Event Notification Report for January 23, 2012

TECHNICAL SUPPORT CENTER OUT OF SERVICE DUE TO PLANNED MAINTENANCE

"On January 23, 2012 at 0633 hours, planned routine preventive maintenance was initiated on the Technical Support Center/Operations Support Center (TSC/OSC) diesel generator. The planned maintenance includes fluid and filter replacements, damper inspections and cleaning and is scheduled to be complete on January 26, at 1500 hours. The normal TSC/OSC power supply and all other TSC/OSC functions remain available. During certain periods of the preventive maintenance the diesel generator would not be capable of being restored to service within one hour.

"Under certain accident conditions the TSC/OSC may become unavailable as a result of the diesel generator not being available. Existing Emergency Procedures direct the responsible Emergency Plant Manager to relocate the TSC/OSC staff to the designated alternate location (EOF or main control room) as required. The affected Emergency Response Organization facility leads have been informed.

"The USNRC Resident Inspector Staff has been notified.

"This notification to the USNRC Operations Center is being made in accordance with 10 CFR 50.72 (b)(3)(xiii) due to the potential loss of an Emergency Response Facility (ERF)."

The licensee plans to notify the Commonwealth of Massachusetts.

UNSUAL EVENT DECLARED DUE TO FIRE INSIDE CONTAINMENT LASTING > 15 MINUTES

At 1804 EST on 01/23/12, Unit 2 declared an Unusual Event due to an electrical fire in the control cabinet on the Polar Crane. The fire brigade responded, de-energized the equipment and confirmed that the fire was extinguished. There were no injuries as a result of this incident.

At 1837 EST, the license terminated the Unusual Event classification.

Unit 2 is currently in mode 5 (Cold Shutdown) for a Refueling Outage.

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

BREACH IN HIGH ENERGY LINE BREAK BARRIER

"At 1300 EST on 1/23/12, it was determined that an unanalyzed condition existed for the Unit 1 Cable Spreading Room. A high energy line break (HELB) barrier issue was discovered while performing a HELB inspection and the condition is believed to have existed from initial plant construction. A HELB barrier was found to have a breach in it that could allow steam from a high energy line break in the Unit 1 Turbine Building [into the cable spreading room and thus into the control room]. The Control Room is not analyzed for a steam environment. The degree of the impact could not be readily determined, but could likely affect the safety related equipment in the Cable Spreading Room. Therefore, an 8-hour report to the NRC is required under 10 CFR 50.72(b)(3)(ii)(B), 'Any event or condition that results in the nuclear power plant being in an unanalyzed condition that significantly degrades plant safety.'"

The licensee will notify the NRC Resident Inspector.

* * * RETRACTION ON 1/26/2012 AT 1339 EST FROM ROBERT MARTIN TO MARK ABRAMOVITZ * * *

"Engineering performed an evaluation to address the impact of the degraded condition on the barrier's design functions. The evaluation concluded that the barrier remained capable of performing its design function with the degraded seal present. Therefore, this condition does not represent an unanalyzed condition that significantly degrades plant safety. The NRC Resident Inspector has been notified."

Notified the R1DO (Dentel).

MEDICAL TREATMENT OF A POTENTIALLY CONTAMINATED INDIVIDUAL AT ONSITE FACILITY

"10 CFR 70.50 (b)(3) requires a twenty-four hour report of an event that requires unplanned medical treatment at a medical facility of an individual with spreadable radioactive contamination on the individual's clothing or body.

"An individual's fingers were potentially exposed to HF [hydrogen fluoride]. The potential HF exposure was believed to be caused by a pin hole in a glove-box glove. The glove was replaced and other glove-box gloves were inspected. The individual's fingers were rinsed and calcium gluconate cream was applied in the Radiological Control Area (RCA). As a precautionary measure, the individual was sent to the on-site medical area (within the Owner Controlled Area) for review/observation. Minor radioactive contamination, below minimum detectable activity (MDA) for the equipment, was removed from the individual's fingers at the medical area. The radioactive contamination was below radioactive release limits. In addition, at the medical area, the individual's finger was irrigated with water and additional calcium gluconate cream was applied. The individual was monitored and then released by medical personnel. No evidence of HF exposure was observed.

"The licensee is making this report on a voluntary basis due to the ambiguous nature of the regulation [10 CFR 70.50 (b)(3)]. It should be noted that Part 50 guidance as well as internal licensee guidance refers to medical treatment at off-site medical facilities.

"The licensee has notified the NRC Resident Inspector."