05000277/FIN-2009004-03
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | The following violation of very low significance (Green) was identified by the licensee and is a violation of NRC requirements which meets the criteria of Section VI of the NRC Enforcement Policy for being dispositioned as a NCV: As documented in report section 40A3.2, LER 05000278/2009004-00 reported a condition prohibited by TS which was discovered when engineering personnel determined that the Unit 3 \'B\' HPSW 1ESW ventilation subsystem was rendered inoperable as a result of preventive maintenance performed on April 13, 2009. The TRM Section 3.11, Engineered Safeguards Compartment Cooling and Ventilation, required immediate compliance with the TS Actions for the inoperability of one HPSW subsystem if one HPSW I ESW pump structure ventilation subsystem is inoperable. TS 3.7.1, Condition A, required action to restore one inoperable HPSW subsystem to an operable status within seven days. TS 3.7.1, Condition B, required the plant be in Mode 3 within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> if Condition A is not met. Contrary to the above, between April 13 and July 5, 2009, the Unit 3 \'B\' HPSW I ESW ventilation subsystem was inoperable and TS 3.7.1 was not entered until the inoperability was discovered on July 3, 2009. PBAPS documented this issue in the CAP as IR 938565. The inspectors reviewed the PBAPS Risk-Informed Inspection Notebook Table 2and concluded that the HPSW I ESW pump structure ventilation system was not required to support HPSW and ESW pump core damage mitigation safety functions. A Region I senior reactor analyst verified this conclusion. Therefore, this issue was of very low (Green) safety significance, because of no impact on the safety function for either subsystem of the HPSW or ESW systems |
| Site: | Peach Bottom  |
|---|---|
| Report | IR 05000277/2009004 Section 4OA7 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | M Brown S Barr P Finney R Nimitz F Bower A Ziedonis P Krohn J Commisky |
| INPO aspect | |
| ' | |
Finding - Peach Bottom - IR 05000277/2009004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Peach Bottom) @ 2009Q3
Self-Identified List (Peach Bottom)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||