Finding | |
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| Title | Failure to write a condition report (CR) for an adverse condition associated with water accumulating in the turbine building supply fan housing plenum area |
| Description | The inspectors identified a Green non-cited violation (NCV) of Vermont Yankee Technical Specifications Section 6.4, Procedures, for Vermont Yankees failure to take action to correct a specific and foreseen malfunction of a plant component. Specifically, Vermont Yankee failed to initiate a condition report (CR) for an adverse condition associated with water accumulating in the turbine building supply fan housing plenum area, which led to the inoperability of the A emergency diesel generator (EDG) on January 21, 2009 for four hours. Vermont Yankee operations and maintenance personnel stopped the source of the water accumulation and restored the A EDG to operable status. This NCV has since been entered into the Vermont Yankee corrective action program (CAP). The finding was more than minor because it was associated with the Equipment Performance attribute of the Mitigating Systems cornerstone; and, it affected the cornerstone objective of ensuring the reliability, availability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the A EDG was rendered inoperable for approximately four hours, but less than the sevenday Technical Specifications (TS) 3.10 allowed outage time. The finding had a crosscutting aspect in the Corrective Action Program component of the Problem Identification and Resolution (PI&R) cross-cutting area because Vermont Yankee did not identify within the CAP the rising water level in the turbine building supply fan housing plenum area in a timely manner commensurate with its safety significance P.1(a). (Section 1R12) |
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
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| Report | IR 05000271/2009002 Section 1R12 |
| Date counted | Mar 31, 2009 (2009Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | M Marshfield G Johnson D Jackson S Rutenkroger T Setzer H Balian B Sienel J Commiskey T Koonce |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
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Finding - Vermont Yankee - IR 05000271/2009002 | ||||||||||||||||||||||||||||||||||||||
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Finding List (Vermont Yankee) @ 2009Q1
Self-Identified List (Vermont Yankee)
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