At 0935 on November 6, 2005, all offsite notification
sirens for Crystal River Unit 3 were lost. One
siren failed and sent a feedback signal which in turn disabled all remaining
sirens. The failed
siren was bypassed at 1124, thereby restoring the remaining 39
sirens to service. The failed
siren will be repaired promptly. During the loss of
siren function, backup means of notifying the public were available, including route alerting using local law enforcement and use of the Code Red autodialing system. This is reportable as an immediate notification (eight-hour report) in accordance with
10CFR50.72(b)(3)(xiii).
The siren system is maintained by the county. Compensatory measures for the remaining area is either: dispatching a police car, or fire truck, or using the Code Red autodialing system for the affected area.
The licensee notified the NRC Resident Inspector.