05000361/FIN-2009003-01
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Finding | |
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| Title | Failure to Evaluate the Impact of Temporary Scaffolding on Installed Fire Protection Systems |
| Description | The inspectors identified a noncited violation of License Condition 2.C.(14), Fire Protection, for the failure of licensee personnel to evaluate scaffolding for its impact on fire protection systems. Specifically, the licensee failed either (1) to demonstrate that obstructed sprinkler heads in the Unit 2 emergency diesel generator building train B, the Unit 3 emergency diesel generator building train A, and the Unit 2 saltwater cooling pump room were operable; or (2) to generate a fire protection impairment and establish an hourly firewatch for inoperable sprinkler heads in the Unit 2 emergency diesel generator building train B, the Unit 3 emergency diesel generator building train A, and the Unit 2 saltwater cooling pump room. This finding was entered into the licensees corrective action program as Nuclear Notification 200449046. This finding is greater than minor because the identified programmatic deficiencies could lead to a more significant safety concern if left uncorrected. This finding is associated with the Mitigating Systems Cornerstone. Using Manual Chapter 0609, Appendix F, Fire Protection Significance Determination Process, Attachment 2, this finding was determined to have a LOW degradation rating because fewer then 10 percent of the sprinkler heads were nonfunctional, there was a functional sprinkler head within 10 feet of the combustibles of concern, and the system was nominally code compliant. Therefore, this finding was determined to be of very low safety significance. This finding has a crosscutting aspect in area of human performance associated with work practices because the licensee failed to ensure personnel work practices support human performance. Specifically, the licensee failed to effectively communicate human error prevention techniques such as proper documentation of activities and failed to ensure personnel do not proceed in the face of uncertainty H.4(a) (Section 1R05) |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000361/2009003 Section 1R05 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | L Ricketson J Reynoso W Sifre G Warnick M Young A Fairbanks M Catts B Correll E Ruesch C Ryan T Buchanan A Vegel |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
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Finding - San Onofre - IR 05000361/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2009Q2
Self-Identified List (San Onofre)
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