ML042960160

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Meeting Summary of the Oyster Creek Regulatory Conference on the EDG
ML042960160
Person / Time
Site: Oyster Creek
Issue date: 10/14/2004
From: Eselgroth P
NRC/RGN-I/DRP/PB7
To:
AmerGen Energy Co
Eselgroth P W
Shared Package
ML042860063 List:
References
Download: ML042960160 (2)


Text

October 14, 2004 MEETING

SUMMARY

LICENSEE: AmerGen Energy Company LLC FACILITY: Oyster Creek Nuclear Generating Station

SUBJECT:

Regulatory Conference on September 27, 2004 On September 27, 2004, at 1:00 p.m., a regulatory conference was conducted in Region I between the Nuclear Regulatory Commission (NRC) and AmerGen Energy Company. The purpose of the meeting was to discuss a Preliminary Greater-Than-Green Finding at the Oyster Creek Nuclear Generating Station. This finding was published on August 12, 2004, in NRC Inspection Report 50-219/2004-03. The finding involved inadequate torqueing of bolts on an emergency diesel generator (EDG) fan shaft support bearing, which caused high vibration of the shaft during a test in May 2004. The inadequate bolting condition existed for a period of 17 days following maintenance on the EDG in late April 2004.

The meeting was opened by the Chief of DRP Branch 7 who presented the NRCs preliminary finding in this matter. AmerGen then described the corrective actions taken in this matter as well as the results of a special test program conducted on an EDG at a fossil fuel station in the Midwest that is similar to the Oyster Creek EDG. AmerGen presented the results of that testing and indicated that the EDG was capable of completing a portion of its mission time given the degraded bolting on the EDG fan shaft bearing support. AmerGen also provided the results of its revised risk assessment, using information from this special test program, to propose that the EDG was capable of performing a substantial portion of its required mission time, lowering the estimated risk of the event to below the Green-White threshold.

At the end of the meeting between the NRC and AmerGen, public attendees were offered the opportunity to ask questions of NRC officials. Questions raised by the media and concerned citizens were addressed by the NRC. The presentation slides and the attendance list can be located in the Agencywide Documents Access and Management Systems (ADAMS) by referring to Accession No. ML042860063. ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html.

Sincerely,

/RA/

Peter W. Eselgroth, Chief Projects Branch 7 Division of Reactor Projects

2 DOCUMENT NAME: E:\Filenet\ML042960160.wpd After declaring this document An Official Agency Record it will be released to the Public. To receive a copy of this document, indicate in the box: "C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy OFFICE RI/DRP RI/DRP NAME RBarkley/RSB PEselgroth/PWE DATE 10/08/04 10/14/04 OFFICIAL RECORD COPY