ML073241325
| ML073241325 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 09/18/2007 |
| From: | Cotton K Office of Nuclear Reactor Regulation |
| To: | Scott Shaeffer Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2008-0016 | |
| Download: ML073241325 (8) | |
Text
K r n Cottonl iflal ar AlITNI-(
slideý t
Page 1 *1 6/
From:
To:
Date:
Subject:
Karen Cotton Scott Shaeffer 09/18/2007 5:47:28 PM Final Farley AITNRC slides.ppt f5 sw I
af en Cotton - Farl-ey Ai TUR-C" -slid'e-sppt PaQe 1 }1 LLre Cotn-FalvAT R lds DtPo
/ U.S.NRC UNITED STATES NUCLEAR REGULATOAY COMMISSION Protecting People and the Environment Senate Committee on Environment and Public Works Briefing September 19, 2.007 1
NRC Staff Headquarters David Decker - Congressional Affairs Timothy McGinty - Nuclear Reactor Regulation (NRR), Deputy Director of Division of Operating Reactor Licensing (DORL)
Steven Alexander - NRR, PRA Operations Support;
& Maintenance Branch, Augmented Inspection Team Member Karen Cotton -
NRR, DORL, Joseph M. Farley Nuclear Plant -
Project Manager Region II Scott Shaeffer - Chief, Reactor Projects Branch 2 Michael Ernstes - Chief, Training and Development Branch 2
I Karen" Cotton - Farley AITNRC sliqe-s-kpý,K~n ottol-Fa~eyATNRC~ide~pptPage3 Sf),U.S.NRC Joseph M. Farley Nuclear Plant Operator - Southern Nuclear Operating Company
- Type - Westinghouse; PWR; 3-loop
- Units-Two
- Unit 1 - 830 MWt Unit2-839 MWt 3
Kareýn Cotton - Fa~riey AITNRC siqoeS.Pt Page4
- U.S.NRC History of events On May 3, 2007 The U.S. Nuclear Regulatory Commission completed a supplemental inspection regarding the Cooling Water Systems.
several significant weaknesses were identified regarding:
- evaluations for repeat safety-related breaker failures
- the thoroughness of design modification reviews for the installation of new breakers 4
tton - Farley AiTNRC slides.ppt I-'age 5 I Karen Cotton - Farley AITNRC slides.ppt Page b 1 History of events On September 4, 2007
- After a planned maintenance on the 1 B component cooling water (CCW) pump, the licensee encountered a problem when testing the functional relationships between the Unit 1 1 B CCW pump and the 1C CCW pump.
- The Cutler-Hammer breaker failed to close when the licensee attempted to manually start the 1C CCW pump from the control room.
On September 5, 2007
- The 1A CCW pump Allis-Chalmers breaker failed to close when manually started from the control room when the licensee tested the functionality of the 1B CCW pump and the 1A CCW pump.
5
~T~nCttn
-FrHy AITNRC~sie e"
Augmented Inspection Team
- The previous events precipitated the formation of an Augmented Inspection Team
- The team was chartered on September 10, 2007 6
Karen Cotton -
sldes Pa&77
(-,,ý.".S.]NIEC Next Steps
- Public Exit Meeting; September 20, 2007 at the site NRC will continue to:
Confirm root cause analysis and extent of condition
- Evaluate potential findings or violations Monitor interim and long-term corrective action for the identified breaker problems Develop AIT Inspection Report 7