05000254/FIN-2009005-02
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Finding | |
|---|---|
| Title | Darley Pump Leaking Gasoline from the Fuel Pump |
| Description | A finding of very low safety significance was self-revealed for the failure to perform maintenance that would ensure the portable emergency flooding pump (Darley pump) was in a standby condition and readily available to accomplish the requirements of QCOA 0010-16, Flood Emergency Procedure. Specifically, the failure to perform adequate maintenance resulted in the need to replace the battery and gasoline for the pump and, upon pump start, fuel sprayed out of the fuel pump. Although the staged portable pump would not have supported the external flooding emergency response procedure, no violation of regulatory requirements occurred. The inspectors did not identify a cross-cutting aspect associated with this finding because the issue is not reflective of current licensee performance. Immediate corrective actions included replacement of the degraded battery and overhaul of the pumps fuel pump. Other actions included identification of preventative maintenance tasks and establishing a program owner of the pump and support equipment. This issue was more than minor because it was associated with the Structures, Systems, and Components (SSC) Performance attribute of the Barrier Integrity Cornerstone objective of maintaining the functionality of spent fuel pool cooling. The finding affected the cornerstone objective of providing assurance that physical design barriers protect the public from radionuclide releases caused by events including external flooding. Specifically, the pump could fail due to maintenance preventable component failure resulting in inadequate or degraded makeup to the spent fuel pool during an external flooding event. The inspectors determined the finding could be evaluated using the SDP in accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Phase 1 - Initial Screening and Characterization of findings, Tables 4a and 4b. The inspectors determined that even though this equipment is assumed to completely fail, the licensee could provide an alternate portable pump already located on site and capable of performing the safety function during this slow developing event. Since alternate equipment was available and the delay in mobilizing the alternate equipment would not have resulted in loss of capability to mitigate the impact of the flooding event, the issue is of very low safety significance or Green. (Section 4OA2 |
| Site: | Quad Cities  |
|---|---|
| Report | IR 05000254/2009005 Section 4OA2 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | Finding: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | B Cushman C Mathews C Moore J Mcghee M Bielby M Mitchell M Ring R Jickling R Orlikowski |
| INPO aspect | |
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Finding - Quad Cities - IR 05000254/2009005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Quad Cities) @ 2009Q4
Self-Identified List (Quad Cities)
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