05000269/FIN-2012003-05
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | 10 CFR Part 50, Appendix B, Criterion III, Design Control, stated, in part, that measures shall be established to assure that deviations from appropriate quality and design standards are controlled and that the review for suitability of application of equipment essential to safety-related functions of SSCs is maintained. Contrary to the above, from 2005 until August 11, 2011, a review for suitability of application of equipment essential to safety-related functions of structures, systems, and components had not been performed. The licensee failed to ensure that the pressurizer heaters would perform their function following a loss-of-offsite-power (LOOP) event. As a result, the total available emergency-powered heater capacity during a LOOP did not comply with Technical Specification 3.4.9 for Units 1 and 2. This condition existed since March 2005 which resulted in the TS 3.4.9, Action Condition C, 72-hour completion time being exceeded. This violation was determined to be of very low safety significance (Green) because analysis showed that it would take over five days for the east penetration room to reach a temperature that would trip the supply breakers and station procedures dictate that the unit enter a Mode that would not require pressurizer heaters if offsite power could not be recovered prior to five days. The licensee entered this issue into their corrective action program as PIPs O-11-8094, O-11-6700, and O-12-2655. |
| Site: | Oconee  |
|---|---|
| Report | IR 05000269/2012003 Section 4OA7 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Sabisch G Ottenberg B Collins K Ellis E Stamm A Sengupta S Darbali J Bartley W Loo |
| INPO aspect | |
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Finding - Oconee - IR 05000269/2012003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Oconee) @ 2012Q2
Self-Identified List (Oconee)
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