05000281/FIN-2014002-01
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Finding | |
|---|---|
| Title | Recirculation Spray Heat Exchanger Inlet Isolation Valve MOV Thermal Overload Not Properly Reset |
| Description | A self-revealing NCV of Surry Technical Specification (TS) 6.4.A.7 was identified because 1-SW-MOV-103D, the B and C recirculation spray heat exchanger (RSHX) inlet isolation valve, motor thermal overload was improperly reset after planned maintenance and became disengaged on November 29, 2013, rendering one service water (SW) flow path of the B and C recirculation spray (RS) subsystem inoperable. The issue was documented in Surrys corrective action program (CAP) as CR 533932. The licensees failure to include acceptance criteria for determining if a thermal overload was properly reset was a performance deficiency (PD) that was within the licensees ability to foresee and correct. Specifically, an inadequate procedure did not have electricians verify that the trip indication flag in the thermal overload had fully cleared the viewing window or provide some other criteria for acceptance. The inspectors determined that the PD was more than minor because it was associated with the procedural quality attribute of the Mitigating Systems Cornerstone, and it adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the motor thermal overload was improperly reset after planned maintenance which resulted in rendering one SW flow path of the B and C RS subsystem inoperable thereby affecting the availability of the RS subsystem. Using Manual Chapter 0609.04, Initial Characterization of Findings, Table 2, dated June 19, 2012, the finding was determined to affect the Mitigating Systems Cornerstone. The inspectors screened the finding using Manual Chapter 0609, Appendix A, Significance Determination Process (SDP) for Findings at-Power dated June 19, 2012, and determined that it screened as Green because the deficiency did not affect the design or qualification of the RS system and it did not represent a loss of system safety function. This finding has a cross-cutting aspect in the Documentation aspect of the human performance area, H.7, because the licensee did not create and maintain a complete and accurate procedure to ensure that MCC thermal overloads were properly reset. |
| Site: | Surry  |
|---|---|
| Report | IR 05000281/2014002 Section 1R15 |
| Date counted | Mar 31, 2014 (2014Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | A Butcavage J Nadel K Roche M King P Mckenna |
| Violation of: | Technical Specification - Procedures Technical Specification |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Surry - IR 05000281/2014002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Surry) @ 2014Q1
Self-Identified List (Surry)
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