05000387/FIN-2011004-02
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Finding | |
|---|---|
| Title | Inadequate Maintenance Practices Result in Trip of Protected Equipment Spent Fuel Pool Cooling Pump |
| Description | A self-revealing Green finding of NDAP-QA-0340, Protected Equipment program, Revision 10, was identified when the 2A fuel pool cooling (FPC) pump tripped during maintenance on the 2AFPC heat exchanger (HX). The pump and HX had been designated as protected equipment. The unavailability and loss of pump functionality resulted in an off-normal procedure entry. PPL entered this issue into their CAP as CR 1438904 and completed an apparent cause evaluation (ACE). The finding was more than minor due to its adverse effect on the Barrier integrity cornerstone attribute of system, structure, and component performance to maintain spent fuel pool cooling (SFPC) system functionality and its objective to provide reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. The finding was screened in accordance with IMC 0609 Attachment 4, Phase 1 - Initial Screening and Characterization of Findings, and was determined to be of very low safety significance, Green, due to its not being associated with the loss of cooling to the spent fuel pool (SFP) that would have precluded restoration prior to boiling, a fuel handling error, or loss of SFP inventory. The finding had a cross-cutting aspect in the area of Human Performance, Work Practices, in that PPL did not use human error prevention techniques commensurate with the risk of the assigned task nor did personnel stop work in the face of uncertainty |
| Site: | Susquehanna  |
|---|---|
| Report | IR 05000387/2011004 Section 1R13 |
| Date counted | Sep 30, 2011 (2011Q3) |
| Type: | Finding: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.13 |
| Inspectors (proximate) | A Rosebrook E Burket J Greives M Orr P Finney P Krohn S Pindale |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
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Finding - Susquehanna - IR 05000387/2011004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Susquehanna) @ 2011Q3
Self-Identified List (Susquehanna)
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