05000280/FIN-2011002-04
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | None |
| Description | 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, requires, in part, that activities affecting quality shall be prescribed by documented procedures. Contrary to this, the licensee identified that procedure VPAP-0905, Insulation Control Program, Revision 5, was not adequately prescriptive to ensure control of insulation work to avoid critical components. Consequently, the Unit 1 Turbine Driven Auxiliary Feedwater Pump was rendered inoperable and unavailable when the trip throttle valve was inadvertently tripped during replacement of insulation on the pump. The inspectors determined the finding was more than minor because it adversely impacted the Mitigating Systems cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined that the violation was not greater than Green because it did not represent a loss of system safety function or the loss of safety function for a single train for greater than the TS allowed outage time. The inspectors determined that the licensee correctly evaluated the finding and developed appropriate corrective actions as documented in the licensees CAP as CR409949. 10 CFR Part 50.65 (a)(4) requires, in part, that, before performing maintenance activities, the licensee shall assess and manage the increase in risk that may result from the proposed maintenance activity. Contrary to this, the licensee identified that they failed to adequately assess the risk associated with leaving the common ESGR room door open for two hours. The inspectors determined that the finding was more than minor because it adversely impacted the Mitigating Systems cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The senior reactor analysist determined that this violation was not greater than Green because the increase in core damage frequency was <1E-6, as discussed in Section 4OA5.3. The inspectors determined that licensee correctly evaluated the finding and developed appropriate corrective action as documented in the licensees CAP as CR397720. |
| Site: | Surry  |
|---|---|
| Report | IR 05000280/2011002 Section 4OA7 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | D Mills G Kolcum G Mccoy J Nadel M Riches R Clagg T Kolb |
| INPO aspect | |
| ' | |
Finding - Surry - IR 05000280/2011002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Surry) @ 2011Q1
Self-Identified List (Surry)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||