05000346/FIN-2012005-04
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Technical Specification 5.4.1(a) requires the licensee to establish, implement, and maintain applicable written procedures for the safety-related systems and activities recommended in Regulatory Guide (RG) 1.33, Revision 2, Appendix A. Section 9(a), Procedures for Performing Maintenance, of RG 1.33, Revision 2, Appendix A, further states, in part, that: Maintenance that can affect the performance of safety-related equipment should be properly preplanned and performed in accordance with written procedures, documented instructions, or drawings appropriate to the circumstances. Contrary to this requirement, during the week ending November 17, 2012, the licensees instructions for replacing the lube oil cooler left bank side jacket water inlet o-ring seal on EDG No. 1 via WO no. 200493894 improperly called for a metal-to-metal joint fit up. Specifically, the EDG vendors instructions, which were translated into the licensees work instructions to maintenance personnel, were imprecise and confusing. In one location, the vendors instructions specified a metal-to-metal joint fit up, while in another location a 1/16th inch gap was specified. This lack of clarity in the work instructions caused the joint to leak three times before it was finally able to be properly sealed on the fourth iteration. The additional iterations for the performance of this work added significant time to the periods of inoperability and unavailability for EDG No. 1, and caused the licensee to make an unplanned entry into an elevated (i.e., Orange) plant risk awareness state. |
| Site: | Davis Besse  |
|---|---|
| Report | IR 05000346/2012005 Section 4OA7 |
| Date counted | Dec 31, 2012 (2012Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Dunlop A Wilson D Kimble D Reeser J Cameron J Laughlin L Jones M Phalen P Smagacz R Walton T Briley |
| INPO aspect | |
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Finding - Davis Besse - IR 05000346/2012005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Davis Besse) @ 2012Q4
Self-Identified List (Davis Besse)
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