05000220/FIN-2009002-03
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Finding | |
|---|---|
| Title | Failure to Properly Standby Liquid Control System Surveillance |
| Description | A self-revealing non-cited violation (NCV) of Technical Specification (TS) 5.4, Procedures, was identified on January 30, 2009, when operators did not align the Unit 2 Division 2 Standby Liquid Control (SLC) system in accordance with the surveillance procedure and establish a pump discharge flow path. As a result, following pump start, the pump discharge relief valve lifted due to high system pressure and the valve subsequently required replacement due to excessive seat leakage. As immediate corrective action for this event, the SLC pump was secured and the system was returned to its normal standby alignment to support further testing. The issue was entered into the corrective action program (CAP) as condition report(CR) 2009-548.The finding was more than minor because it was associated with the human performance attribute of the Mitigating Systems cornerstone and adversely affected the associated cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined that the finding was of very low safety significance because the finding was not a design or qualification deficiency, did not represent a loss of a system/train safety function, and did not screen as potentially risk significant due to external events. This finding had a cross-cutting aspect in the area of human performance because the operators did not effectively use human error prevention techniques such as pre-job briefing, self and peer checking, and proper documentation of activities (H.4.a per IMC 0305) |
| Site: | Nine Mile Point  |
|---|---|
| Report | IR 05000220/2009002 Section 1R22 |
| Date counted | Mar 31, 2009 (2009Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.22 |
| Inspectors (proximate) | M Marshfield D Dempsey B Haagensen J Furia G Dentel E Knutson S Shaffer N Perry J Hawkins |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
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Finding - Nine Mile Point - IR 05000220/2009002 | |||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Nine Mile Point) @ 2009Q1
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