05000324/FIN-2008004-02
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Technical Specification 5.4.1, Administrative Control (Procedures), requires that written procedures shall be established, implemented, and maintained covering applicable procedures recommended in Regulatory Guide 1.33, Appendix A, November 1972. Regulatory Guide 1.33,Section I (1) states 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 the above, the licensees procedure 0CM-PHM504, Pacific Pumps, Model RHCH, HPCI main pump maintenance, Revision 7, was inadequate because the pump was reassembled with an improper clearance between the seal sleeve and seal plate bushing. On July 18, 2008, the main pump inboard seal failed due to excessive heating at the shaft sleeve due to contact between the seal plate bushing and the shaft sleeve such that the shaft sleeve set screw force applied to the shaft was relieved, and the pump internal pressure forced the seal sleeve out 1/8 inch. This 1/8 inch extension caused excessive force to be applied on the seal faces which resulted in premature failure due to seal face overheating followed by a quench. This issue is more than minor because it affects the Mitigating Systems Cornerstone objective of ensuring the availability, reliability and capability of systems that respond to initiating events to prevent core damage and is associated with the cornerstone attribute of equipment performance. This finding is of very low safety significance because the HPCI pump did not exceed its allowed TS outage time. This issue has been entered into the CAP as AR 287869287869 |
| Site: | Brunswick  |
|---|---|
| Report | IR 05000324/2008004 Section 4OA7 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | J Austin R Moore R Musser R Lewis C Even M Coursey G Kolcum B Collins J Eargle |
| INPO aspect | |
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Finding - Brunswick - IR 05000324/2008004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Brunswick) @ 2008Q3
Self-Identified List (Brunswick)
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