05000280/FIN-2010005-04
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Finding | |
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| Title | |
| Description | A licensee identified AV of 10CFR50.65 (a)(4), Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, was revealed after the licensee discovered that 2-BS-DR-21, common emergency switchgear room (ESGR) door was blocked open for two hours without clear communication to licensed operators. The licensee did not adequately assess the increase in operational risk that resulted in the required risk management actions of fire and environmentally qualified watches not being established. The licensee immediately corrected the condition by shutting the HELB door and having security control personnel access. The issue was entered into the licensees CAP as CR397720. The failure to adequately assess the increased risk associated with blocking open the common ESGR door and to take the required risk management actions is a performance deficiency. This finding is more than minor because it is associated with the Mitigating Systems Cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, both Unit 1 and Unit 2 plant risk were not evaluated and risk management activities were not put in place when the common ESGR door was blocked open for maintenance and unable to perform its function as a fire barrier, a halon suppression pressure boundary, a main control room pressure boundary, and a HELB boundary. In accordance with IMC 0609, Appendix K, Maintenance Risk Assessment and Risk Management Significance Determination Process, this finding will require a phase 3 analysis. The significance of this finding is to be determined pending completion of the phase 3 evaluation. The inspectors determined that this finding had a cross-cutting aspect in the work control component of the human performance area because the licensee did not appropriately plan work activities by incorporating risk insights (H.3(a)). (Section 1R15.b.2 |
| Site: | Surry  |
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| Report | IR 05000280/2010005 Section 4OA5 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | AV: |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | |
| Inspectors (proximate) | D Mills G Kolcum G Mccoy J Nadel M Riches R Clagg T Kolbr Hamiltonj Nadel L Lake R Chou C Welch J Dodson E Lea G Mccoy G Kolcum |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Surry - IR 05000280/2010005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Surry) @ 2010Q4
Self-Identified List (Surry)
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