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Event Notification Report for June 02, 2009

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
06/01/2009 - 06/02/2009

EVENT NUMBERS
45112

Power Reactor
Event Number: 45112
Facility: DIABLO CANYON
Region: 4     State: CA
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JAMES DILLIS
HQ OPS Officer: JOHN KNOKE
Notification Date: 06/02/2009
Notification Time: 04:50 [ET]
Event Date: 06/02/2009
Event Time: 01:22 [PDT]
Last Update Date: 06/02/2009
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
RYAN LANTZ (R4DO)
ERIC LEEDS (NRR)
BRIAN MCDERMOTT (NSIR)
ELMO COLLINS (RA)
JEFF GRANT (NSIR)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
Event Text
UNUSUAL EVENT - SMOKE ALARM IN PROTECTED AREA LASTING GREATER THAN 15 MINUTES

Licensee declared an Unusual Event due to a possible fire in the protected area inside containment. The smoke alarm could not be verified before 15 minutes, therefore licensee entered into EAL HU 2.1. Seventeen smoke detectors located inside the containment feed into this alarm, and it is unknown if more than one smoke detector initiated the alarm. The local fire department was not requested to respond to the site. Licensee is sending personnel inside containment to investigate whether or not this alarm was spurious. There is no indication of smoke or an increase in temperature in or around the containment. There was no radiological release to the environment.


* * * UPDATE FROM JAMES DILLIS TO JOHN KNOKE AT 0618 EDT ON 06/02/09 * * *

Licensee completed their investigation inside containment and determined there was no fire. Licensee terminated the Unusual Event at 0618 EDT.

Licensee has notified the NRC Resident Inspector. Notified R4DO (Ryan Lantz), IRD MOC (Jeff Grant), NRREO (M. Evans), DHS (Inzer), FEMA (D. Barden)