05000275/FIN-2011004-04
From kanterella
Revision as of 14:05, 30 September 2017 by StriderTol (talk | contribs) (Created page by program invented by StriderTol)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Finding | |
|---|---|
| Title | Failure to Perform Surveillances on Fire Barriers |
| Description | The inspectors identified a noncited violation of Diablo Canyon Facility Operating License Condition 2.C (4), Fire Protection, after the licensee failed to identify and correct the failure to perform required surveillance testing on fire-rated assemblies. On August 16, 2011, the inspectors identified that the licensee had not performed Equipment Control Guideline 18.7, Fire Rated Assemblies, surveillance testing on Fire Door 329-2, entrance to the 125VDC Battery 2-1 Room, and Fire Door 332-2, entrance to the 125VDC Battery 2-2 Room, within the required frequency. The inspectors also identified that both fire doors were degraded and did not meet the surveillance acceptance criteria. The licensee implemented the required compensatory actions for both fire doors and entered this finding into the corrective action program as Notification 50409975. The inspectors concluded that the failure of the licensee to perform required surveillance tests on fire-rated assemblies was a performance deficiency. This finding was more than minor because the degraded fire barrier affected the Mitigating Systems Cornerstone external factors attribute objective to prevent undesirable consequences due to fire. The inspectors concluded that the finding was of very low safety significance (Green) because the exposed fire areas did not contain any potential damage targets unique from those in the exposing fire area. This finding had a crosscutting aspect in the area of problem identification and resolution associated with the corrective action program component because the licensee did not adequately prioritize and perform an extent of condition review of previous problems associated with excluding fire barriers from the Equipment Control Guideline requirements |
| Site: | Diablo Canyon  |
|---|---|
| Report | IR 05000275/2011004 Section 1R05 |
| Date counted | Sep 30, 2011 (2011Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | G Guerra M Peck G Miller C Osterholtz E Ruesch D Reinert L Micewski |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
| ' | |
Finding - Diablo Canyon - IR 05000275/2011004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Diablo Canyon) @ 2011Q3
Self-Identified List (Diablo Canyon)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||