05000445/FIN-2009005-02
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Finding | |
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| Title | Failure to Close the Containment Airlock Outer Door |
| Description | The inspectors reviewed a self-revealing noncited violation of Technical Specification 5.4.1.a for the failure of maintenance personnel to follow procedural requirements for closing the containment personnel airlock outer door. As a result, the containment personnel outer door was left open for over an hour and the containment integrity function of the door was compromised. The licensee entered the finding into the corrective action program as Condition Report CR-2009-005275. The finding was more than minor because it was associated with the containment barrier performance attribute of the barrier integrity cornerstone and affects the cornerstone objective to provide reasonable assurance that physical barriers protect the public from radionuclide releases caused by events. Using NRC Manual Chapter 0609, Attachment 4, Phase 1 - Initial Screening and Characterization of Findings, the finding was determined to be of very low safety significance because the performance deficiency did not result in an actual open pathway in the physical integrity of the containment. The finding has a human performance crosscutting aspect associated with decision making because the licensee did not communicate the basis of the importance of the containment door providing an integrity function to the personnel operating the door H.1c |
| Site: | Comanche Peak  |
|---|---|
| Report | IR 05000445/2009005 Section 1R20 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | K Clayton B Tharakan L Carson W Walker B Tindell J Mateychick D Bollock D Graves T Buchanan J Kramer N Hernandez J Dixon |
| CCA | H.10, Bases for Decisions |
| INPO aspect | CO.2 |
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Finding - Comanche Peak - IR 05000445/2009005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Comanche Peak) @ 2009Q4
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