05000237/FIN-2009004-07
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | 10 CFR 50.46(a)(3)(b)(1), Peak cladding temperature, requires that the calculated maximum fuel element cladding temperature shall not exceed 2200 F for the postulated loss-of-coolant accidents described within 10 CFR 50.46. Contrary to this requirement, from November 19, 2007 to April 24, 2008, the calculated peak cladding temperature for the Unit 2 Large Break Loss of Coolant Accident Analysis was 2230 F. This finding was entered into the licensees corrective action program as IR 767796. The licensee implemented an immediate corrective action that assigned an administrative 3 percent reduction (penalty) in the MAPLHGR Technical Specification core operating thermal limit to offset a non-conservative error identified in the calculation. This finding is of very low safety significance because the reactor core had been operating within the established 3 percent MAPLHGR administrative limit region since the reactor was restarted from the November 2007 refueling outage. |
| Site: | Dresden  |
|---|---|
| Report | IR 05000237/2009004 Section 4OA7 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | S Edmonds D Melendez-Colon W Slawinski C Phillips M Ring J Benjamin D Lords E Coffman C Scott |
| INPO aspect | |
| ' | |
Finding - Dresden - IR 05000237/2009004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Dresden) @ 2009Q3
Self-Identified List (Dresden)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||