Event Notification Report for August 19, 2008

ALTERNATE SAFE SHUTDOWN LOCAL START CAPABILITY OF ALL FOUR EMERGENCY DIESEL GENERATORS MAY NOT BE AVAILABLE UNDER CERTAIN CONDITIONS

"On August 18, 2008, during biennial (i.e., every two years) non-Technical Specification related testing, Emergency Diesel Generator (EDG) No. 4 failed to start from the EDG local control panel. This occurred with the EDG aligned for Alternate Safe Shutdown (ASSD) response versus its normal alignment. The purpose of the testing is to confirm that the EDG control logic is isolated from the control room and only operable via local controls. Based on troubleshooting activities, it was discovered that this failure to start was due to improper wiring in the circuitry associated with the EDG lockout relay. The improper wiring was introduced by a modification performed on all four EDGs in 2007.

"At 1110 hours Eastern Daylight Time (EDT) on August 19, 2008, it was concluded that this condition impacted the ability of EDG Nos. 2, 3, and 4 to perform their intended ASSD function. The 2007, modification affected the termination point for the power to the EDG lockout relay reset coil. Per the modification, this termination point was incorrectly connected to the downstream side of the alternate shutdown isolation switch which results in a loss of power to the lockout reset when the switch is placed in local control. Therefore, in the unlikely event of a fire, an induced failure could potentially initiate a lockout signal which could not be reset from the EDG local control panel. Although the modification was installed on all four EDGs, only the local control of EDGs 2, 3, and 4 is credited in the safe shutdown analysis.

"This condition does not affect the Technical Specification operability of the EDGs and they remain fully capable of performing their intended design basis accident response functions.

"The NRC Resident Inspector has been notified."

Compensatory fire watches have been established and an engineering change package to correct the condition is being developed.

AGREEMENT STATE REPORT - PATIENT TREATMENT CALCULATION

"Hospital cited for current calibration of SR-90 eye applicator. During previous inspection, after calibration, recalculation of recent treatments indicated 3 patients received 50% overdose over the past year. RSO reports Oncologist and referring physician were pleased with patients response to treatment."

Texas Incident # I 8539

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.

AGREEMENT STATE REPORT - FIRE IN RESEARCH LABORATORY

This information was received from the state via fax:

"The afternoon of 8/19/2008 DHS [Department of Health Services] staff became aware a fire had occurred at a licensee facility the previous evening. Reports indicated the local fire department and hazardous materials teams had responded to a fire in a molecular biology lab on the campus of the University of Wisconsin - Madison. The fire was extinguished within 15 minutes. Reports also indicated the Hazardous Incident Team used instruments to rule out the presence of any radioactive materials. Although no contamination was detected, fire equipment was rinsed with water to remove any reside from the fire.

"DHS contacted the licensee. The licensee indicated staff members from radiation safety had responded to the incident the next morning. The research lab performs molecular biology research using P-32. The safety department staff performed surveys of the fire scene and identified areas of contamination on the floor. The areas had been decontaminated. Initial information from the licensee indicates approximately 0.5 to 0.7 millicuries of P-32 in waste containers was involved.

"The licensee did not report the incident to DHS. DHS inspectors were dispatched to investigate."

FITNESS FOR DUTY

A non-licensed PG&E employee was inattentive to his responsibilities, and was relieved of his duties. Contact the Headquarters Operations Officer for additional details.

The licensee has notified the NRC Resident Inspector.

* * * RETRACTION FROM T. GRAF TO V. KLCO AT 1232 EDT ON 8/20/08 * * *

" After review of the circumstances and Reg. Guide 5.62, the licensee believes the event is loggable."

The licensee will notify the NRC Resident Inspector. Notified R4DO (Gaddy).

ROD CONTROL SYSTEM MALFUNCTIONED

"On August 19, 2008, with the Unit shut down in Mode 3, post maintenance testing was being performed for the Digital Rod Position Indication System. While performing this test a 'Rod Control Urgent Failure' alarm was received upon initial withdrawal of Control Bank-C. All other control and shutdown banks remained fully inserted in the core. Local inspection revealed a phase failure on movable gripper coils in a power cabinet. In accordance with plant procedures, at 0905 hours, a manual reactor trip was initiated by operators opening the reactor trip breakers. All Safety Systems functioned as designed and Rod Control System repairs are in progress.

"This event posed no significant safety implications because the reactor was subcritical when the reactor trip breakers were opened. Compliance with all Technical Specification requirements was maintained. The health and safety of the public were not affected by this event."

The NRC Resident Inspector was notified.