05000335/FIN-2008005-02
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Finding | |
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| Title | Failure of the Automatice Diesel Fuel Oil Transfer System Could Potentially Result in the 1A EDTG Being Inoperable |
| Description | While reviewing CR 2008-32418, 1A-EDG Fuel Oil Transfer Pump Did Not Start When Required, the inspectors determined that during the TS required 24-hour surveillance run of the 1A-EDG performed on October 22, 2008, the licensee had to mechanically agitate the day tank level switch LS-59-008A for the fuel oil transfer pump to automatically start. The day tank low level switch should have actuated to start the transfer pump and begin refilling the day tanks. The inspectors noted that LS-59-008A had failed previously during a routine calibration in June of 2007, and was replaced under WO 37012672. Design Basis Document (DBD) Section 7.14.1 states, in part, that the EDG day tanks shall be provided with level switches to automatically operate the transfer pumps and the solenoid isolation valves. This was necessary to ensure uninterrupted operation of the associated diesel generator set. The inspectors determined that Technical Specifications do not specifically address either day tanks or level switches, or the automatic function of the fuel oil system itself. Therefore, additional inspections are needed to resolve this issue. This item is identified as Unresolved Item (URI) 05000335/2008-002, Failure of the Automatic Diesel Fuel Oil Transfer System Could Potentially Result in the 1A EDG Being Inoperable. |
| Site: | Saint Lucie  |
|---|---|
| Report | IR 05000335/2008005 Section 4OA2 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | URI: |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | M Sykes R Bernhard S Ninh S Sanchez T Hoega Nielsene Michel G Kuzo M Sykes N Griffis R Carrion S Sanchez T Hoeg |
| INPO aspect | |
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Finding - Saint Lucie - IR 05000335/2008005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Saint Lucie) @ 2008Q4
Self-Identified List (Saint Lucie)
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