05000528/FIN-2009005-05
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Finding | |
|---|---|
| Title | Inadequate Procedures to Diagnose and Mitigate a Loss of Instrument Air to the Containment |
| Description | A self-revealing noncited violation of 10 CFR Part 50, Appendix B, Criterion V, \"Instructions, Procedures, and Drawings,\" was identified for the failure of operations personnel to adequately establish and implement procedures associated with a loss of instrument air to containment. Specifically, on December 3, 2009, the alarm response and abnormal operating procedures available to the Unit 3 control room operating staff were inadequate to consistently diagnose and mitigate a loss of instrument air to containment. This issue was entered into the licensees corrective action program as Condition Report/Disposition Request (CRDR) 3411457. The performance deficiency associated with this finding involved the failure of operations personnel to adequately establish and implement alarm response and abnormal operating procedures associated with a loss of instrument air to containment. The finding is more than minor because it is associated with the procedure quality attribute of the Initiating Events Cornerstone and affects the cornerstone objective of limiting the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Using Manual Chapter 0609.04, \"Phase 1 Initial Screening and Characterization of Findings,\" the finding was determined to have very low safety significance because the finding did not contribute to both the likelihood of a reactor trip and the likelihood that mitigation equipment or functions will not be available. This finding has a crosscutting aspect in the area of problem identification and resolution associated with the corrective action program because the licensee failed to implement the corrective action program with a low threshold for identifying issues P.1(a) (Section 4OA3) |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000528/2009005 Section 4OA3 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | R Lantz R Treadway B Henderson L Carson M Young B Larson J Bashore M Catts M Baquera T Farina |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
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Finding - Palo Verde - IR 05000528/2009005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palo Verde) @ 2009Q4
Self-Identified List (Palo Verde)
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