05000327/FIN-2010005-02
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Finding | |
|---|---|
| Title | Failure to implement Technical Specification requirements to vent ECCS piping |
| Description | The inspectors identified a Green non-cited violation of Technical Specification 6.8.1(c), Procedures and Programs, for the failure to establish surveillance test procedures to verify that ECCS piping systems were full of water by venting accessible piping high points on the suction side of the ECCS pumps as required by Surveillance Requirement (SR) 4.5.2.b.1. The licensee has entered this issue into their corrective action program as service request 291511. The finding was determined to be greater than minor because it adversely affected the equipment performance attribute of the mitigating systems cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the failure to perform surveillance tests on the ECCS system reduced the assurance that the system could respond to initiating events to prevent undesirable consequences. Using IMC 0609, Significance Determination Process, Attachment 4, Phase 1 - Initial Screening and Characterization of Findings, the finding was determined to be of very low safety significance (Green) since it was not a design or qualification deficiency, it did not represent the loss of a system safety function or the loss of any equipment trains, and is not potentially risk significant due to seismic, flooding or severe weather initiating events. Because site interdepartmental communication, coordination, and cooperation were not sufficient to identify the impact of changes to ECCS surveillance requirements on existing surveillance test procedures, the cross cutting aspect in the work control component of the human performance area applies to this finding H.3(b) |
| Site: | Sequoyah  |
|---|---|
| Report | IR 05000327/2010005 Section 4OA5 |
| Date counted | Dec 31, 2010 (2010Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | R Patterson R Williams S Sandal W Deschaine W Loo C Young E Guthrie L Lake L Mahlahla M Riches M Speck P Higgins R Aiello R Baldwin R Hamilton |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Sequoyah - IR 05000327/2010005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Sequoyah) @ 2010Q4
Self-Identified List (Sequoyah)
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