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Home > Nuclear Reactors > Operating Reactors > Oversight > Reactor Oversight Process

Browns Ferry 2

2Q/2008 Performance Indicators

Licensee's General Comments: none



Link to Notes

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 1.0 0 0 0 0 0
Critical hours 2208.0 1950.1 1180.7 1832.1 2124.2 2209.0 2183.0 2184.0
                 
Indicator value 0 0 0.9 1.0 1.0 1.0 0 0


Licensee Comments: none



Link to Notes

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 0 0 0 3.0 0 0 0 0
Critical hours 2208.0 1950.1 1180.7 1832.1 2124.2 2209.0 2183.0 2184.0
                 
Indicator value 0.8 0.8 0 2.9 3.0 2.9 2.5 0

Licensee Comments: none





Link to Notes

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





Link to Notes

Safety System Functional Failures (BWR) 3Q/06 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08
Safety System Functional Failures 0 0 0 0 0 0 0 0
                 
Indicator value 0 0 0 0 0 0 0 0

Licensee Comments: none





Link to Notes

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) -3.30E-08 -3.30E-08 -2.80E-08 2.10E-08 2.10E-08 2.50E-08 1.10E-08 1.70E-08
URI (ΔCDF) -3.10E-07 -3.10E-07 -3.10E-07 -4.70E-07 -4.70E-07 -6.20E-07 -4.70E-07 -4.70E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -3.43E-07 -3.43E-07 -3.38E-07 -4.49E-07 -4.49E-07 -5.95E-07 -4.59E-07 -4.53E-07

Licensee Comments: none





Link to Notes

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) -9.20E-09 -1.20E-08 -1.20E-08 -1.20E-08 -1.20E-08 -1.20E-08 3.90E-08 1.00E-07
URI (ΔCDF) 2.80E-09 2.80E-09 2.80E-09 2.80E-09 2.80E-09 2.80E-09 2.80E-09 2.80E-09
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -6.40E-09 -9.20E-09 -9.20E-09 -9.20E-09 -9.20E-09 -9.20E-09 4.18E-08 1.03E-07

Licensee Comments: none





Link to Notes

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) -2.00E-08 -2.00E-08 -7.00E-09 -8.30E-09 -8.20E-09 -1.30E-08 -1.40E-08 -2.50E-09
URI (ΔCDF) -4.20E-08 -4.00E-08 -4.40E-08 -4.40E-08 -4.40E-08 -4.40E-08 -4.40E-08 -4.40E-08
PLE NO NO NO NO NO NO NO NO
                 
Indicator value -6.20E-08 -6.00E-08 -5.10E-08 -5.23E-08 -5.22E-08 -5.70E-08 -5.80E-08 -4.65E-08

Licensee Comments: none





Link to Notes

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) 2.50E-07 2.80E-07 3.30E-07 3.20E-07 3.60E-07 2.70E-07 2.70E-07 -2.50E-08
URI (ΔCDF) -9.60E-08 -9.80E-08 -8.40E-08 -8.70E-08 -8.80E-08 -8.80E-08 -8.30E-08 -7.70E-08
PLE NO NO NO NO NO NO NO NO
                 
Indicator value 1.54E-07 1.82E-07 2.46E-07 2.33E-07 2.72E-07 1.82E-07 1.87E-07 -1.02E-07

Licensee Comments: none





Link to Notes

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) 1.30E-07 6.80E-08 1.30E-07 1.30E-07 1.60E-07 1.60E-07 1.60E-07 1.30E-07
URI (ΔCDF) 5.80E-08 5.20E-08 1.10E-07 1.00E-07 1.00E-07 1.00E-07 1.00E-07 1.10E-07
PLE NO NO NO NO NO NO NO NO
                 
Indicator value 1.88E-07 1.20E-07 2.40E-07 2.30E-07 2.60E-07 2.60E-07 2.60E-07 2.40E-07

Licensee Comments: none





Link to Notes

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 0.000036 0.000036 0.000034 0.000036 0.000054 0.000045 0.000087 0.000045 N/A N/A 0.000047 0.000035
Technical specification limit 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2
                         
Indicator value 0 0 0 0 0 0 0 0 N/A N/A 0 0
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 0.000034 0.000040 0.000033 0.000034 0.000042 0.000036 0.000083 0.000038 0.000051 0.000066 0.000034 0.000047
Technical specification limit 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2
                         
Indicator value 0 0 0 0 0 0 0 0 0 0 0 0

Licensee Comments: none





Link to Notes

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 2.020 1.880 2.410 2.350 1.860 1.880 2.160 1.930 0 1.330 1.710 1.830
Technical specification limit 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0
                         
Indicator value 6.7 6.3 8.0 7.8 6.2 6.3 7.2 6.4 0 4.4 5.7 6.1
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 1.740 1.820 1.740 1.660 1.640 1.610 1.590 1.590 1.590 1.530 1.530 1.560
Technical specification limit 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0
                         
Indicator value 5.8 6.1 5.8 5.5 5.5 5.4 5.3 5.3 5.3 5.1 5.1 5.2

Licensee Comments: none





Link to Notes

Drill/Exercise Performance 3Q/06 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08
Successful opportunities 44.0 24.0 0 7.0 8.0 55.0 6.0 3.0
Total opportunities 44.0 24.0 0 8.0 8.0 56.0 6.0 3.0
                 
Indicator value 97.8% 98.9% 98.9% 98.3% 98.3% 98.1% 98.1% 98.7%

Licensee Comments: none





Link to Notes

ERO Drill Participation 3Q/06 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08
Participating Key personnel 69.0 68.0 63.0 66.0 66.0 68.0 62.0 56.0
Total Key personnel 69.0 68.0 65.0 67.0 67.0 68.0 64.0 61.0
                 
Indicator value 100.0% 100.0% 96.9% 98.5% 98.5% 100.0% 96.9% 91.8%

Licensee Comments: none





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Alert & Notification System 3Q/06 4Q/06 1Q/07 2Q/07 3Q/07 4Q/07 1Q/08 2Q/08
Successful siren-tests 793 798 797 795 798 698 999 596
Total sirens-tests 800 800 800 800 800 700 1000 600
                 
Indicator value 99.6% 99.6% 99.5% 99.5% 99.6% 99.6% 99.7% 99.7%

Licensee Comments: none





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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





Link to Notes

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





Physical Protection information not publicly available.


 
 
 
 

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Last Modified: August 4, 2008