05000296/FIN-2014002-03
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Finding | |
|---|---|
| Title | Failure to Perform MSIV As-found Leakage Test Under Suitable Conditions |
| Description | An NRC identified non-cited violation (NCV) of 10 CFR 50, Appendix B, Criterion XI, Test Control, was identified for the licensees failure to establish adequate written procedures for the test program to determine MSIV as-found leakage that met the requirements of 10 CFR 50, Criterion XI, Test Control. Specifically, Browns Ferry test procedure 3-SR-3.6.1.3.10 did not specify what suitable testing conditions were required to be established prior to testing. Additionally, the practice of allowing multiple valve strokes prior to testing was contrary to the procedure prerequisite of no allowed preliminary adjustments and constituted unacceptable preconditioning of the tested valves. The licensees corrective action was to perform as-left leakage measurements under different conditions and enter the issue into the corrective action program as PER 847688. The finding was more than minor because it adversely affected the Barrier Integrity cornerstone objective to provide reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. Specifically, the failure to determine as-found leakage reduced the ability of the licensee to provide reasonable assurance that the MSIVs would be able to perform their isolation function. The inspectors evaluated the finding using IMC 0609, Appendix A, the Significance Determination Process (SDP) for at-power findings, Exhibit 3 Barrier Integrity Screening Questions, dated June 19, 2012, and determined the finding was of very low safety significance (Green) because it did not represent an actual open pathway in the physical integrity of reactor containment and did not involve an actual reduction in the function of the hydrogen igniters in the reactor containment. This finding has a cross-cutting aspect in the area of Human Performance, Documentation, because Browns Ferrys MSIV testing procedures were not complete in that they did not specify all required initial conditions and allowed preconditioning the valves. |
| Site: | Browns Ferry  |
|---|---|
| Report | IR 05000296/2014002 Section 1R15 |
| Date counted | Mar 31, 2014 (2014Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | C Kontz D Dumbacher J Bartley L Pressley M Coursey R Hamilton T Stephen W Pursley |
| Violation of: | 10 CFR 50 Appendix B Criterion XI |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
| ' | |
Finding - Browns Ferry - IR 05000296/2014002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Browns Ferry) @ 2014Q1
Self-Identified List (Browns Ferry)
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