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Event Notification Report for August 26, 2009

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
08/25/2009 - 08/26/2009

EVENT NUMBERS
45300

Power Reactor
Event Number: 45300
Facility: VOGTLE
Region: 2     State: GA
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JOHN COVINGTON
HQ OPS Officer: DONG HWA PARK
Notification Date: 08/26/2009
Notification Time: 09:20 [ET]
Event Date: 08/26/2009
Event Time: 09:00 [EDT]
Last Update Date: 08/28/2009
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
MALCOLM WIDMANN (R2DO)
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
2 N Y 100 Power Operation 100 Power Operation
Event Text
LOSS OF RESPONSE CAPABILITY DUE TO MAINTENANCE RENDERING TSC NON-FUNCTIONAL

"The TSC Air Handling Unit will be taken OOS to repair one of the two compressors. In order to perform this corrective maintenance, the TSC HVAC will be removed from service for [approximately] 1 hour to disconnect the compressor to be repaired and in doing so will render the TSC HVAC inoperable which renders the TSC as non-functional. The TSC HVAC will be restarted to return the TSC to an operable and functional status. The work to repair or replace the compressor is planned to be completed within (1-3 days). After the work is completed, the system will be taken out of service again to reconnect the compressor ([approximately] 1 hr) and return the TSC HVAC to service."

The licensee notified the NRC Resident Inspector.

* * * UPDATE FROM J.W. COVINGTON TO V. KLCO AT 1045 ON 8/28/2009 * * *

Maintenance was completed and the TSC was restored to operable status.

The licensee notified the NRC Resident Inspector.

Notified the R2DO(Widmann).