05000440/FIN-2009003-01
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Finding | |
|---|---|
| Title | RCS Temperature Below Minimum Allowed by TS Due to Inadequate Station Procedures |
| Description | A finding of very low safety significance and associated NCV of 10 CFR Part 50,Appendix B, Criterion V, Instructions, Procedures, and Drawings, was self-revealed when operators failed to maintain reactor coolant system (RCS) temperature greater than the TS minimum allowable temperature of 70 F because Integrated Operations Instruction (IOI)-9, Refueling, was inadequate. The licensee did not properly control an outage activity in that they failed to ensure the water sprayed into the reactor pressure vessel met temperature requirements. As part of their immediate corrective actions, licensee personnel stopped the activity and restored the RCS system above the TS 3.4.11 temperature requirements of 70 F. The licensee entered this issue into the corrective action program as CR 09-55397.This finding was determined to be more than minor because it was associated with the procedure quality attribute of the Barrier Integrity cornerstone, and adversely affected the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. Specifically, failure to maintain RCS temperature greater than the minimum allowed by TS affected the functionality of this barrier. Using IMC 0609, Appendix G, Shutdown Operations Significance Determination Process, Checklist 8, the inspectors determined that the finding did not require a Phase 2 or Phase 3 analysis because the plant had appropriately met the safety function guidelines for core heat removal, inventory control, power availability, containment integrity, and reactivity control. The issue did not need a quantitative assessment and screened as having very low safety significance using Figure 1. This finding has a cross-cutting aspect in the area of human performance, work control, per IMC 0305 H.3(a) because the organization failed to appropriately plan work and coordinate work activities consistent with nuclear safety. Specifically, job site conditions, including environmental conditions which may impact plant structures, systems, and components; were not considered to ensure water sprayed into the RCS would maintain temperature above 70 F |
| Site: | Perry  |
|---|---|
| Report | IR 05000440/2009003 Section 1R15 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | M Wilk M Marshfield M Phalen D Jones M Franke J Bashore R Leidy J Cameron R Murray C Tilton J Coroju-Sandin |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Perry - IR 05000440/2009003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Perry) @ 2009Q2
Self-Identified List (Perry)
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