ML110680281
| ML110680281 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 03/09/2011 |
| From: | Nick Hilton, Hott C NRC/OE |
| To: | Exelon Generation Co |
| Hott, Christopher NRC/OE 415-1167 | |
| References | |
| EA-11-014, IR-11-012 EN-11-007 | |
| Download: ML110680281 (2) | |
Text
PRELIMINARY INFORMATION - NOT FOR PUBLIC DISCLOSURE UNTIL VERIFICATION THAT LICENSEE HAS RECEIVED ACTION March 9, 2011 EN 11-007 OFFICE OF ENFORCEMENT NOTIFICATION OF SIGNIFICANT ENFORCEMENT ACTION Licensee: Exelon Generation Company, LLC EA-11-014 Byron Station Unit 2 Docket Nos. 50-455
Subject:
ISSUANCE OF FINAL SIGNIFICANCE DETERMINATION AND NOTICE OF VIOLATION This is to inform the Commission that a Notice of Violation (NOV) associated with a White Significance Determination Process (SDP) finding will be issued on or around March 14, 2011, to Exelon Generation Company, LLC (Licensee) as a result of an inspection at Byron Station, Unit 2.
This White finding, an issue with low to moderate safety significance, which may require additional NRC inspections, involved the Licensees failure to have appropriate acceptance criteria to ensure that a flange connection on the upper lube oil cooler of the 2A diesel generator was correctly torqued following maintenance. This led to the 2A diesel generator being inoperable beyond the allowed outage time of 14 days. The 2A diesel generator was inoperable since January 17, 2010 and the issue was identified when a significant oil leak developed during routine monthly surveillance testing on November 17, 2010.
An NOV is included based on the Licensees failure to meet 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures and Drawings, which requires, in part, that instructions, procedures, or drawings shall include appropriate quantitative or qualitative acceptance criteria for determining that important activities have been satisfactorily accomplished. In accordance with the NRC Enforcement Policy, the NOV is considered an escalated enforcement action because it is associated with a White finding.
It should be noted that the licensee has not been specifically informed of the enforcement action.
The schedule of issuance and notification is:
Mailing of final significance determination March 14, 2011 Telephone notification of licensee March 14, 2011 The State of Illinois will be notified.
CONTACTS: Christopher A. Hott, OE, (301) 415-1167 Nick D. Hilton, OE, (301) 415-3055 PRELIMINARY INFORMATION - NOT FOR PUBLIC DISCLOSURE UNTIL VERIFICATION THAT LICENSEE HAS RECEIVED ACTION
PRELIMINARY INFORMATION - NOT FOR PUBLIC DISCLOSURE UNTIL VERIFICATION THAT LICENSEE HAS RECEIVED ACTION DISTRIBUTION: EN-11-007, March 9, 2011 OWFN OWFN TWFN EBB Regional Offices Chairman Jaczko EDO OCFO NMSS RI RII Comm. Svinicki DEDR OP CENTER RIII RIV Comm. Apostolakis DEDMRS FSME Comm. Magwood OE NRO MAIL Comm. Ostendorff OGC OIG ADAMS SECY NRR OCIO OE staff OCA NSIR RES PA OI ACRS IP DISTRIBUTION:
PUBLIC OE R/F RZimmerman, OE ACampbell, OE EN binder ADAMS Accession Number: ML110680281 OFFICE OE:ES OE:BC NAME CHott/ndr NHilton DATE 3/08/2011 3/09/2011 OFFICIAL RECORD COPY PRELIMINARY INFORMATION - NOT FOR PUBLIC DISCLOSURE UNTIL VERIFICATION THAT LICENSEE HAS RECEIVED ACTION