05000302/FIN-2011002-02
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Improved Technical Specification (ITS) 3.4.9 states that two pressurizer code safety valves (PCSVs) shall be operable in Modes 1, 2 and 3. To be operable, the lift setpoints must be within +/- 2 percent of 2500 psig. Contrary to the above, on September 1, 2010 and on October 5, 2010, Progress Energy was notified that the as-found lift setpoints of PCSVs RCV-9 and RCV-8 were outside ITS setpoint limits, respectively. The as-found lift setpoint of RCV-9 was 5.32 percent above the lift setpoint and RCV-8 was 2.08 percent above the lift setpoint. The licensee identified a selected cause associated with the licensees failure to manage vendor quality. The performance deficiency, failure to provide proper relief valve specifications to the vendor, was determined to be greater than minor because if left uncorrected, the performance deficiency would have the potential to lead to a more significant safety concern regarding the integrity of the reactor coolant system (RCS) barrier during plant transients. Corrective actions planned or completed include: changing the as-left setpoint to +0/-1 percent of the nominal setpoint; installing PCSVs with +0/-1 percent of nominal setpoint prior to unit startup; creation of a test procedure for steam testing the PCSV to meet the licensees standards; and revision of specifications associated with PCSV repairs. As documented in Section 4OA3, the finding was determined to be of very low safety significance (Green) because there was no loss of safety function due to the lift setpoints being outside of the ITS limit. This issue was documented in the licensees corrective action program as NCR 426852. |
| Site: | Crystal River  |
|---|---|
| Report | IR 05000302/2011002 Section 4OA7 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | M Bates R Reyes T Morrissey L Lake R Carrion D Rich J Sowa N Childs |
| INPO aspect | |
| ' | |
Finding - Crystal River - IR 05000302/2011002 | ||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Crystal River) @ 2011Q1
Self-Identified List (Crystal River)
| ||||||||||||||||||||||||||||||||||||||||||||||||||