Finding | |
|---|---|
| Title | Use of NON-CONFORMING Components in SAFETY-RELATED Applications |
| Description | The licensee had a number of historical breaker failures for which no cause was identified, and others for which no root cause was performed. Assigning lower significance to the Condition Reports (CRs) associated with these failures resulted in lower tier reviews of cause and less thorough documentation of corrective measures. Had more rigorous evaluation of these failures been conducted, additional trending information may have been obtained. Review of the two databases revealed no significant insight into any but the most recent of breaker failures. The licensee, despite the previous awareness and sensitivity to the gap dimension, placed an Allis-Chalmers breaker which had been removed from the safety-related RHR system for excessive gap clearance (0.063\") into the DG04 cubicle from which the ECH breaker had been removed after its September 4th failure. It was not until two days later that the system engineer detected the discrepancy during paperwork reviews. This item is left unresolved pending investigation of the reasons for the non-conforming breaker being placed in service in a safety-related system. It is identified as an Unresolved Item and is tracked under URI 05000348(364)/2007010-02, Use of Non-Conforming Components in Safety Related Applications. |
| Site: | Farley  |
|---|---|
| Report | IR 05000348/2007010 Section 4OA5 |
| Date counted | Sep 30, 2007 (2007Q3) |
| Type: | URI: |
| cornerstone | No Cornerstone |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 93800 |
| Inspectors (proximate) | T Ross W Lewis G Khouri S Alexandere Crowes Shaeffer M Bates B Caballero S Sandal |
| INPO aspect | |
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Finding - Farley - IR 05000348/2007010 | |||||||||||||||||||||||||
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Finding List (Farley) @ 2007Q3
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