Skip to main content

Event Notification Report for January 09, 2003

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
01/08/2003 - 01/09/2003

EVENT NUMBERS
39496

Power Reactor
Event Number: 39496
Facility: QUAD CITIES
Region: 3     State: IL
Unit: [] [2] []
RX Type: [1] GE-3,[2] GE-3
NRC Notified By: DARYL CLARK
HQ OPS Officer: RICH LAURA
Notification Date: 01/09/2003
Notification Time: 12:47 [ET]
Event Date: 01/09/2003
Event Time: 05:40 [CST]
Last Update Date: 01/09/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
ROGER LANKSBURY (R3)
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
Event Text
RHR VALVE AUTOMATICALLY WENT CLOSED INSTEAD OF OPEN DURING TESTING

"At 0540 hours CST on 1/9/03 during the performance of QCOS 1000-09 (RHR Power Operated Valve Test), the RHR Injection Valve 2-1001-29A automatically closed upon achieving the full open position. Group II isolation relays for both the 2-1001-29A and 2-1001-29B valves were discovered energized, which would cause these injection valves to close thereby prohibiting the low pressure injection function for both RHR subsystems (note that no Group II isolation signal was present). As such, Technical Specifications 3.5.1 Condition D was entered. The isolation logic relays were reset (deenergized) at 0625 CST and the 2-1001-29A and 2-1001-29B valves were satisfactorily cycled. Technical Specifications 3.5.1 Condition D has been exited. A prompt investigation is in progress.

"The notification is being made in accordance with 10CFR50.72(b)(3)(V)."

The NRC Resident Inspector has been notified.