equipment from Boston Heart Laboratory. The compactor was secured and no indication of radioactive material was discovered in the vicinity beyond the compaction cell. All personnel passed through a personnel contamination monitor without incident. The licensee performed a root-cause analysis determining that Boston Heart Laboratory had packed the nitro-cellulous filters into the waste containers. The licensee isolated two additional 55-gallon drums for return to Boston Heart Laboratory."

State Event ID No.: TN-13-195