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On May 14, 2001, Florida Power Corporation … On May 14, 2001, Florida Power Corporation's (FPC's) Crystal River Unit 3 (CR-3) was in MODE 1 (POWER OPERATION) at 85 percent RATED THERMAL POWER. While investigating a difference in main feedwater pump (MFP) discharge pressures, FPC personnel determined that feedwater check valve FWV-46 may not close as required to perform its containment isolation design function.</br></br>At 1648, on May 14, 2001, FWV-46 was declared inoperable. The Actions of Improved Technical Specification (ITS) 3.6.3, Condition C, were entered. Upon disassembly, the as-found condition of FWV-46 showed that the disc had separated from the valve and wedged in the valve body outlet.</br></br>FPC personnel concluded that FWV-46 became inoperable at 1525, on May 13, 2001, during an unplanned power reduction. FVVV-46 was inoperable for approximately 25 hours and 23 minutes before entering the Actions of ITS 3.6.3, Condition C. This is a condition prohibited by ITS and is reportable under 10CFR50.73(a)(2)(i)(B). This condition does not represent a reduction in the public health and safety. The cause for this condition was lack of procedural guidance to ensure proper installation of the check valve disc. FWV-46 has been repaired. Changes to Maintenance Procedure MP-120 have been initiated. Three previous similar LERs have been identified.revious similar LERs have been identified. +
On May 14, 2001, Florida Power Corporation … On May 14, 2001, Florida Power Corporation's (FPC's) Crystal River Unit 3 (CR-3) was in MODE 1 (POWER OPERATION) at 85 percent RATED THERMAL POWER. While investigating a difference in main feedwater pump (MFP) discharge pressures, FPC personnel determined that feedwater check valve FWV-46 may not close as required to perform its containment isolation design function.</br></br>At 1648, on May 14, 2001, FWV-46 was declared inoperable. The Actions of Improved Technical Specification (ITS) 3.6.3, Condition C, were entered. Upon disassembly, the as-found condition of FWV-46 showed that the disc had separated from the valve and wedged in the valve body outlet.</br></br>FPC personnel concluded that FWV-46 became inoperable at 1525, on May 13, 2001, during an unplanned power reduction. FVVV-46 was inoperable for approximately 25 hours and 23 minutes before entering the Actions of ITS 3.6.3, Condition C. This is a condition prohibited by ITS and is reportable under 10CFR50.73(a)(2)(i)(B). This condition does not represent a reduction in the public health and safety. The cause for this condition was lack of procedural guidance to ensure proper installation of the check valve disc. FWV-46 has been repaired. Changes to Maintenance Procedure MP-120 have been initiated. Three previous similar LERs have been identified.revious similar LERs have been identified. +
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