05000255/FIN-2009005-01
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Finding | |
|---|---|
| Title | NOED for repair to service water pump P-7C |
| Description | During the request for a NOED, the licensee committed to performing an independent verification of hardness on each pump coupling. Subsequently, the licensee informed the inspectors that an independent verification of hardness had not been completed on each coupling. On September 29, while at 100 percent power, the upper shaft coupling for the P-7C service water pump failed, rendering the pump inoperable. The licensee determined that the pump would not be operable prior to expiration of the 72 completion time. On October 1, the licensee verbally requested enforcement discretion to avoid a shutdown. During the request, the licensee informed the NRC that the failed coupling likely failed due to improper heat treatment of the coupling that resulted in high out of specification hardness. Since the testing requirements in place should have identified the out of specification hardness, the licensee committed to independently testing each coupling for hardness prior to installation. The licensee reiterated that each coupling would be independently hardness tested prior to installation in the written NOED request. Subsequently, the licensee informed the NRC that the independent hardness test had not been performed. The licensee wrote a CR to document this item and evaluated that the P-7C was operable. The independent hardness test could not be performed with the pump re-assembled. The inspectors evaluated the licensees assessment of operability of the P-7C pump using the guidelines of 71111.15. The inspectors concluded there was reasonable assurance the couplings were acceptable. Pending determination on whether a violation occurred, URI 05000255/2009005-01 will remain open. |
| Site: | Palisades  |
|---|---|
| Report | IR 05000255/2009005 Section 4OA3 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | M Holmberg B Jose J Cassidy M Mitchell J Ellegood T Taylor J Corujo-Sandin G Hansenm Holmbergj Cassidy J Lennartz J Ellegood S Bakhsh J Giessner R Russell T Taylor T Tran A Istar D Tarantinoj Cassidyj Ellegood J Giessner T Taylor |
| INPO aspect | |
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Finding - Palisades - IR 05000255/2009005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palisades) @ 2009Q4
Self-Identified List (Palisades)
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