05000483/FIN-2013004-04
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Technical Specification (TS) 3.8.1.a, requires two qualified electrical circuits between the offsite transmission network and the onsite for AC power system during Modes1, 2, 3, and 4. Required Action A.3 of this TS requires that with one offsite circuit inoperable, the licensee restore the circuit to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in Mode 3 within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Contrary to the above, one offsite circuit was inoperable but was not restored within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, and the plant was not placed in Mode 3 within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Specifically, on May 28, 2013, an oil leak on the startup transformer was discovered that had most likely begun during maintenance performed on the component on May 19, 2013, near the completion of a refueling outage. However, unaware of the leak at the time, the plant entered operating Mode 4, on May 22, 2013, and exceeded the 72-hour action. The licensee completed the leak repair on May 30, 2013. Using Inspection Manual Chapter 609, Appendix A, Exhibit 2, Mitigating Systems Cornerstone screening questions, Section A, the finding was determined to be of very low safety significance (Green) because within the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the startup transformer would have still supplied AC power to plant safety systems. The violation was entered into the licensees corrective action program as Callaway Action Request 201304347. |
| Site: | Callaway  |
|---|---|
| Report | IR 05000483/2013004 Section 4OA7 |
| Date counted | Sep 30, 2013 (2013Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | C Henderson C Steely E Schrader G Guerra K Clayton N O'Keefe P Elkmann P Smagacz R Kumana T Farina T Hartman Z Hollcraft |
| Violation of: | Technical Specification |
| INPO aspect | |
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Finding - Callaway - IR 05000483/2013004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2013Q3
Self-Identified List (Callaway)
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