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Event Notification Report for December 01, 2012

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
11/30/2012 - 12/01/2012

EVENT NUMBERS
4854848549

Power Reactor
Event Number: 48548
Facility: INDIAN POINT
Region: 1     State: NY
Unit: [2] [3] []
RX Type: [2] W-4-LP,[3] W-4-LP
NRC Notified By: CHRIS BOHREN
HQ OPS Officer: VINCE KLCO
Notification Date: 12/01/2012
Notification Time: 16:28 [ET]
Event Date: 12/01/2012
Event Time: 14:00 [EST]
Last Update Date: 12/01/2012
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
MARC FERDAS (R1DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 100 Power Operation 100 Power Operation
3 N Y 100 Power Operation 100 Power Operation
Event Text
TSC VENTILATION NOT ABLE TO DIRECT AIRFLOW TO THE CHARCOAL FILTER

"The Technical Support Center (TSC) Ventilation failed to enter 'Incident Mode' as required during scheduled testing. That is, the air cannot be re-directed through the charcoal filter in an event requiring the TSC atmosphere to be filtered due to an on-site release. The TSC ventilation system remains in service providing proper temperature control to maintain the facility habitable during normal operation; however with the 'Incident Mode' being unavailable, it may not remain habitable during all postulated scenarios and is, therefore, considered non-functional."

The licensee will notify the NRC Resident Inspector and the New York Public Service Commission.


Power Reactor
Event Number: 48549
Facility: MCGUIRE
Region: 2     State: NC
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: ERIC WILKINSON
HQ OPS Officer: JOHN KNOKE
Notification Date: 12/02/2012
Notification Time: 03:05 [ET]
Event Date: 12/01/2012
Event Time: 23:17 [EST]
Last Update Date: 12/02/2012
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
MIKE ERNSTES (R2DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 31 Power Operation 14 Power Operation
Event Text
AMSAC ACTUATED AT LOWER THAN EXPECTED TURBINE INLET PRESSURE

"The Anticipated Transient Without Scram Mitigation System Actuation Circuitry (AMSAC) caused a Unit 2 turbine trip with reactor power at 31%. The 2A and 2B Auxiliary Feedwater pumps automatically started. The 2B Nuclear Service Water pump started as a result of 2B Auxiliary Feedwater pump automatically starting. The Main Feedwater Regulating valves and the Main Feedwater Bypass valves were in the correct position for corresponding power level and turbine inlet pressure, but AMSAC actuated earlier than design (290 psig vs. 360 psig)."

The licensee has notified the NRC Resident Inspector.