05000266/FIN-2013004-03
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Finding | |
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| Title | Missing Verification Steps and Acceptance Criteria in Turbine-Driven Auxiliary Feedwater Pump Overhaul Procedure |
| Description | The licensee identified a finding of very low safety significance (Green) and associated NCV of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure to have procedures appropriate to the circumstances. Specifically, procedure RMP 9044-8, Turbine Driven Auxiliary Feedwater Pump Overhaul, did not contain instructions or acceptance criteria for verification of rotor axial position, verification of shaft locating ring thickness and verification for axial shaft clearances. The licensee confirmed that the missing information would be considered critical tolerances and incorrect values could have negative consequences on operation of the pump. This issue was entered into the CAP as AR01791932 and the procedure were corrected. The performance deficiency was determined to be more than minor in accordance with IMC 0612, Appendix B, because if left uncorrected, it would have the potential to lead to a more significant safety concern. Specifically, the failure to verify critical tolerances after rebuilding the turbine-driven AFW pump could result in a failure in the pump when needed to mitigate accident conditions. The inspectors determined the finding could be evaluated using the SDP in accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings, dated June 19, 2012, and Appendix A, The Significance Determination Process for Findings At-Power, Exhibit 2, Mitigating Systems Screening Questions, dated June 19, 2012. The inspectors determined that the finding did not result in the loss of operability for either of the turbine driven AFW pumps and answered No to Mitigating Systems Screening Questions 1-4, and screened the finding as having very low safety significance (Green). |
| Site: | Point Beach  |
|---|---|
| Report | IR 05000266/2013004 Section 4OA7 |
| Date counted | Sep 30, 2013 (2013Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | J Rutkowski D Betancourt K Barclay J Cameron M Thorpe-Kavanaugh P Smagacz V Myers J Steffes |
| Violation of: | 10 CFR 50 Appendix B Criterion V |
| INPO aspect | |
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Finding - Point Beach - IR 05000266/2013004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Point Beach) @ 2013Q3
Self-Identified List (Point Beach)
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