05000269/FIN-2014002-01
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Finding | |
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Title | Inadequate Procedure to Ensure Adequate Piping Weld Inspections |
Description | A NRC-identified potentially Greater than Green Apparent Violation (AV) of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was identified when the licensee failed to ensure that procedure NDE-995, Ultrasonic Examination of Small Diameter Piping Butt Welds and Base Material for Thermal Fatigue Damage, was adequate to achieve acceptable coverage for the ultrasonic (UT) examination of weld 1-RC- 201-205. NDE-995 did not contain the necessary steps to achieve acceptable coverage for UT examinations when limitations were encountered. The licensee entered this finding into their corrective action program as PIP O-13-13168. The failure to ensure that station procedure NDE-995 was adequate to achieve acceptable coverage for the UT examination of weld 1-RC-201-205 was more than minor because it affected the Design Control attribute of the Initiating Events cornerstone and adversely affected the cornerstone objective in that an undetected crack resulted in reactor coolant system pressure boundary leakage and a forced shutdown of Unit 1. The inspectors determined that detailed risk analysis was required. There was no immediate safety concern because the crack was repaired. The inspectors determined this finding has a cross-cutting aspect of H.7 in the Documentation component of the Human Performance area because the licensee did not create and maintain complete, accurate, and up-to-date documentation in procedure NDE-995 to ensure acceptable coverage for UT examinations. |
Site: | Oconee |
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Report | IR 05000269/2014002 Section 4OA3 |
Date counted | Mar 31, 2014 (2014Q1) |
Type: | AV: |
cornerstone | Initiating Events |
Identified by: | NRC identified |
Inspection Procedure: | IP 71153 |
Inspectors (proximate) | C Clark D Bollock E Crowe G Croon J Dymek J Jacobson M Riley N Childs R Cureton R Williams |
CCA | H.7, Documentation |
INPO aspect | WP.3 |
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Finding - Oconee - IR 05000269/2014002 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Oconee) @ 2014Q1
Self-Identified List (Oconee)
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