05000424/FIN-2011003-01
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Finding | |
|---|---|
| Title | Failure to Establish and Implement Adequate Post Maintenance Testing for 1HV-0943B |
| Description | A self-revealing, non-cited violation (NCV) of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was identified for failure to specify and implement adequate post maintenance testing to ensure important maintenance activities have been satisfactorily accomplished. Specifically, inadequate post maintenance testing (PMT) resulted in the depressurization of all four safety injection (SI) accumulators below minimum technical specification (TS) allowed values. Upon recognizing that the accumulators were below TS allowed pressure setpoint of 626 psig, the licensee immediately restored accumulator pressures to within TS allowed pressure band of 626 to 678 psig. The licensee has entered the issue into their corrective action program (CR 2011105621) and is in the process of enhancing the work control process to require a peer review of all post maintenance testing prior to work order release. This issue is more than minor because it is associated with a cornerstone attribute and adversely affects the objective of the Mitigating Systems cornerstone. Specifically, the performance deficiency of failing to specify adequate PMT resulted in the depressurization of all four SI accumulators. The finding was determined to be of very low safety significance (Green) because the event did not result in the actual loss of system safety function or the safety function of a single train for greater than its TS allowed outage time. The inspectors determined that the cause of this finding was related to the Resources component of the Human Performance cross-cutting area. Specifically, the licensee did not ensure complete and accurate work packages associated with the repair of 1HV-0943B, SI Accumulator Nitrogen Vent valve. H.2(c) |
| Site: | Vogtle  |
|---|---|
| Report | IR 05000424/2011003 Section 1R19 |
| Date counted | Jun 30, 2011 (2011Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.19 |
| Inspectors (proximate) | T Chandler T Su C Smith M Cain M Speck R Patterson R Williams S Shaeffer |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Vogtle - IR 05000424/2011003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Vogtle) @ 2011Q2
Self-Identified List (Vogtle)
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