05000455/FIN-2008003-08
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Finding | |
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Title | LICENSEE-IDENTIFIED Violation |
Description | Technical Specification 3.4.15, Condition A, requires that an inoperable containment sump monitor be returned to operable status within 30 days. Technical Specification 3.4.15, Condition C, requires that if Condition A was not met, the unit must be in Mode 3 in 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in Mode 5 in 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. Contrary to these, Unit 1 was operated since 1976 with the containment sump monitor inoperable. Alternative equipment existed to assist the operators in identifying RCS unidentified leakage. These instruments included a containment radiation monitor, volume control tank level indicators, post accident containment sump level instruments, containment pressure indicators, containment temperature indicators, and pressurizer level instruments. Based upon this, the violation was of very low safety significance. The licensee entered this issue into the corrective action program as IR 755837 |
Site: | Byron |
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Report | IR 05000455/2008003 Section 4OA7 |
Date counted | Jun 30, 2008 (2008Q2) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | B Bartlett C Acosta C Thompson C Zoia D Jones J Cassidy J Jacobson N Feliz Adorno R Jickling R Ng R Russell R Skokowski T Bilik V Meghani |
INPO aspect | |
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Finding - Byron - IR 05000455/2008003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Byron) @ 2008Q2
Self-Identified List (Byron)
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