05000348/FIN-2008002-01
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Finding | |
|---|---|
| Title | Installation of a Maintenance Jumper for the 2C CCW Pump Cell Switch |
| Description | The NRC identified a Green NCV of 10 CFR 50 Appendix B, Criterion III for failing to implement measures to verify design adequacy resulting in the installation of a maintenance jumper on the cell switch for the Unit 2 2C Component Cooling Water (CCW) pump. This resulted in a condition unknown to the licensee at the time of installation, allowing simultaneous start of both the 2C and 2B CCW pumps in response to a loss of offsite power (LOSP) or safety injection (SI) sequencer signal. This finding has been entered into the licensees CAP as Condition Report (CR) 2007112315. Failure to verify design adequacy for safety-related components is a performance deficiency. This finding is more than minor because inadequate design evaluations challenged the operability of the A train of CCW. Subsequently, the A CCW train was shown to be operable following additional engineering evaluations. The finding affects the design control attribute of the Mitigating Systems cornerstone. The cornerstone objective of ensuring the availability, reliability, and capability of systems responding to initiating events to prevent undesirable consequences was not met. The Phase 1 screening performed by the NRC concluded the finding is of very low safety significance (Green) |
| Site: | Farley  |
|---|---|
| Report | IR 05000348/2008002 Section 1R15 |
| Date counted | Mar 31, 2008 (2008Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | E Crowe S Shaeffer M Bates B Caballero S Sandal |
| INPO aspect | |
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Finding - Farley - IR 05000348/2008002 | ||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Farley) @ 2008Q1
Self-Identified List (Farley)
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