05000244/FIN-2010004-02
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Finding | |
|---|---|
| Title | Failure to Identify Five Pumps in the Inservice Testing Alert Range |
| Description | A self-revealing non-cited violation (NCV) of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, was determined based on Ginna\\\'s failure to identify that vibration data exceeded the inservice testing (IST) acceptance criteria for five pumps. On June 30, 2009, Ginna identified that the \\\'B\\\' RHR pump vibration data had exceeded the required action range for IST criteria for the previous four surveillance tests due to vibration data being incorrectly measured and analyzed. Ginna\\\'s apparent cause evaluation (ACE) documented that an extent of condition review was completed which identified all the additional components that were unknowingly in the IST alert or required action range from May 2008 to June 2009. On August 4, 2010, Ginna tested the \\\'A\\\' motor-driven auxiliary feedwater (MDAFW) pump and determined that it was in the alert range for inboard bearing vibration. During their analysis, Ginna discovered that during the last comprehensive test in October 2008, the same vibration point was in the IST alert range. This had not been identified during Ginna\\\'s previous extent of condition review. Subsequently, Ginna performed another extent of condition review and identified that four other components were outside the vibration acceptance criteria and in the alert range. Ginna\\\'s immediate corrective actions included entering this issue into their CAP and verifying that all other IST pumps were within the IST acceptable range. This finding is more than minor because it was repetitive and it affected a number of pumps. The finding is associated with the equipment performance attribute of the Mitigating Systems Cornerstone and adversely affected the objective of ensuring the capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined that the finding was of very low safety significance (Green) because it was not a design or qualification deficiency, did not represent a loss of safety function, and did not screen as potentially risk significant due to seismic, flooding, or severe weather. This finding has a cross-cutting aspect in the area of problem identification and resolution (PI&R), corrective action program, in that Ginna did not thoroughly evaluate IST program vibration data during their extent of condition review conducted in 2009 as a result of the \\\'8\\\' residual heat removal pump exceeding the IST required action range (P.1.c per IMC 0310). |
| Site: | Ginna  |
|---|---|
| Report | IR 05000244/2010004 Section 1R19 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.19 |
| Inspectors (proximate) | S Pindale G Hunegs K Young F Arner G Dentel N Perry R Rolph L Casey |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Ginna - IR 05000244/2010004 | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Ginna) @ 2010Q3
Self-Identified List (Ginna)
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