05000250/FIN-2015001-02
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | 10 CFR 50, Appendix B, Criterion III, Design Control, required, in part, that measures shall be established to assure that applicable regulatory requirements and the plants design basis are correctly translated into drawings, procedures, and instructions and that these measures shall provide for verifying or checking the adequacy of the design. Contrary to the above, the licensee did not translate the design basis requirement, the 4A ECC fan auto-start upon failure to run of the 4C ECC fan, into the 4C ECC breaker replacement instructions and procedures. As a result, during the replacement of the 4C ECC fan breaker, the 4A ECC fan auto-start control power leads were disconnected and not re-terminated upon completion of the work. Consequently, the 4A and 4C ECC fans were unable to automatically start on a Train B safety injection (SI) signal for a period of approximately 25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />. This violation was associated with the Barrier Integrity Cornerstone and determined to be of very low safety significance (Green) because the loss of this equipment or function by itself, did not represent an actual open pathway in the physical integrity of the reactor containment, containment isolation, or heat removal components, and did not involve an actual reduction in function of hydrogen igniters in the reactor containment. The licensee entered this violation into their CAP as AR 1990010. |
| Site: | Turkey Point  |
|---|---|
| Report | IR 05000250/2015001 Section 4OA7 |
| Date counted | Mar 31, 2015 (2015Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | E Stamm M Endress M Riches T Hoeg |
| Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
| INPO aspect | |
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Finding - Turkey Point - IR 05000250/2015001 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Turkey Point) @ 2015Q1
Self-Identified List (Turkey Point)
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