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Licensee's General Comments: none
| Unplanned Scrams per 7000 Critical Hrs | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Unplanned scrams | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 0 |
| Critical hours | 2208.0 | 2209.0 | 2159.0 | 1835.1 | 1536.0 | 1922.8 | 2047.0 | 2184.0 |
| Indicator value | 0.9 | 0 | 0 | 0 | 0 | 0 | 1.0 | 0.9 |
Licensee Comments: none
| Unplanned Power Changes per 7000 Critical Hrs | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Unplanned power changes | 1.0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 |
| Critical hours | 2208.0 | 2209.0 | 2159.0 | 1835.1 | 1536.0 | 1922.8 | 2047.0 | 2184.0 |
| Indicator value | 2.7 | 0.9 | 0.8 | 1.7 | 0.9 | 0.9 | 1.0 | 0 |
Licensee Comments:
2Q/08: Unit 3 entered a planned Short Notice outage 6/27/08 to perform a balance shot on the # 9 turbine bearing after elevated vibrations started increasing after a grid instability event.
| Unplanned Scrams with Complications | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Scrams with complications | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Indicator value | 0.0 | 0.0 | 0.0 | 0.0 |
Licensee Comments: none
| Safety System Functional Failures (PWR) | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Safety System Functional Failures | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indicator value | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
Licensee Comments: none
| Mitigating Systems Performance Index, Emergency AC Power System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | -3.20E-09 | 1.00E-08 | 1.30E-08 | 1.30E-08 | 1.30E-08 | 2.30E-09 | 2.30E-09 | 2.90E-09 |
| URI (ΔCDF) | -2.90E-08 | -2.90E-08 | -2.90E-08 | -2.90E-08 | -2.90E-08 | -1.30E-08 | -1.30E-08 | 1.30E-08 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -3.22E-08 | -1.90E-08 | -1.60E-08 | -1.60E-08 | -1.60E-08 | -1.07E-08 | -1.07E-08 | 1.59E-08 |
Licensee Comments:
2Q/08: One load run demand failure in April - discovered to be unable to run for its mission time. This was due to a one-inch hole discovered in the 3A EDG radiator (due to corrosion degradation.)
| Mitigating Systems Performance Index, High Pressure Injection System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | -6.20E-10 | -6.20E-10 | -6.10E-10 | -2.30E-09 | -2.90E-09 | -2.00E-10 | -1.70E-10 | -2.40E-10 |
| URI (ΔCDF) | 4.80E-08 | 4.90E-08 | 4.90E-08 | 4.90E-08 | 2.30E-08 | 1.30E-09 | 1.30E-09 | 1.30E-09 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 4.74E-08 | 4.84E-08 | 4.84E-08 | 4.67E-08 | 2.01E-08 | 1.10E-09 | 1.13E-09 | 1.06E-09 |
Licensee Comments:
2Q/08: Changed PRA Parameter(s). The opposite-unit pump trains were also added to the trains/segments tracked for unavailability, due to changes in the PRA model. Also some components were removed from MSPI tracking due to their low risk significance.
1Q/08: Changed PRA Parameter(s).
4Q/07: Changed PRA Parameter(s).
3Q/07: Changed PRA Parameter(s).
2Q/07: Changed PRA Parameter(s).
1Q/07: Changed PRA Parameter(s).
4Q/06: Changed PRA Parameter(s).
3Q/06: Changed PRA Parameter(s).
2Q/06: Changed PRA Parameter(s).
| Mitigating Systems Performance Index, Heat Removal System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | 4.00E-08 | 8.10E-09 | 8.10E-09 | 8.30E-09 | 8.80E-09 | 4.10E-09 | 3.80E-09 | 2.20E-09 |
| URI (ΔCDF) | 1.60E-07 | 1.60E-07 | 1.60E-07 | 1.60E-07 | 1.60E-07 | 3.60E-08 | 3.70E-08 | 3.70E-08 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 2.00E-07 | 1.68E-07 | 1.68E-07 | 1.68E-07 | 1.69E-07 | 4.01E-08 | 4.08E-08 | 3.92E-08 |
Licensee Comments:
2Q/08: Changed PRA Parameter(s). The number of unavailability trains was changed from 2 to 3, one for each pump, due to a change in the PRA model.
1Q/08: Changed PRA Parameter(s).
4Q/07: Changed PRA Parameter(s).
3Q/07: Changed PRA Parameter(s).
2Q/07: Changed PRA Parameter(s).
1Q/07: Changed PRA Parameter(s).
4Q/06: Changed PRA Parameter(s).
3Q/06: Changed PRA Parameter(s).
2Q/06: Changed PRA Parameter(s).
| Mitigating Systems Performance Index, Residual Heat Removal System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | 2.00E-09 | 1.90E-09 | 1.90E-09 | 1.90E-09 | 6.30E-10 | -4.50E-10 | -4.50E-10 | -3.50E-10 |
| URI (ΔCDF) | -1.20E-08 | -1.20E-08 | -1.20E-08 | -1.30E-08 | -1.30E-08 | -1.70E-09 | -1.80E-09 | -1.80E-09 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | -1.00E-08 | -1.01E-08 | -1.01E-08 | -1.11E-08 | -1.24E-08 | -2.15E-09 | -2.25E-09 | -2.15E-09 |
Licensee Comments: none
| Mitigating Systems Performance Index, Cooling Water Systems | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| UAI (ΔCDF) | 7.30E-08 | 6.00E-08 | 6.40E-08 | 6.30E-08 | 6.40E-08 | 1.20E-09 | 1.80E-09 | 1.90E-09 |
| URI (ΔCDF) | 5.00E-09 | 1.60E-09 | 1.60E-09 | 1.60E-09 | 1.70E-09 | -4.20E-11 | 2.70E-10 | 2.70E-10 |
| PLE | NO | NO | NO | NO | NO | NO | NO | NO |
| Indicator value | 7.80E-08 | 6.16E-08 | 6.56E-08 | 6.46E-08 | 6.57E-08 | 1.16E-09 | 2.07E-09 | 2.17E-09 |
Licensee Comments:
3Q/06: For 3 C ICW pump 3P9C demand & run time FVURC & URPC data were transposed and changed to correct values. No effect on PI colors.
| Reactor Coolant System Activity | 7/06 | 8/06 | 9/06 | 10/06 | 11/06 | 12/06 | 1/07 | 2/07 | 3/07 | 4/07 | 5/07 | 6/07 |
| Maximum activity | 0.000641 | 0.000702 | 0.000793 | 0.000610 | 0.000580 | 0.000824 | 0.000671 | 0.000763 | 0.000824 | 0.000855 | 0.000946 | 0.000732 |
| Technical specification limit | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Indicator value | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Reactor Coolant System Activity | 7/07 | 8/07 | 9/07 | 10/07 | 11/07 | 12/07 | 1/08 | 2/08 | 3/08 | 4/08 | 5/08 | 6/08 |
| Maximum activity | 0.000885 | 0.001040 | 0.000763 | 0.000488 | 0.001160 | 0.001530 | 0.001640 | 0.001800 | 0.002410 | 0.001730 | 0.003060 | 0.001800 |
| Technical specification limit | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Indicator value | 0.1 | 0.1 | 0.1 | 0 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.2 |
Licensee Comments: none
| Reactor Coolant System Leakage | 7/06 | 8/06 | 9/06 | 10/06 | 11/06 | 12/06 | 1/07 | 2/07 | 3/07 | 4/07 | 5/07 | 6/07 |
| Maximum leakage | 0.030 | 0.040 | 0.050 | 0.060 | 0.050 | 0.060 | 0.040 | 0.050 | 0.070 | 0.050 | 0.050 | 0.060 |
| Technical specification limit | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 |
| Indicator value | 0.3 | 0.4 | 0.5 | 0.6 | 0.5 | 0.6 | 0.4 | 0.5 | 0.7 | 0.5 | 0.5 | 0.6 |
| Reactor Coolant System Leakage | 7/07 | 8/07 | 9/07 | 10/07 | 11/07 | 12/07 | 1/08 | 2/08 | 3/08 | 4/08 | 5/08 | 6/08 |
| Maximum leakage | 0.070 | 0.050 | 0.040 | 0.160 | 0.160 | 0.130 | 0.120 | 0.140 | 0.110 | 0.140 | 0.140 | 0.130 |
| Technical specification limit | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 |
| Indicator value | 0.7 | 0.5 | 0.4 | 1.6 | 1.6 | 1.3 | 1.2 | 1.4 | 1.1 | 1.4 | 1.4 | 1.3 |
Licensee Comments: none
| Drill/Exercise Performance | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Successful opportunities | 50.0 | 22.0 | 72.0 | 34.0 | 30.0 | 36.0 | 38.0 | 55.0 |
| Total opportunities | 51.0 | 22.0 | 79.0 | 35.0 | 30.0 | 38.0 | 49.0 | 56.0 |
| Indicator value | 96.7% | 96.9% | 96.1% | 95.9% | 96.3% | 96.2% | 92.8% | 93.6% |
Licensee Comments: none
| ERO Drill Participation | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Participating Key personnel | 83.0 | 84.0 | 83.0 | 78.0 | 83.0 | 82.0 | 80.0 | 85.0 |
| Total Key personnel | 84.0 | 84.0 | 83.0 | 79.0 | 83.0 | 82.0 | 80.0 | 85.0 |
| Indicator value | 98.8% | 100.0% | 100.0% | 98.7% | 100.0% | 100.0% | 100.0% | 100.0% |
Licensee Comments: none
| Alert & Notification System | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| Successful siren-tests | 328 | 374 | 328 | 375 | 328 | 376 | 375 | 328 |
| Total sirens-tests | 329 | 376 | 329 | 376 | 329 | 376 | 376 | 329 |
| Indicator value | 99.8% | 99.7% | 99.7% | 99.6% | 99.6% | 99.8% | 99.8% | 99.8% |
Licensee Comments: none
| Occupational Exposure Control Effectiveness | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| High radiation area occurrences | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Very high radiation area occurrences | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Unintended exposure occurrences | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indicator value | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Licensee Comments: none
| RETS/ODCM Radiological Effluent | 3Q/06 | 4Q/06 | 1Q/07 | 2Q/07 | 3Q/07 | 4Q/07 | 1Q/08 | 2Q/08 |
| RETS/ODCM occurrences | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Indicator value | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Licensee Comments: none
Action Matrix Summary |
Inspection Findings Summary |
PI Summary |
Reactor Oversight Process
Last Modified: August 4, 2008