05000259/FIN-2016001-07
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Licensee Event Report (LER) 05000259/2015-005-00 Inboard Main Steam Isolation Valve Actuators Inoperable for Longer Than Allowed by Technical Specifications. TS 3.6.1.3 condition A required, in part, that when one or more penetration flow paths with one Primary Containment Isolation Valve (PCIV) inoperable except due to MSIV leakage not within limits that within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> the affected penetration flow path be isolated by use of at least one closed and de-activated automatic valve with flow through the valve secured. TS 3.6.1.3 condition E required, in part, that when the Required Action and associated Completion Time of Condition A was not met in MODE 1, that the Unit must be placed in Mode 3 within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and Mode 4 within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. Contrary to the above, on multiple occasions between December 1, 2012 and October 29, 2015, the inboard MSIVs PCIV function was inoperable on all main steam lines on all three Units longer than the allowed outage time and the follow on action completion time. This violation is documented in the licensees CAP as CR 1098857. This finding was screened to Green using IMC 0609 Appendix H dated May 6, 2004. Table 6.2 Phase 2 Risk Significance was used to screen the finding to Green because at no point during the time period between December 1, 2012 and October 29, 2015 did any outboard MSIV leakage on any Unit exceed 10,000 scfh. |
| Site: | Browns Ferry  |
|---|---|
| Report | IR 05000259/2016001 Section 4OA7 |
| Date counted | Mar 31, 2016 (2016Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Blamey A Nielsen A Ruh C Fontana D Dumbacher R Kellner R Powell R Williams S Sanchez T Stephen |
| Violation of: | Technical Specification |
| INPO aspect | |
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Finding - Browns Ferry - IR 05000259/2016001 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Browns Ferry) @ 2016Q1
Self-Identified List (Browns Ferry)
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