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Event Notification Report for August 2, 2017

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Event Reports For
08/01/2017 - 08/02/2017

** EVENT NUMBERS **


52881

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Power Reactor Event Number: 52881
Facility: DUANE ARNOLD
Region: 3 State: IA
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: MARK BUSSELL
HQ OPS Officer: BETHANY CECERE
Notification Date: 08/01/2017
Notification Time: 17:00 [ET]
Event Date: 08/01/2017
Event Time: 09:34 [CDT]
Last Update Date: 08/01/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
RICHARD SKOKOWSKI (R3DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 99 Power Operation 99 Power Operation

Event Text

HIGH PRESSURE COOLANT INJECTION STEAM SUPPLY VALVE FAILED TO REPOSITION

"At 0934 CDT, while appropriately removed from service for pre-planned testing, the High Pressure Coolant Injection (HPCI) inboard steam isolation valve, MO-2238, valve position indication was found to be inadequate. As a result, MO-2238 was declared inoperable in accordance with Technical Specification (TS) 3.6.1.3. This resulted in a condition that caused the HPCI system to be inoperable.

"The cause of the inadequate valve position indication is currently being investigated. This report is being made pursuant to 10 CFR 50.72(b)(3)(v)(D).

"The NRC Resident Inspector has been informed."

Page Last Reviewed/Updated Wednesday, August 02, 2017
Wednesday, August 02, 2017