05000440/FIN-2015008-03
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Finding | |
|---|---|
| Title | Failure to Provide Adequate Guidance to Override Spurious CO2 Initiation Signal in the Diesel Generator Rooms |
| Description | The inspectors identified a finding of very low safety significance (Green), and an associated NCV of TS Section 5.4.1.a for the licensees failure to have adequate procedural guidance in their fire response procedure. Specifically, Procedure ONI-P54, Fire, Revision 19 did not list all the fire areas where a potential fire induced spurious carbon dioxide (CO2) initiation in the emergency diesel generator (EDG) room could occur. The licensee entered this issue into their CAP, and established hourly fire watches for the affected areas. The inspectors determined that the performance deficiency was more than minor because a fire in any of the affected fire zones could damage circuits for the nonsafety-related CO2 systems for the EDG rooms causing a potential spurious CO2 initiation in the diesel rooms and affecting the operation of the ventilation fans and dampers in the diesel rooms. The finding was of very low safety significance because it did not affect the ability to reach and maintain a stable plant condition within the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of a fire event. The finding did not have a cross-cutting aspect associated with it because it was not reflective of current performance. |
| Site: | Perry  |
|---|---|
| Report | IR 05000440/2015008 Section 1R05 |
| Date counted | Dec 31, 2015 (2015Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | A Dahbur D Szwarc G Hausman R Daley R Winter |
| Violation of: | Technical Specification - Procedures Technical Specification |
| INPO aspect | |
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Finding - Perry - IR 05000440/2015008 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Perry) @ 2015Q4
Self-Identified List (Perry)
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