05000254/FIN-2009002-06
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | Title 10 CFR 50, Appendix B, Criterion III, Design Control, requires in part that measures be established to assure that applicable regulatory requirements and design basis...are correctly translated into specifications, drawing, procedures and instructions. Contrary to the above, on January 26, 2009, the licensee identified that the operating duty cycle for the containment atmospheric monitor (CAM) system had been changed without appropriate consideration of equipment qualified life limitations in the current design basis calculations. The duty cycle had been changed from approximately 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> per month as assumed in the qualified equipment life calculations performed in accordance with 10 CFR 50.49, Environmental qualification of electric equipment important to the safety of nuclear power plants, to full time operation. Neither the system operating procedure nor the engineering change review performed in support of the operating duty cycle change identified the operating limitations contained in the equipment qualification program requirement and therefore measures to assure that the design basis requirements were appropriately incorporated into the operating practices were not adequate. This nonconforming condition was incorporated into the licensees corrective action program as IR 872127. This finding was of very low safety significance because only one of the four CAM subsystems (configuration is two for each unit) was inoperable as a result of exceeding the equipment qualified lifetime and therefore, the functional capability was not lost for either unit. Licensee corrective actions included replacement of the affected electrical components, conducting training for engineers performing review functions, and revision to preventative maintenance program schedules and operating procedures to incorporate the design basis operating limitations |
| Site: | Quad Cities  |
|---|---|
| Report | IR 05000254/2009002 Section 4OA7 |
| Date counted | Mar 31, 2009 (2009Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | G O'Dwyer R Jickling R Langstaff C Matthews W Slawinski M Ring J Mcghee B Cushman J Coroju-Sandin |
| INPO aspect | |
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Finding - Quad Cities - IR 05000254/2009002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Quad Cities) @ 2009Q1
Self-Identified List (Quad Cities)
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