05000277/FIN-2011005-04
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | TS LCO 3.5.1, Condition A, requires that one inoperable low pressure ECCS injection subsystem should be restored to an OPERABLE status within seven days during operational modes 1 and 2, or requires action to place the unit in operational mode 3 within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. Contrary to the above, the \'D\' LPCI pump was inoperable during a period of time between April27, 2O1O, and October2, 2011. Specifically\' PBAPS determined that the leaking relief valve body, as identified on April 27,2010, could have become detached from the \'D\' RHR suction piping during the worst case design basis seismic event. This condition would result in the \'D\' RHR pump being inop6rable, thereby affecting the RHR LPCI function. Because the \'B\' RHR pump was unaffected by this even-t, there was no total loss of the \'B\' LPCI train safety function. The inspectors determined that this event screens to Green using the Table 4b seismic screening criteria in Attachment 4 of IMC 0609, SDP. Because this finding is of very low safety significance and has been entered into Exelon\'s CAP under lR i264g09, this violation is being treated as a Green, licensee-identified NCV consistent with the NRC Enforcement Policy |
| Site: | Peach Bottom  |
|---|---|
| Report | IR 05000277/2011005 Section 4OA7 |
| Date counted | Dec 31, 2011 (2011Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | E Miller J Tomlinson K Young P Krohn R Nimitz S Barr S Hansell A Ziedonis |
| INPO aspect | |
| ' | |
Finding - Peach Bottom - IR 05000277/2011005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Peach Bottom) @ 2011Q4
Self-Identified List (Peach Bottom)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||