05000483/FIN-2009003-05
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Finding | |
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Title | Licensee-Identified Violation |
Description | Title 10 of the Code of Federal Regulations 50, Appendix B, Criterion XVI, Corrective Action, requires, in part, that measures be established to assure conditions adverse to quality are promptly identified and corrected. Contrary to the above, the licensee failed to implement adequate corrective actions for the identified adverse condition that load shedding emergency load sequencing and balance of plant engineered safety feature actuation system power supplies were failing prematurely due to aging. Failures in 1992, 2002, 2008, and most recently in 2009 resulted in recommendations for a preventative maintenance program upgrade to establish a frequency to changeout the power supplies. These recommendations were identified but not implemented. Immediate corrective actions were to prepare power supply change out packages until a modification could be completed. This finding was entered in the licensees corrective action program as Callaway Action Request 200903381. This finding is greater than minor because it was associated with the equipment performance attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. This finding is of very low safety significance because it was not a design or qualification deficiency resulting in a loss of operability or functionality, did not represent a loss of system safety function for greater than its technical specification allowed outage time, did not result in an actual loss of safety function of nontechnical specification risk significant equipment for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and did not screen as risk significant due to a seismic, flooding, or severe weather initiating event |
Site: | Callaway |
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Report | IR 05000483/2009003 Section 4OA7 |
Date counted | Jun 30, 2009 (2009Q2) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | D Dumbacher P Elkmann D Stearns V Gaddy J Groom |
INPO aspect | |
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Finding - Callaway - IR 05000483/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2009Q2
Self-Identified List (Callaway)
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