05000282/FIN-2009003-03
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Finding | |
|---|---|
| Title | Failure to Maintain Control of Unit 1 Containment Personnel Airlock Configuration |
| Description | A self-revealed finding of very low safety significance and an Non-Cited Violation of Technical Specification 5.4.1 were identified on March 25, 2009, due to the failure of licensed operators to maintain control of the Unit 1 containment personnel airlock outer door. This resulted in the Unit 1 containment personnel airlock being unknowingly inoperable for approximately 45 minutes. Corrective actions for the issue included returning the Unit 1 containment airlock outer door to an operable status, developing a case study for inclusion during licensed operator training, and developing a procedure on operating the containment airlock doors. This finding was determined to be more than minor because if left uncorrected the failure to fully understand and control the configuration of plant equipment could become a more significant safety concern. The inspectors determined that this finding was of very low safety significance because it did not represent a degradation of the radiological barrier function provided for the control room, auxiliary building, or spent fuel pool; the finding did not represent a degradation of the barrier function of the control room against smoke or a toxic atmosphere; the finding did not represent an actual open pathway in the physical integrity of reactor containment due to the inner airlock door being fully closed; and the finding did not involve an actual reduction in function of the hydrogen igniters in the reactor containment. The inspectors concluded that this finding was cross-cutting in the Human Performance, Work Practices area because licensee personnel failed to follow procedures regarding the requirement to maintain an awareness of the configuration of plant equipment at all times (H.4(b)). (Section 1R15.1b(2) |
| Site: | Prairie Island  |
|---|---|
| Report | IR 05000282/2009003 Section 1R15 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | D Betancourt J Giessner J Neurauter K Stoedter M Phalen P Zurawski R Jones |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Prairie Island - IR 05000282/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Prairie Island) @ 2009Q2
Self-Identified List (Prairie Island)
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