ML21039A782
| ML21039A782 | |
| Person / Time | |
|---|---|
| Issue date: | 12/21/2016 |
| From: | Office of Nuclear Regulatory Research |
| To: | |
| John Lane | |
| Shared Package | |
| ML21039A780 | List: |
| References | |
| Download: ML21039A782 (3) | |
Text
Summary of SPAR Component Unreliability Data and Results 2015 Paramater Estimation Update Failures DemandsorHours dorh Components Distribution Analysis Type 5th Median Mean 95th
Error Factor (noteb)
AOV-FTO Air Operated Valve Fails To Open EPIX/RADS 78 201,147 d
1767 Beta EB/PL/KS 1.04E-05 2.44E-04 3.91E-04 1.27E-03 0.793 2.030E+03 5.2 1998--2015 Dec-2016 AOV-FTC Air Operated Valve Fails To Close EPIX/RADS 53 201,147 d
1767 Beta EB/PL/KS 2.24E-06 1.78E-04 3.63E-04 1.35E-03 0.547 1.510E+03 7.6 1998--2015 Dec-2016 AOV-FTOC Air Operated Valve Fails To Open EPIX/RADS 134 201,147 d
1767 Beta EB/PL/KS 4.49E-05 5.49E-04 7.78E-04 2.29E-03 1.050 1.350E+03 4.2 1998--2015 Dec-2016 AOV-FC Air Operated Valve Fails To Control EPIX/RADS 279 1,347,257,000 h
8784 Gamma EB/PL/KS 2.41E-08 1.77E-07 2.28E-07 6.08E-07 1.410 6.170E+06 3.4 1998--2015 Dec-2016 AOV-SOP Air Operated Valve Transfers Positions EPIX/RADS 132 1,347,257,000 h
8784 Gamma EB/PL/KS 7.28E-09 7.61E-08 1.05E-07 2.99E-07 1.140 1.090E+07 3.9 1998--2015 Dec-2016 AOV-ILS Air-Operated Valve Internal Leakage (Small)
EPIX/RADS 104 1,347,257,000 h
8784 Gamma JNID/IL 6.57E-08 7.75E-08 7.76E-08 9.07E-08 105.000 1.350E+09 1.2 1998--2015 Dec-2016 AOV-ILL Air-Operated Valve Internal Leakage (Rupture)
EPIX/RADS 104 1,347,257,000 h
8784 Gamma JNID/IL 1.66E-13 3.78E-10 1.55E-09 7.10E-09 0.300 1.933E+08 18.8 1998--2015 AOV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 AOV-ELS Air-Operated Valve External Leakage (Small)
EPIX/RADS 60 1,347,257,000 h
8784 Gamma JNID/IL 3.58E-08 4.46E-08 4.49E-08 5.47E-08 60.500 1.350E+09 1.2 1998--2015 Dec-2016 AOV-ELL Air-Operated Valve External Leakage (Rupture)
EPIX/RADS 60 1,347,257,000 h
8784 Gamma JNID/IL 3.36E-13 7.66E-10 3.14E-09 1.44E-08 0.300 9.545E+07 18.8 1998--2015 AOV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 CCW-AOV-OC CCW AOV Spuriously Transfers EPIX/RADS 25 178,863,300 h
1161 Gamma JNID/IL 9.94E-08 1.41E-07 1.43E-07 1.92E-07 25.500 1.790E+08 1.4 1998--2015 Dec-2016 IAS-AOV-OC Instrument Air System AOV Spuriously Transfers EPIX/RADS 0
7,056,096 h
45 Gamma JNID/IL 2.78E-10 3.22E-08 7.09E-08 2.72E-07 0.500 7.060E+06 8.4 1998--2015 Dec-2016 MOV-FTO Motor Operated Valve Fail To Open EPIX/RADS 293 740,890 d
6902 Beta EB/PL/KS 1.17E-04 3.76E-04 4.21E-04 8.76E-04 3.080 7.320E+03 2.3 1998--2015 Dec-2016 MOV-FTC Motor Operated Valve Fail To Close EPIX/RADS 234 740,890 d
6902 Beta EB/PL/KS 5.25E-05 2.76E-04 3.35E-04 8.17E-04 1.820 5.440E+03 3.0 1998--2015 Dec-2016 MOV-FTOC Motor Operated Valve Fails to Open/Close EPIX/RADS 558 740,890 d
6902 Beta EB/PL/KS 2.00E-04 7.20E-04 8.22E-04 1.78E-03 2.660 3.240E+03 2.5 1998--2015 Dec-2016 MOV-FC Motor Operated Feed Control Valve Fails To Operate EPIX/RADS 119 1,983,522,000 h
13001 Gamma EB/PL/KS 7.49E-09 4.69E-08 5.90E-08 1.50E-07 1.580 2.690E+07 3.2 1998--2015 Dec-2016 MOV-SOP Motor Operated Valve Fails To Remain Open EPIX/RADS 63 1,983,522,000 h
13001 Gamma EB/PL/KS 2.90E-10 1.69E-08 3.24E-08 1.17E-07 0.593 1.830E+07 6.9 1998--2015 Dec-2016 MOV-ILS Motor Operated Valve Internal Leakage (Small)
EPIX/RADS 141 1,983,522,000 h
13001 Gamma EB/PL/KS 1.66E-09 4.58E-08 7.58E-08 2.52E-07 0.747 9.860E+06 5.5 1998--2015 Dec-2016 MOV-ILL Motor Operated Valve Internal Leakage (Rupture)
EPIX/RADS 141 1,983,522,000 h
13001 Gamma EB/PL/KS 1.62E-13 3.70E-10 1.52E-09 6.93E-09 0.300 1.979E+08 18.8 1998--2015 MOV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 MOV-ELS Motor Operated Valve External Leakage (Small)
EPIX/RADS 51 1,983,522,000 h
13001 Gamma EB/PL/KS 9.56E-11 1.21E-08 2.71E-08 1.05E-07 0.490 1.810E+07 8.7 1998--2015 Dec-2016 MOV-ELL Motor Operated Valve External Leakage (Rupture)
EPIX/RADS 51 1,983,522,000 h
13001 Gamma EB/PL/KS 2.03E-13 4.62E-10 1.90E-09 8.68E-09 0.300 1.581E+08 18.8 1998--2015 MOV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 MOV-FTO-BFV Butterfly Valve Fail To Open EPIX/RADS 27 109,522 d
961 Beta JNID/IL 1.79E-04 2.49E-04 2.51E-04 3.36E-04 27.500 1.090E+05 1.3 1998--2015 Dec-2016 MOV-FTC-BFV Butterfly Valve Fail To Close EPIX/RADS 34 109,522 d
961 Beta EB/PL/KS 2.30E-05 2.45E-04 3.38E-04 9.68E-04 1.130 3.350E+03 4.0 1998--2015 Dec-2016 MOV-FTOC-BFV Butterfly Valve Fail To Open/Close EPIX/RADS 65 109,522 d
961 Beta EB/PL/KS 3.84E-05 4.98E-04 7.14E-04 2.12E-03 1.020 1.430E+03 4.3 1998--2015 Dec-2016 CCW-BFV-OC CCW Butterfly Valve Spuriously Transfers EPIX/RADS 6
106,466,800 h
708 Gamma JNID/IL 2.78E-08 5.82E-08 6.11E-08 1.05E-07 6.500 1.060E+08 1.8 1998--2015 Dec-2016 CCW-MOV-OC CCW MOV Spuriously Transfers EPIX/RADS 6
223,471,400 h
1443 Gamma JNID/IL 1.32E-08 2.77E-08 2.91E-08 5.01E-08 6.500 2.230E+08 1.8 1998--2015 Dec-2016 SWS-MOV-OC Standby Service Water Motor Operated Valve Spuriously Transfers EPIX/RADS 3
73,067,170 h
495 Gamma JNID/IL 1.48E-08 4.34E-08 4.79E-08 9.62E-08 3.500 7.310E+07 2.2 1998--2015 Dec-2016 HOV-FTOC Hydraulic Operated Valve Fails To Open EPIX/RADS 26 19,863 d
230 Beta JNID/IL 9.40E-04 1.32E-03 1.33E-03 1.79E-03 26.500 1.980E+04 1.4 1998--2015 Dec-2016 HOV-FC Hydraulic Valve Fail To Control EPIX/RADS 42 93,083,360 h
601 Gamma JNID/IL 3.48E-07 4.53E-07 4.57E-07 5.77E-07 42.500 9.310E+07 1.3 1998--2015 Dec-2016 HOV-SOP Hydraulic valve spurios operation EPIX/RADS 17 93,083,360 h
601 Gamma JNID/IL 1.21E-07 1.84E-07 1.88E-07 2.67E-07 17.500 9.310E+07 1.5 1998--2015 Dec-2016 HOV-ILS Hydraulic Operated Valve Internal Leakage (Small)
EPIX/RADS 4
93,083,360 h
601 Gamma JNID/IL 1.79E-08 4.48E-08 4.83E-08 9.09E-08 4.500 9.310E+07 2.0 1998--2015 Dec-2016 HOV-ILL Hydraulic Operated Valve Internal Leakage (Rupture)
EPIX/RADS 4
93,083,360 h
601 Gamma JNID/IL 1.03E-13 2.35E-10 9.66E-10 4.42E-09 0.300 3.106E+08 18.8 1998--2015 HOV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 HOV-ELS Hydraulic Operated Valve External Leakage (Small)
EPIX/RADS 12 93,083,360 h
601 Gamma JNID/IL 7.85E-08 1.31E-07 1.34E-07 2.02E-07 12.500 9.310E+07 1.5 1998--2015 Dec-2016 HOV-ELL Hydraulic Operated Valve External Leakage (Rupture)
EPIX/RADS 12 93,083,360 h
601 Gamma JNID/IL 1.00E-12 2.29E-09 9.38E-09 4.29E-08 0.300 3.198E+07 18.8 1998--2015 HOV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 SOV-FTOC Solenoid Operated Valve Fails To Open EPIX/RADS 23 33,317 d
759 Beta JNID/IL 4.84E-04 6.95E-04 7.05E-04 9.60E-04 23.500 3.330E+04 1.4 1998--2015 Dec-2016 SOV-FC Solenoid Operated Valve Fails To Control EPIX/RADS 58 143,582,100 h
1161 Gamma JNID/IL 3.23E-07 4.04E-07 4.07E-07 4.97E-07 58.500 1.440E+08 1.2 1998--2015 Dec-2016 SOV-SOP Solenoid-Operated Valve Spuriously Open or Close EPIX/RADS 9
143,582,100 h
1161 Gamma JNID/IL 3.51E-08 6.37E-08 6.62E-08 1.05E-07 9.500 1.440E+08 1.6 1998--2015 Dec-2016 SOV-ILS Solenoid Operated Valve Internal Leakage (Small)
EPIX/RADS 20 143,582,100 h
1161 Gamma JNID/IL 9.49E-08 1.40E-07 1.43E-07 1.98E-07 20.500 1.440E+08 1.4 1998--2015 Dec-2016 SOV-ILL Solenoid Operated Valve Internal Leakage (Rupture)
EPIX/RADS 20 143,582,100 h
1161 Gamma JNID/IL 3.06E-13 6.97E-10 2.86E-09 1.31E-08 0.300 1.049E+08 18.8 1998--2015 SOV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 SOV-ELS Solenoid Operated Valve External Leakage (Small)
EPIX/RADS 3
143,582,100 h
1161 Gamma JNID/IL 7.53E-09 2.20E-08 2.44E-08 4.88E-08 3.500 1.440E+08 2.2 1998--2015 Dec-2016 SOV-ELL Solenoid Operated Valve External Leakage (Rupture)
EPIX/RADS 3
143,582,100 h
1161 Gamma JNID/IL 1.83E-13 4.16E-10 1.71E-09 7.81E-09 0.300 1.756E+08 18.8 1998--2015 SOV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 ExplosiveOperated Valve(EOV)
EOV-FTO Explosive Valve Fails To Open EPIX/RADS 3
713 d
57 Beta JNID/IL 1.52E-03 4.44E-03 4.90E-03 9.83E-03 3.500 7.110E+02 2.2 1998--2015 Dec-2016 VBV-FTO Vacuum Breaker Valve Fail to Open EPIX/RADS 2
27,842 d
167 Beta JNID/IL 2.06E-05 7.83E-05 8.98E-05 1.99E-04 2.500 2.780E+04 2.5 1998--2015 Dec-2016 VBV-FTC Vacuum breaker fails to close EPIX/RADS 6
27,842 d
167 Beta EB/PL/KS 4.03E-06 1.27E-04 2.15E-04 7.25E-04 0.715 3.330E+03 5.7 1998--2015 Dec-2016 VBV-FTOC Vacuum Breaker Valve Fails to Open/Close EPIX/RADS 8
27,842 d
167 Beta EB/PL/KS 5.55E-06 1.94E-04 3.37E-04 1.15E-03 0.690 2.050E+03 5.9 1998--2015 Dec-2016 VBV-SOP Vacuum Breaker Fails Open EPIX/RADS 1
52,796,540 h
342 Gamma JNID/IL 3.33E-09 2.24E-08 2.84E-08 7.40E-08 1.500 5.280E+07 3.3 1998--2015 Dec-2016 VBV-ILS Vacuum Breaker Valve Internal Leakage (Small)
EPIX/RADS 15 52,796,540 h
342 Gamma JNID/IL 1.83E-07 2.87E-07 2.94E-07 4.26E-07 15.500 5.280E+07 1.5 1998--2015 Dec-2016 VBV-ILL Vacuum Breaker Valve Internal Leakage (Rupture)
EPIX/RADS 15 52,796,540 h
342 Gamma JNID/IL 6.29E-13 1.43E-09 5.88E-09 2.69E-08 0.300 5.102E+07 18.8 1998--2015 VBV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 TBV-FTO Turbine Bypass Valve Fail to Open EPIX/RADS 8
2,725 d
73 Beta JNID/IL 1.59E-03 2.99E-03 3.12E-03 5.05E-03 8.500 2.720E+03 1.7 1998--2015 Dec-2016 TBV-FTC Turbine Bypass Valve Fails to Close EPIX/RADS 0
2,725 d
73 Beta JNID/IL 7.20E-07 8.33E-05 1.83E-04 7.03E-04 0.500 2.730E+03 8.4 1998--2015 Dec-2016 TBV-FTOC Turbine Bypass Valve Fail to Open/Close EPIX/RADS 8
2,725 d
73 Beta JNID/IL 1.59E-03 2.99E-03 3.12E-03 5.05E-03 8.500 2.720E+03 1.7 1998--2015 Dec-2016 TBV-FC Turbine Bypass Valve Fails To Control EPIX/RADS 14 23,964,260 h
156 Gamma JNID/IL 3.69E-07 5.90E-07 6.05E-07 8.87E-07 14.500 2.400E+07 1.5 1998--2015 Dec-2016 MSV-FTOC Main Steam Isolation Valve Fails to Open/Close EPIX/RADS 34 38,629 d
419 Beta JNID/IL 6.59E-04 8.84E-04 8.93E-04 1.16E-03 34.500 3.860E+04 1.3 1998--2015 Dec-2016 MSV-SOP Main Steam Isolation Fails To Remain Open EPIX/RADS 25 79,241,950 h
513 Gamma EB/PL/KS 1.44E-09 1.45E-07 3.10E-07 1.18E-06 0.516 1.660E+06 8.1 1998--2015 Dec-2016 MSV-ILS Main Steam Isolation Internal Leakage (Small)
EPIX/RADS 63 79,241,950 h
513 Gamma JNID/IL 6.44E-07 7.98E-07 8.01E-07 9.74E-07 63.500 7.920E+07 1.2 1998--2015 Dec-2016 MSV-ILL Main Steam Isolation Internal Leakage (Rupture)
EPIX/RADS 63 79,241,950 h
513 Gamma JNID/IL 1.71E-12 3.91E-09 1.60E-08 7.33E-08 0.300 1.873E+07 18.8 1998--2015 MSV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 MSV-ELS Main Steam Isolation External Leakage (Small)
EPIX/RADS 2
79,241,950 h
513 Gamma JNID/IL 7.23E-09 2.75E-08 3.15E-08 6.99E-08 2.500 7.920E+07 2.5 1998--2015 Dec-2016 MSV-ELL Main Steam Isolation External Leakage (Rupture)
EPIX/RADS 2
79,241,950 h
513 Gamma JNID/IL 2.36E-13 5.38E-10 2.21E-09 1.01E-08 0.300 1.361E+08 18.8 1998--2015 MSV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 CKV-FTO Check Valve Fails To Open Fails To Open EPIX/RADS 0
54,126 d
496 Beta JNID/IL 3.63E-08 4.20E-06 9.24E-06 3.55E-05 0.500 5.410E+04 8.4 1998--2015 Dec-2016 CKV-FTC Check Valve Fails To Close EPIX/RADS 8
54,126 d
496 Beta JNID/IL 8.01E-05 1.51E-04 1.57E-04 2.55E-04 8.500 5.410E+04 1.7 1998--2015 Dec-2016 CKV-SO Check Valve Fails to Remain Open EPIX/RADS 2
977,258,600 h
6331 Gamma JNID/IL 5.86E-10 2.23E-09 2.56E-09 5.67E-09 2.500 9.770E+08 2.5 1998--2015 Dec-2016 CKV-SC Check Valve Fails to Remain Open (Spurious Close)
EPIX/RADS 5
977,258,600 h
6331 Gamma JNID/IL 2.34E-09 5.29E-09 5.63E-09 1.01E-08 5.500 9.770E+08 1.9 1998--2015 Dec-2016 CKV-ILS Check Valve Internal Leakage (Small)
EPIX/RADS 143 977,258,600 h
6331 Gamma EB/PL/KS 1.14E-09 1.00E-07 2.08E-07 7.80E-07 0.534 2.570E+06 7.8 1998--2015 Dec-2016 CKV-ILL Check Valve Internal Leakage (Rupture)
EPIX/RADS 143 977,258,600 h
6331 Gamma EB/PL/KS 4.45E-13 1.01E-09 4.16E-09 1.90E-08 0.300 7.212E+07 18.8 1998--2015 CKV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 CKV-ELS Check Valve External Leakage (Small)
EPIX/RADS 7
977,258,600 h
6331 Gamma JNID/IL 3.72E-09 7.34E-09 7.67E-09 1.28E-08 7.500 9.770E+08 1.7 1998--2015 Dec-2016 CKV-ELL Check Valve External Leakage (Rupture)
EPIX/RADS 7
977,258,600 h
6331 Gamma JNID/IL 5.75E-14 1.31E-10 5.37E-10 2.46E-09 0.300 5.588E+08 18.8 1998--2015 CKV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 XVM-FTOC Manual Valve Fails To Open EPIX/RADS 1
3,270 d
66 Beta JNID/IL 5.38E-05 3.62E-04 4.59E-04 1.19E-03 1.500 3.270E+03 3.3 1998--2015 Dec-2016 XVM-SOP Manual Valve Spurious Transfer EPIX/RADS 6
128,295,300 h
866 Gamma JNID/IL 2.30E-08 4.82E-08 5.07E-08 8.74E-08 6.500 1.280E+08 1.8 1998--2015 Dec-2016 XVM-ILS Manual Valve Internal Leakage (Small)
EPIX/RADS 7
128,295,300 h
866 Gamma EB/PL/KS 9.97E-10 3.89E-08 6.88E-08 2.38E-07 0.667 9.700E+06 6.1 1998--2015 Dec-2016 XVM-ILL Manual Valve Internal Leakage (Rupture)
EPIX/RADS 7
128,295,300 h
866 Gamma EB/PL/KS 1.47E-13 3.35E-10 1.38E-09 6.29E-09 0.300 2.180E+08 18.8 1998--2015 XVM leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 XVM-ELS Manual Valve External Leakage (Small)
EPIX/RADS 14 128,295,300 h
866 Gamma JNID/IL 6.92E-08 1.11E-07 1.13E-07 1.66E-07 14.500 1.280E+08 1.5 1998--2015 Dec-2016 XVM-ELL Manual Valve External Leakage (Rupture)
EPIX/RADS 14 128,295,300 h
866 Gamma JNID/IL 8.47E-13 1.93E-09 7.91E-09 3.62E-08 0.300 3.793E+07 18.8 1998--2015 XVM leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 SWS-XVM-OC Standby Service Water Manual Valve Spuriously Transfers EPIX/RADS 2
18,346,180 h
121 Gamma JNID/IL 3.13E-08 1.19E-07 1.36E-07 3.02E-07 2.500 1.830E+07 2.5 1998--2015 Dec-2016 FCV-FTOC Flow Control Valve Fails To Open/Close EPIX/RADS 5
12,488 d
96 Beta JNID/IL 1.83E-04 4.13E-04 4.40E-04 7.87E-04 5.500 1.250E+04 1.9 1998--2015 Dec-2016 FCV-FC Flow Control Valve Fails To Control EPIX/RADS 16 88,861,090 h
574 Gamma JNID/IL 1.17E-07 1.82E-07 1.86E-07 2.67E-07 16.500 8.890E+07 1.5 1998--2015 Dec-2016 FCV-SO Flow Control Valve Transfers Positions EPIX/RADS 10 88,861,090 h
574 Gamma JNID/IL 6.52E-08 1.14E-07 1.18E-07 1.84E-07 10.500 8.890E+07 1.6 1998--2015 Dec-2016 FRV-FO Feedwater Regulating Valve Fail To Operate EPIX/RADS 72 33,730,380 h
216 Gamma EB/PL/KS 3.08E-07 1.72E-06 2.10E-06 5.23E-06 1.730 8.220E+05 3.0 1998--2015 Dec-2016 MDP-SBY-FTS Motor Driven Pump Fails To Start, Normally Standby EPIX/RADS 351 482,206 d
1311 Beta EB/PL/KS 1.59E-04 6.78E-04 7.94E-04 1.83E-03 2.210 2.780E+03 2.7 1998--2015 Dec-2016 MDP-SBY-FTR<1H Motor Driven Pump Fails To Run, Early Term EPIX/RADS 48 437,647 h
1311 Gamma EB/PL/KS 3.94E-06 7.86E-05 1.22E-04 3.89E-04 0.844 6.910E+03 4.9 1998--2015 Dec-2016 MDP-SBY-FTR>1H Motor Driven Pump Fails To Run, Late Term EPIX/RADS 143 20,062,180 h
1311 Gamma EB/PL/KS 1.35E-07 6.28E-06 1.15E-05 4.07E-05 0.632 5.490E+04 6.5 1998--2015 Dec-2016 MDP-ELS Motor Driven Pump External Leakage (Small)
EPIX/RADS 105 347,850,600 h
2344 Gamma EB/PL/KS 9.46E-09 1.87E-07 2.91E-07 9.22E-07 0.847 2.920E+06 4.9 1998--2015 Dec-2016 MDP-ELL Motor Driven Pump External Leakage (Rupture)
EPIX/RADS 105 347,850,600 h
2344 Gamma EB/PL/KS 2.18E-12 4.97E-09 2.04E-08 9.32E-08 0.300 1.473E+07 18.8 1998--2015 MDP leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 MDP-NR-FTS Motor-driven pump Fail to Start, Normally Running EPIX/RADS 147 138,319 d
670 Beta EB/PL/KS 2.61E-04 9.52E-04 1.08E-03 2.37E-03 2.620 2.410E+03 2.5 1998--2015 Dec-2016 MDP-NR-FTR Motor-driven pump Fail to Run, Normally Running EPIX/RADS 225 59,582,350 h
664 Gamma EB/PL/KS 1.15E-06 3.43E-06 3.79E-06 7.68E-06 3.420 9.010E+05 2.2 1998--2015 Dec-2016 MDP-CCW-FTS CCW Motor-driven pump Fail to Start EPIX/RADS 69 88,693 h
291 Beta EB/PL/KS 5.86E-05 6.32E-04 8.78E-04 2.52E-03 1.120 1.280E+03 4.0 1998--2015 Dec-2016 MDP-CCW-FTR CCW Motor-driven pump Fail to Run (Yr-1)
EPIX/RADS 53 19,648,220 h
291 Gamma EB/PL/KS 2.87E-07 2.13E-06 2.76E-06 7.33E-06 1.400 5.090E+05 3.4 1998--2015 Dec-2016 MDP-SWS-FTS SWS Pump FTS EPIX/RADS 180 264,384 d
549 Beta EB/PL/KS 6.20E-05 6.17E-04 8.41E-04 2.38E-03 1.170 1.390E+03 3.9 1998--2015 Dec-2016 SWS-MDP-FS-NE SWS Pump Non-Enviro-FTS EPIX/RADS 149 249,957 h
446 Beta EB/PL/KS 5.67E-05 5.56E-04 7.55E-04 2.14E-03 1.180 1.560E+03 3.8 1998--2015 Dec-2016 SWS-MDP-FR-NE Service Water Motor-Driven Pump (Running) Fail to Run Non-ExEE (yr-1)
EPIX/RADS 2
16,692,670 h
446 Gamma JNID/IL 3.43E-08 1.30E-07 1.50E-07 3.31E-07 2.500 1.670E+07 2.5 1998--2015 Dec-2016 MDP-SWS-FTR SWS Pump FTR (hr-1)
EPIX/RADS 64 10,443,960 h
106 Gamma EB/PL/KS 4.14E-07 4.70E-06 6.56E-06 1.91E-05 1.090 1.660E+05 4.1 1998--2015 Dec-2016 NSW-MDP-FR Nuclear Service Water MDP Fails to Run EPIX/RADS 64 10,256,170 h
104 Gamma EB/PL/KS 4.34E-07 4.85E-06 6.72E-06 1.96E-05 1.100 1.630E+05 4.0 1998--2015 Dec-2016 MDP-FS-NE-SWS Service Water MDP Fail to Run, Non-Environmental EPIX/RADS 179 264,384 d
549 Beta EB/PL/KS 6.39E-05 6.18E-04 8.36E-04 2.36E-03 1.190 1.420E+03 3.8 1998--2015 Dec-2016 MDP-FR-NE-SWS Service Water MDP Fail to Run, Non-Environmental EPIX/RADS 151 26,944,240 h
548 Gamma EB/PL/KS 8.93E-07 4.69E-06 5.67E-06 1.39E-05 1.820 3.200E+05 3.0 1998--2015 Dec-2016 CSW-MDP-FR CSW Motor Driven Pump Fails to Run EPIX/RADS 25 3,654,539 h
32 Gamma JNID/IL 4.88E-06 6.90E-06 6.98E-06 9.41E-06 25.500 3.650E+06 1.4 1998--2015 Dec-2016 TDP-SBY-FTS Turbine Driven Pump Fails To Start (Pooled Systems),
Normally Standby EPIX/RADS 146 26,558 d
133 Beta EB/PL/KS 4.70E-04 4.47E-03 6.01E-03 1.69E-02 1.200 1.980E+02 3.8 1998--2015 Dec-2016 TDP-SBY-FTR<1H Turbine Driven Pump Fails To Run (Pooled Systems),
Early Term EPIX/RADS 61 18,025 h
133 Gamma EB/PL/KS 1.34E-04 2.43E-03 3.70E-03 1.16E-02 0.878 2.370E+02 4.8 1998--2015 Dec-2016 TDP-SBY-FTR>1H Turbine Driven Pump Fails To Run (Pooled Systems),
Late Term EPIX/RADS 23 11,205 h
133 Gamma JNID/IL 1.44E-03 2.07E-03 2.10E-03 2.86E-03 23.500 1.120E+04 1.4 1998--2015 Dec-2016 TDP-NR-FTS Turbine Driven Pump Fails To Start (Pooled Systems),
Normally Running EPIX/RADS 12 1,395 d
43 Beta EB/PL/KS 4.04E-04 6.25E-03 9.17E-03 2.81E-02 0.938 1.010E+02 4.5 1998--2015 Dec-2016 TDP-NR-FTR Turbine Driven Pump Fails To Run (Pooled Systems),
Normally Running EPIX/RADS 62 5,984,882 h
43 Gamma EB/PL/KS 1.43E-06 8.73E-06 1.09E-05 2.77E-05 1.610 1.480E+05 3.2 1998--2015 Dec-2016 TDP-ELS Turbine-Driven Pump External Leakage (Small)
EPIX/RADS 15 28,788,990 h
186 Gamma JNID/IL 3.35E-07 5.27E-07 5.38E-07 7.81E-07 15.500 2.880E+07 1.5 1998--2015 Dec-2016 TDP-ELL Turbine Bypass Valve External Leakage (Rupture)
EPIX/RADS 15 28,788,990 h
186 Gamma JNID/IL 4.03E-12 9.18E-09 3.77E-08 1.72E-07 0.300 7.966E+06 18.8 1998--2015 TDP leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 TDP-FS-NS-AFW AFW Turbine Driven Pump Fails To Start, Normally Standby EPIX/RADS 72 18,054 d
74 Beta EB/PL/KS 9.44E-05 2.62E-03 4.33E-03 1.43E-02 0.746 1.720E+02 5.5 1998--2015 Dec-2016 TDP-FR-E-AFW AFW Turbine Driven Pump Fails To Run, Early Term EPIX/RADS 40 12,076 h
74 Gamma EB/PL/KS 9.03E-05 2.26E-03 3.67E-03 1.20E-02 0.774 2.110E+02 5.3 1998--2015 Dec-2016 TDP-FR-L-AFW AFW Turbine Driven Pump Fails To Run, Late Term EPIX/RADS 13 9,283 h
74 Gamma JNID/IL 8.70E-04 1.42E-03 1.45E-03 2.16E-03 13.500 9.280E+03 1.5 1998--2015 Dec-2016 TDP-FS-NS-HCI-RCI HCI-RCI Turbine Driven Pump Fails To Start, Normally Standby EPIX/RADS 41 4,929 d
31 Beta EB/PL/KS 2.52E-03 7.90E-03 8.78E-03 1.81E-02 3.160 3.560E+02 2.3 1998--2015 Dec-2016 TDP-FR-E-HCI-RCI HCI Turbine Driven Pump Fails To Run, Early Term EPIX/RADS 21 5,949 h
59 Gamma EB/PL/KS 2.36E-04 2.68E-03 3.75E-03 1.09E-02 1.090 2.910E+02 4.1 1998--2015 Dec-2016 TDP-FR-L-HCI-RCI HCI-RCI Turbine Driven Pump Fails To Run, Late Term EPIX/RADS 10 1,922 h
59 Gamma EB/PL/KS 1.04E-03 4.67E-03 5.52E-03 1.29E-02 2.100 3.810E+02 2.8 1998--2015 Dec-2016 TDP-FS-NR-MFW MFW Turbine Driven Pump Fails To Start, Normally Running EPIX/RADS 62 5,984,882 d
43 Gamma EB/PL/KS 1.43E-06 8.73E-06 1.09E-05 2.77E-05 1.610 1.480E+05 3.2 1998--2015 Dec-2016 TDP-FR-NR-MFW MFW Turbine Driven Pump Fails To Run, Normally Running EPIX/RADS 62 5,984,882 h
43 Gamma EB/PL/KS 1.43E-06 8.73E-06 1.09E-05 2.77E-05 1.610 1.480E+05 3.2 1998--2015 Dec-2016 EDP-FTS Engine Driven Pump Fails To Start, Normally Standby EPIX/RADS 26 17,988 d
37 Beta EB/PL/KS 2.52E-05 1.19E-03 2.17E-03 7.68E-03 0.630 2.890E+02 6.5 1998--2015 Dec-2016 EDP-FTR<1H Engine Driven Pump Fails To Run, Early Term, Normally Standby EPIX/RADS 10 10,717 h
37 Gamma JNID/IL 5.42E-04 9.50E-04 9.80E-04 1.53E-03 10.500 1.070E+04 1.6 1998--2015 Dec-2016 EDP-FTR>1H Engine Driven Pump Fails To Run, Late Term, Normally Standby EPIX/RADS 11 5,820 h
37 Gamma JNID/IL 1.12E-03 1.92E-03 1.98E-03 3.02E-03 11.500 5.820E+03 1.6 1998--2015 Dec-2016 EDP-ELS Engine-Driven Pump External Leakage (Small)
EPIX/RADS 8
9,129,089 h
69 Gamma EB/PL/KS 5.15E-08 6.42E-07 9.12E-07 2.70E-06 1.040 1.140E+06 4.2 1998--2015 Dec-2016 EDP-ELL Engine Driven Pump External Leakage (Rupture)
EPIX/RADS 8
9,129,089 h
69 Gamma EB/PL/KS 6.83E-12 1.56E-08 6.38E-08 2.92E-07 0.300 4.699E+06 18.8 1998--2015 EDP leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 AFW-EDP-FTS AFW Engine-driven pump Fails to Start EPIX/RADS 3
1,275 d
5 Beta JNID/IL 8.52E-04 2.49E-03 2.74E-03 5.52E-03 3.500 1.270E+03 2.2 1998--2015 Dec-2016 AFW-EDP-FTR<1H AFW Engine-driven pump Fails to Run <1H EPIX/RADS 4
739 h
5 Gamma JNID/IL 2.25E-03 5.64E-03 6.09E-03 1.14E-02 4.500 7.390E+02 2.0 1998--2015 Dec-2016 AFW-EDP-FTR>1H AFW Engine-driven pump Fails to Run >1H EPIX/RADS 2
262 h
5 Gamma JNID/IL 2.19E-03 8.30E-03 9.53E-03 2.11E-02 2.500 2.620E+02 2.5 1998--2015 Dec-2016 PDP-NR-FTS Positive Displacement Pump Fails To Start, Normally Running EPIX/RADS 78 35,863 d
63 Beta EB/PL/KS 3.63E-04 2.13E-03 2.63E-03 6.63E-03 1.660 6.280E+02 3.1 1998--2015 Dec-2016 PDP-NR-FTR Positive Displacement Pump Fails To Run, Normally Running EPIX/RADS 71 2,905,081 h
60 Gamma EB/PL/KS 1.43E-06 2.49E-05 3.77E-05 1.17E-04 0.892 2.370E+04 4.7 1998--2015 Dec-2016 PDP-SBY-FTS Positive Displacement Pump Fails To Start, Normally Standby EPIX/RADS 16 10,799 d
72 Beta JNID/IL 9.65E-04 1.49E-03 1.53E-03 2.19E-03 16.500 1.080E+04 1.5 1998--2015 Dec-2016 PDP-SBY-FTR<1H Positive Displacement Pump Fails To Run, Early Term EPIX/RADS 2
4,699 h
72 Gamma JNID/IL 1.22E-04 4.63E-04 5.32E-04 1.18E-03 2.500 4.700E+03 2.5 1998--2015 Dec-2016 PDP-SBY-FTR>1H Positive Displacement Pump Fails To Run, Late Term EPIX/RADS 2
1,710 h
72 Gamma JNID/IL 3.35E-04 1.27E-03 1.46E-03 3.24E-03 2.500 1.710E+03 2.5 1998--2015 Dec-2016 PDP-ELS Positive Displacement Pump External Leakage (Small)
EPIX/RADS 28 26,271,740 h
175 Gamma JNID/IL 7.73E-07 1.07E-06 1.08E-06 1.44E-06 28.500 2.630E+07 1.3 1998--2015 Dec-2016 PDP-ELL Positive Displacement Pump External Leakage (Rupture)
EPIX/RADS 28 26,271,740 h
175 Gamma JNID/IL 8.09E-12 1.84E-08 7.56E-08 3.46E-07 0.300 3.968E+06 18.8 1998--2015 PDP leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 PumpVolute(PMP)
PMP-Volute Pump Volute Fails To Run (Driver Independent Centrifugal Pumps)
EPIX/RADS 25 158,885 h
207 Gamma JNID/IL 1.12E-04 1.58E-04 1.60E-04 2.16E-04 25.500 1.590E+05 1.4 1998--2015 Dec-2016 EDG-FTS Diesel Generator Fails To Start, Normally Standby EPIX/RADS 214 75,452 d
232 Beta EB/PL/KS 1.52E-03 2.78E-03 2.88E-03 4.60E-03 9.190 3.180E+03 1.7 1998--2015 Dec-2016 EDG-FTLR Diesel Generator Fails To Load And Run, Early EPIX/RADS 239 65,993 h
232 Gamma EB/PL/KS 1.14E-03 3.37E-03 3.72E-03 7.49E-03 3.470 9.330E+02 2.2 1998--2015 Dec-2016 EDG-FTR Diesel Generator Fails To Run, Late Term EPIX/RADS 184 133,976 h
232 Gamma EB/PL/KS 3.53E-04 1.33E-03 1.52E-03 3.36E-03 2.530 1.660E+03 2.5 1998--2015 Dec-2016 HTG-FTS Hydro Electric Turbine Generator Fails To Start EPIX/RADS 11 7,270 d
2 Beta JNID/IL 9.00E-04 1.54E-03 1.58E-03 2.42E-03 11.500 7.260E+03 1.6 1998--2015 Dec-2016 HTG-FTLR Hydro Electric Turbine Generator Fail To Run (< 1 Hour)
EPIX/RADS 7
4,629 h
2 Gamma JNID/IL 7.84E-04 1.55E-03 1.62E-03 2.70E-03 7.500 4.630E+03 1.7 1998--2015 Dec-2016 HTG-FTR Hydro Electric Turbine Generator Fail To Run (> 1 Hour)
EPIX/RADS 1
10,678 h
2 Gamma JNID/IL 1.64E-05 1.11E-04 1.40E-04 3.65E-04 1.500 1.070E+04 3.3 1998--2015 Dec-2016 CTG-FTS Gas Turbine Generator Fails To Start, Normally Standby EPIX/RADS 18 503 d
3 Beta EB/PL/KS 2.98E-03 3.73E-02 5.12E-02 1.48E-01 1.030 1.900E+01 4.0 1998--2015 Dec-2016 CTG-FTLR Gas Turbine Generator Fails To Load And Run, Early Term EPIX/RADS 2
432 d
2 Gamma JNID/IL 1.33E-03 5.04E-03 5.79E-03 1.28E-02 2.500 4.320E+02 2.5 1998--2015 Dec-2016 CTG-FTR Gas Turbine Generator Fails To Run, Late Term EPIX/RADS 5
648 h
2 Gamma JNID/IL 3.53E-03 7.98E-03 8.49E-03 1.52E-02 5.500 6.480E+02 1.9 1998--2015 Dec-2016 EDG-HCS-FTS HCS Generator Fail to Start EPIX/RADS 2
2,654 d
8 Beta JNID/IL 2.16E-04 8.20E-04 9.42E-04 2.09E-03 2.500 2.650E+03 2.5 1998--2015 Dec-2016 EDG-HCS-FTR HCS Generator Fail to Run EPIX/RADS 4
3,948 h
8 Gamma JNID/IL 4.21E-04 1.06E-03 1.14E-03 2.14E-03 4.500 3.950E+03 2.0 1998--2015 Dec-2016 EDG-SBO-FTS SBO Generator Fail to Start EPIX/RADS 12 419 d
4 Beta JNID/IL 1.75E-02 2.90E-02 2.98E-02 4.45E-02 12.500 4.080E+02 1.5 1998--2015 Dec-2016 EDG-SBO-FTR SBO Generator Fail to Run EPIX/RADS 2
1,668 h
4 Gamma JNID/IL 3.43E-04 1.30E-03 1.50E-03 3.31E-03 2.500 1.670E+03 2.5 1998--2015 Dec-2016 SRV-FTO Safety relief valve fails to open EPIX/RADS 23 9,720 d
440 Beta JNID/IL 1.66E-03 2.38E-03 2.42E-03 3.29E-03 23.500 9.700E+03 1.4 1998--2015 Dec-2016 SRV-FTC BWR ADS/SRV Fails To Reclose EPIX/RADS 8
9,720 d
440 Beta EB/PL/KS 9.42E-05 6.85E-04 8.86E-04 2.34E-03 1.420 1.610E+03 3.4 1998--2015 Dec-2016 SRV-FC Safety Relief Valve (BWR Only) Fails To Control EPIX/RADS 0
72,220,220 h
558 Gamma JNID/IL 2.72E-11 3.15E-09 6.92E-09 2.66E-08 0.500 7.220E+07 8.4 1998--2015 Dec-2016 SRV-SOP Safety Relief Valve (BWR Only) SPURIOUSLY OPENS EPIX/RADS 9
72,220,220 h
558 Gamma EB/PL/KS 6.03E-09 9.44E-08 1.40E-07 4.29E-07 0.935 6.680E+06 4.6 1998--2015 Dec-2016 SRV-SOP Safety Relief Valve (BWR Only) SPURIOUSLY OPENS EPIX/RADS 9
72,220,220 h
558 Gamma EB/PL/KS 6.03E-09 9.44E-08 1.40E-07 4.29E-07 0.935 6.680E+06 4.6 1998--2015 Dec-2016 SRV-ILS Safety Relief Valve (BWR Only) Internal Leakage (Small)
EPIX/RADS 25 72,220,220 h
558 Gamma EB/PL/KS 1.16E-09 1.76E-07 4.09E-07 1.61E-06 0.471 1.150E+06 9.1 1998--2015 Dec-2016 SRV-ILL Safety Relief Valve (BWR Only) Internal Leakage (Rupture)
EPIX/RADS 25 72,220,220 h
558 Gamma EB/PL/KS 8.76E-13 1.99E-09 8.18E-09 3.74E-08 0.300 3.667E+07 18.8 1998--2015 SRV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 SRV-ELS Safety Relief Valve (BWR Only) External Leakage (Small)
EPIX/RADS 0
72,220,220 h
558 Gamma JNID/IL 2.72E-11 3.15E-09 6.92E-09 2.66E-08 0.500 7.220E+07 8.4 1998--2015 Dec-2016 SRV-ELL Safety Relief Valve (BWR Only) External Leakage (Rupture)
EPIX/RADS 0
72,220,220 h
558 Gamma JNID/IL 5.18E-14 1.18E-10 4.84E-10 2.22E-09 0.300 6.193E+08 18.8 1998--2015 SRV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 SVV-FTO BWR Code Safety Fails To Open EPIX/RADS 5
23,801 d
960 Beta EB/PL/KS 4.04E-07 8.73E-05 2.18E-04 8.77E-04 0.438 2.010E+03 10.0 1998--2015 Dec-2016 SVV-FTC BWR Code Safety Fails To Reclose EPIX/RADS 3
23,801 d
960 Beta JNID/IL 4.55E-05 1.33E-04 1.47E-04 2.95E-04 3.500 2.380E+04 2.2 1998--2015 Dec-2016 SafetyReliefValve (SRV)
HighPressureCore SprayGenerator Generators StationBlackout Generator(SBO)
EmergencyDiesel Generator(EDG)
HydroTurbine Generator(HTG)
CombustionTurbine Generator(CTG)
Positive DisplacementPump (PDP)
Pumps EngineDrivenPump (EDP)
TurbineDriven Pump(TDP)
MotorDrivenPump (MDP)
ManualValve(XVM)
Valves FlowControlValve (FCV)
CheckValve(CKV)
MainSteam IsolationValve (MSV)
VacuumBreaker Valve(VBV)
TurbineBypass Valve(TBV)
SolenoidOperated Valve(SOV)
MotorOperated Valve(MOV)
HydraulicOperated Valve(HOV)
AirOperatedValve (AOV) 12/21/16 12:00 PM DateRange IndustryaverageFailureProbabilityorRateDistribution(notea)
Comments (seeAppendixAfordetails)
EffectiveDate Grouping ComponentType ComponentFailure Mode Description DataSource Data
Failures DemandsorHours dorh Components Distribution Analysis Type 5th Median Mean 95th
Error Factor (noteb)
DateRange IndustryaverageFailureProbabilityorRateDistribution(notea)
Comments (seeAppendixAfordetails)
EffectiveDate Grouping ComponentType ComponentFailure Mode Description DataSource Data SVV-SOP Code Safety Valve Spurious Operation EPIX/RADS 11 211,426,600 h
1426 Gamma JNID/IL 3.10E-08 5.29E-08 5.44E-08 8.33E-08 11.500 2.110E+08 1.6 1998--2015 Dec-2016 SVV-ILS Code Safety Valve Internal Leakage (Small)
EPIX/RADS 14 211,426,600 h
1426 Gamma JNID/IL 4.20E-08 6.71E-08 6.86E-08 1.01E-07 14.500 2.110E+08 1.5 1998--2015 Dec-2016 SVV-ILL Code Safety Valve Internal Leakage (Rupture)
EPIX/RADS 14 211,426,600 h
1426 Gamma JNID/IL 1.47E-13 3.34E-10 1.37E-09 6.28E-09 0.300 2.187E+08 18.8 1998--2015 SVV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 SVV-ELS Code Safety Valve External Leakage (Small)
EPIX/RADS 2
211,426,600 h
1426 Gamma JNID/IL 2.71E-09 1.03E-08 1.18E-08 2.62E-08 2.500 2.110E+08 2.5 1998--2015 Dec-2016 SVV-ELL Code Safety Valve External Leakage (Rupture)
EPIX/RADS 2
211,426,600 h
1426 Gamma JNID/IL 8.84E-14 2.01E-10 8.26E-10 3.78E-09 0.300 3.632E+08 18.8 1998--2015 SVV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 SVV-FTO-PWR-MSS Safety valve fails to open (main steam system, PWRs)
EPIX/RADS 4
20,243 d
762 Beta JNID/IL 8.23E-05 2.06E-04 2.22E-04 4.19E-04 4.500 2.020E+04 2.0 1998--2015 Dec-2016 SVV-FTC-PWR-MSS Steam generator code safety valves fail to close EPIX/RADS 2
20,243 d
762 Beta JNID/IL 2.84E-05 1.08E-04 1.23E-04 2.74E-04 2.500 2.020E+04 2.5 1998--2015 Dec-2016 SVV-SOP-PWR-MSS Safety valve spurious operation (main steam system)
EPIX/RADS 8
172,245,500 h
1137 Gamma JNID/IL 2.52E-08 4.75E-08 4.93E-08 8.02E-08 8.500 1.720E+08 1.7 1998--2015 Dec-2016 SVV-FTO-PWR-RCS PZR Code Safety Relief (SVV) Fails to Open EPIX/RADS 1
2,907 d
155 Beta JNID/IL 6.04E-05 4.06E-04 5.16E-04 1.34E-03 1.500 2.910E+03 3.3 1998--2015 Dec-2016 SVV-FTC-PWR-RCS PZR Code Safety Relief (SVV) Fails to Close EPIX/RADS 1
2,907 d
155 Beta JNID/IL 6.04E-05 4.06E-04 5.16E-04 1.34E-03 1.500 2.910E+03 3.3 1998--2015 Dec-2016 SVV-SOP-PWR-RCS Safety valve spurious operation (reactor coolant system)
EPIX/RADS 3
29,547,930 h
224 Gamma JNID/IL 3.67E-08 1.08E-07 1.18E-07 2.38E-07 3.500 2.950E+07 2.2 1998--2015 Dec-2016 PORV-FTO-PPR PZR Power Operated Relief/Dump Valve Fails To Open EPIX/RADS 16 6,130 d
114 Beta EB/PL/KS 2.05E-05 1.60E-03 3.24E-03 1.20E-02 0.550 1.700E+02 7.5 1998--2015 Dec-2016 PRV-CC-PZR PZR Power Operated Relief/Dump Valve Fails To Open EPIX/RADS 16 6,130 d
114 Beta EB/PL/KS 2.05E-05 1.60E-03 3.24E-03 1.20E-02 0.550 1.700E+02 7.5 1998--2015 Dec-2016 PORV-FTC-PPR PZR One PORV/SRV Fails To Reclose EPIX/RADS 4
6,130 d
114 Beta JNID/IL 2.71E-04 6.80E-04 7.34E-04 1.38E-03 4.500 6.130E+03 2.0 1998--2015 Dec-2016 PORV-FTO-MSS Main Steam Power Operated Relief/Dump Valve Fails To Open EPIX/RADS 42 10,401 d
111 Beta EB/PL/KS 4.08E-04 3.67E-03 4.91E-03 1.36E-02 1.240 2.520E+02 3.7 1998--2015 Dec-2016 ARV-OO-MSS Main Steam Power Operated Relief/Dump Fails to Close EPIX/RADS 19 10,401 d
111 Beta EB/PL/KS 8.60E-06 1.00E-03 2.21E-03 8.46E-03 0.499 2.260E+02 8.4 1998--2015 Dec-2016 PORV-FTC-MSS Main Steam Power Operated Relief/Dump Fails to Close EPIX/RADS 19 10,401 d
111 Beta EB/PL/KS 8.60E-06 1.00E-03 2.21E-03 8.46E-03 0.499 2.260E+02 8.4 1998--2015 Dec-2016 PORV-FC-MSS Main Steam Power Operated Relief Fails To Control (Cooldown)
EPIX/RADS 13 49,398,360 d
317 Gamma EB/PL/KS 4.91E-10 1.04E-07 2.57E-07 1.03E-06 0.440 1.710E+06 10.0 1998--2015 Dec-2016 ARV-CC-MSS Main Steam Power Operated Relief/Dump Valve Fails To Open EPIX/RADS 42 10,401 d
111 Beta EB/PL/KS 4.08E-04 3.67E-03 4.91E-03 1.36E-02 1.240 2.520E+02 3.7 1998--2015 Dec-2016 PORV-FC Main Steam Power Operated Relief Fails To Control (Cooldown)
EPIX/RADS 13 49,398,360 d
317 Gamma EB/PL/KS 4.91E-10 1.04E-07 2.57E-07 1.03E-06 0.440 1.710E+06 10.0 1998--2015 Dec-2016 PORV-SOP Power Operated Relief Spurious Opening EPIX/RADS 24 69,470,980 h
448 Gamma JNID/IL 2.44E-07 3.48E-07 3.53E-07 4.77E-07 24.500 6.950E+07 1.4 1998--2015 Dec-2016 PORV-ILS Power Operated Relief Internal Leakage (Small)
EPIX/RADS 18 69,470,980 h
448 Gamma JNID/IL 1.73E-07 2.61E-07 2.66E-07 3.75E-07 18.500 6.950E+07 1.4 1998--2015 Dec-2016 PORV-ILL Power Operated Relief Internal Leakage (Rupture)
EPIX/RADS 18 69,470,980 h
448 Gamma JNID/IL 5.69E-13 1.30E-09 5.32E-09 2.43E-08 0.300 5.639E+07 18.8 1998--2015 PORV leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 PORV-ELS Power Operated Relief External Leakage (Small)
EPIX/RADS 0
69,470,980 h
448 Gamma JNID/IL 2.83E-11 3.27E-09 7.20E-09 2.76E-08 0.500 6.950E+07 8.4 1998--2015 Dec-2016 PORV-ELL Power Operated Relief External Leakage (Rupture)
EPIX/RADS 0
69,470,980 h
448 Gamma JNID/IL 5.39E-14 1.23E-10 5.04E-10 2.31E-09 0.300 5.952E+08 18.8 1998--2015 PORV leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 PORV-L PORVs/SRVs Open During LOOP Special Calc d
0 Point Estimate MLE 1.48E-01 Nov-2011 PORV-T PORVs/SRVs Open During Transient Special Calc d
0 Point Estimate MLE 3.55E-02 Nov-2011 PORV-Lquid PORVs Fail To Close After Passing Liquid Special Calc 0
7 d
0 Beta JNID/IL 6.45E-05 2.46E-02 6.25E-02 2.54E-01 0.393 5.895E+00 10.3 Nov-2011 PORV-P1 PWR One PORV/SRV Sticks Open Special Calc 18 13,897 d
0 Beta JNID/IL 2.61E-04 1.23E-03 1.46E-03 3.46E-03 2.009 1.374E+03 2.8 Nov-2011 RVL-FTO Low Capacity Relief Valve Fails to Close EPIX/RADS 5
78 d
12 Beta EB/PL/KS 1.67E-04 4.78E-02 1.07E-01 4.14E-01 0.413 3.450E+00 8.6 1998--2015 Dec-2016 RVL-FTC Low Capacity Relief Valve Fails To Open EPIX/RADS 0
78 d
12 Beta JNID/IL 2.52E-05 2.91E-03 6.34E-03 2.43E-02 0.500 7.840E+01 8.4 1998--2015 Dec-2016 RVL-SO Low Capacity Relief Valve Spurious Operation EPIX/RADS 0
9,633,048 h
81 Gamma JNID/IL 2.04E-10 2.36E-08 5.19E-08 1.99E-07 0.500 9.630E+06 8.4 1998--2015 Dec-2016 RVL-ILS Low Capacity Relief Valve Internal Leakage (Small)
EPIX/RADS 11 9,633,048 h
81 Gamma JNID/IL 6.80E-07 1.16E-06 1.19E-06 1.83E-06 11.500 9.630E+06 1.6 1998--2015 Dec-2016 RVL-ILL Low Capacity Relief Valve Internal Leakage (Rupture)
EPIX/RADS 11 9,633,048 h
81 Gamma JNID/IL 2.55E-12 5.80E-09 2.38E-08 1.09E-07 0.300 1.261E+07 18.8 1998--2015 RVL leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 RVL-ELS Low Capacity Relief Valve External Leakage (Small)
EPIX/RADS 2
9,633,048 h
81 Gamma JNID/IL 5.95E-08 2.26E-07 2.60E-07 5.75E-07 2.500 9.630E+06 2.5 1998--2015 Dec-2016 RVL-ELL Low Capacity Relief Valve External Leakage (Rupture)
EPIX/RADS 2
9,633,048 h
81 Gamma JNID/IL 1.95E-12 4.44E-09 1.82E-08 8.33E-08 0.300 1.648E+07 18.8 1998--2015 RVL leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 BatteryCharger (BCH)
BCH-FTOP Battery Charger Fails to Operate EPIX/RADS 294 120,676,300 h
790 Gamma EB/PL/KS 2.67E-07 2.00E-06 2.59E-06 6.93E-06 1.390 5.360E+05 3.5 1998--2015 Dec-2016 Battery(BAT)
BAT-FTOP Battery Fails to Operate EPIX/RADS 23 63,157,740 h
415 Gamma JNID/IL 2.55E-07 3.67E-07 3.72E-07 5.06E-07 23.500 6.320E+07 1.4 1998--2015 Dec-2016 ABT-FF Automatic Power Transfer Switch Fails To Transfer EPIX/RADS 4
3,976 d
27 Beta JNID/IL 4.19E-04 1.05E-03 1.13E-03 2.13E-03 4.500 3.970E+03 2.0 1998--2015 Dec-2016 ABT-SO Automatic Power Transfer Switch Transfers Open EPIX/RADS 0
5,048,822 h
32 Gamma JNID/IL 3.89E-10 4.50E-08 9.90E-08 3.80E-07 0.500 5.050E+06 8.4 1998--2015 Dec-2016 CBK-FTOC Circuit Breaker Fails To Open/Close EPIX/RADS 154 141,621 d
3512 Beta EB/PL/KS 4.77E-05 1.26E-03 2.07E-03 6.85E-03 0.758 3.650E+02 5.4 1998--2015 Dec-2016 CBK-SOP Circuit Breaker (All Voltages) Transfers Open EPIX/RADS 77 690,765,200 h
4609 Gamma EB/PL/KS 2.06E-09 9.01E-08 1.63E-07 5.72E-07 0.644 3.950E+06 6.4 1998--2015 Dec-2016 CBKHV-FTOC High Voltage (13.8 and 16 Kv) Circuit Breaker Fails To Open/Close EPIX/RADS 21 11,066 d
258 Beta EB/PL/KS 3.93E-05 1.59E-03 2.83E-03 9.84E-03 0.659 2.320E+02 6.2 1998--2015 Dec-2016 CBKHV-SOP High Voltage (13.8 and 16 Kv) Circuit Breaker Spurious Operation EPIX/RADS 17 43,105,710 h
298 Gamma EB/PL/KS 1.67E-09 2.15E-07 4.83E-07 1.87E-06 0.488 1.010E+06 8.7 1998--2015 Dec-2016 CBKMV-FTOC Medium Voltage (4160 v and 6.9 Kv) Circuit Breaker Fails To Open/Close EPIX/RADS 72 60,179 d
1093 Beta EB/PL/KS 3.15E-05 1.38E-03 2.49E-03 8.72E-03 0.644 2.580E+02 6.3 1998--2015 Dec-2016 CBKMV-SOP Medium Voltage (4160 v and 6.9 Kv) Circuit Breaker Spurious Operation EPIX/RADS 19 184,867,300 h
1245 Gamma EB/PL/KS 2.80E-10 4.81E-08 1.15E-07 4.53E-07 0.459 4.010E+06 9.4 1998--2015 Dec-2016 CRB-FTOC-480 Low Voltage (480 v) Circuit Breaker Fails To Open/Close EPIX/RADS 56 55,060 d
1776 Beta JNID/IL 8.13E-04 1.02E-03 1.03E-03 1.26E-03 56.500 5.500E+04 1.2 1998--2015 Dec-2016 CRB-CO-480 Low Voltage (480 v) Circuit Breaker Spurious Operation EPIX/RADS 39 396,295,000 h
2629 Gamma JNID/IL 7.52E-08 9.89E-08 9.97E-08 1.27E-07 39.500 3.960E+08 1.3 1998--2015 Dec-2016 CBKDC-FTOC DC Circuit Breaker Fails to Open/Close EPIX/RADS 2
5,777 d
217 Beta JNID/IL 9.91E-05 3.76E-04 4.33E-04 9.57E-04 2.500 5.780E+03 2.5 1998--2015 Dec-2016 CBKDC-SOP DC Circuit Breaker Spurious Operation EPIX/RADS 1
42,345,960 h
271 Gamma JNID/IL 4.16E-09 2.80E-08 3.54E-08 9.24E-08 1.500 4.230E+07 3.3 1998--2015 Dec-2016 Inverter(INV)
INV-FTOP Inverter Fails to Operate EPIX/RADS 92 30,051,790 h
210 Gamma EB/PL/KS 3.40E-07 3.61E-06 4.97E-06 1.43E-05 1.130 2.270E+05 4.0 1998--2015 Dec-2016 BUS-FTOP-AC AC Bus Fails to Operate EPIX/RADS 129 198,241,600 h
1352 Gamma EB/PL/KS 6.10E-08 6.81E-07 9.55E-07 2.75E-06 1.100 1.160E+06 4.0 1998--2015 Dec-2016 BUS-FTOP-DC DC Bus Fails to Operate EPIX/RADS 0
2,305,320 h
15 Gamma JNID/IL 8.51E-10 9.85E-08 2.17E-07 8.31E-07 0.500 2.310E+06 8.4 1998--2015 Dec-2016 MotorControl Center(MCC)
MCC-FTOP Motor Control Center Fail to Operate EPIX/RADS 6
34,080,880 h
217 Gamma JNID/IL 8.64E-08 1.81E-07 1.91E-07 3.28E-07 6.500 3.410E+07 1.8 1998--2018 Dec-2016 Transformer(TFM)
TFM-FTOP Transformer Fail to Operate EPIX/RADS 185 71,234,060 h
506 Gamma EB/PL/KS 6.33E-07 2.50E-06 2.89E-06 6.47E-06 2.400 8.320E+05 2.6 1998--2015 Dec-2016 Sequencer(SEQ)
SEQ Sequencer fails to operate (as a Sub Component of the EDG)
EPIX/RADS 8
65,993 d
232 Gamma EB/PL/KS 1.37E-06 6.51E-05 1.20E-04 4.24E-04 0.628 5.240E+03 6.5 1998--2015 Dec-2016 Fuse FUS-CO Fuse Transfer to Open State EPIX/RADS 2
203,224,300 h
1289 Gamma JNID/IL 2.82E-09 1.07E-08 1.23E-08 2.73E-08 2.500 2.030E+08 2.5 1998--2015 Dec-2016 STR-FLT-PG Strainer Plugging (Dirty water systems)
EPIX/RADS 10 9,300,024 h
59 Gamma JNID/IL 6.23E-07 1.09E-06 1.13E-06 1.76E-06 10.500 9.300E+06 1.6 1998--2015 Dec-2016 STR-FLT-ELS Filter External Leakage (Small) All Systems EPIX/RADS 3
33,686,420 h
220 Gamma JNID/IL 3.22E-08 9.42E-08 1.04E-07 2.09E-07 3.500 3.370E+07 2.2 1998--2015 Dec-2016 STR-FLT-ELL Filter External Leakage (Small) All Systems EPIX/RADS 3
33,686,420 h
220 Gamma JNID/IL 7.79E-13 1.77E-09 7.28E-09 3.33E-08 0.300 4.121E+07 18.8 1998--2015 STR leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 STR-FLT-CLEAN-PG Filter Plugging, Clean Systems EPIX/RADS 2
10,115,010 h
68 Gamma JNID/IL 5.67E-08 2.15E-07 2.47E-07 5.48E-07 2.500 1.010E+07 2.5 1998--2015 Dec-2016 STR-FLT-CLEAN-BYP Clean Systems Passive Filter Bypass EPIX/RADS 0
10,115,010 h
68 Gamma JNID/IL 1.95E-10 2.25E-08 4.94E-08 1.90E-07 0.500 1.010E+07 8.4 1998--2015 Dec-2016 IAS-FLT-PG Instrument Air System Filter Plugs EPIX/RADS 0
122,688 h
2 Gamma JNID/IL 1.60E-08 1.85E-06 4.08E-06 1.56E-05 0.500 1.230E+05 8.4 1998--2015 Dec-2016 IAS-FLT-FC Instrument Air System Filter Fails EPIX/RADS 0
122,688 h
2 Gamma JNID/IL 1.60E-08 1.85E-06 4.08E-06 1.56E-05 0.500 1.230E+05 8.4 1998--2015 Dec-2016 STR-FLTSC-PG Self Cleaning Filter Plugging EPIX/RADS 55 25,738,850 h
166 Gamma JNID/IL 1.71E-06 2.15E-06 2.16E-06 2.66E-06 55.500 2.570E+07 1.2 1998--2015 Dec-2016 STR-FLTSC-BYP Self Cleaning Filter Bypass EPIX/RADS 1
25,738,850 h
166 Gamma JNID/IL 6.85E-09 4.60E-08 5.83E-08 1.52E-07 1.500 2.570E+07 3.3 1998--2015 Dec-2016 STR-FLTSC-FTOP Self Cleaning Filter Fails to Operate EPIX/RADS 91 25,738,850 h
166 Gamma JNID/IL 2.97E-06 3.55E-06 3.55E-06 4.19E-06 91.500 2.570E+07 1.2 1998--2015 Dec-2016 STR-FLTSC-ELS Self Cleaning Filter External Leakage (Small)
EPIX/RADS 14 25,738,850 h
166 Gamma JNID/IL 3.45E-07 5.51E-07 5.63E-07 8.28E-07 14.500 2.570E+07 1.5 1998--2015 Dec-2016 STR-FLTSC-ELL Self Cleaning Filter External Leakage (Rupture)
EPIX/RADS 14 25,738,850 h
166 Gamma JNID/IL 4.22E-12 9.61E-09 3.94E-08 1.80E-07 0.300 7.612E+06 18.8 1998--2015 STR leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 STR-PE-SWS Strainer Plugging (Dirty water systems), Environmental EPIX/RADS 1
9,198,527 h
59 Gamma JNID/IL 1.91E-08 1.29E-07 1.63E-07 4.25E-07 1.500 9.200E+06 3.3 1998--2015 Dec-2016 STR-PG-NE-SWS Strainer Plugging (Dirty water systems), Non-Environmental EPIX/RADS 35 25,738,850 h
166 Gamma JNID/IL 1.02E-06 1.37E-06 1.38E-06 1.78E-06 35.500 2.570E+07 1.3 1998--2015 Dec-2016 SWS-STR-PG Standby Service Water Strainer Plugs EPIX/RADS 13 9,198,527 h
59 Gamma JNID/IL 8.78E-07 1.43E-06 1.47E-06 2.18E-06 13.500 9.200E+06 1.5 1998--2015 Dec-2016 NSW-STR-PG Nuclear Service Water Strainer Plugs EPIX/RADS 42 15,944,260 h
103 Gamma JNID/IL 2.04E-06 2.65E-06 2.67E-06 3.38E-06 42.500 1.590E+07 1.3 1998--2015 Dec-2016 SMP-PG Containment Sump Plugging (pooled BWR and PWR)
EPIX/RADS 1
14,682,020 h
95 Gamma JNID/IL 1.20E-08 8.05E-08 1.02E-07 2.66E-07 1.500 1.470E+07 3.3 1998--2015 Dec-2016 STR-SUMP-PG Containment Sump Plugging (pooled PWR and BWR)
EPIX/RADS 4
14,682,020 h
95 Gamma JNID/IL 1.13E-07 2.84E-07 3.06E-07 5.75E-07 4.500 1.470E+07 2.0 1998--2015 Dec-2016 BWR-RHR-SUMP-PG Containment Sump Plugging (BWRs, suppression pool strainers)
EPIX/RADS 0
6,565,272 h
42 Gamma JNID/IL 2.99E-10 3.46E-08 7.62E-08 2.92E-07 0.500 6.570E+06 8.4 1998--2015 Dec-2016 SMP-PG-PWR Containment Sump Plugging (PWRs)
EPIX/RADS 1
4,382,688 h
29 Gamma JNID/IL 4.02E-08 2.70E-07 3.42E-07 8.92E-07 1.500 4.380E+06 3.3 1998--2015 Dec-2016 TSA-FS Traveling Screen Fails To Start EPIX/RADS 97 30,417,290 d
212 Gamma EB/PL/KS 3.30E-08 1.92E-06 3.67E-06 1.32E-05 0.594 1.620E+05 6.9 1998--2015 Dec-2016 TSA-PG Traveling Screen Plugging EPIX/RADS 68 30,417,290 h
212 Gamma EB/PL/KS 6.77E-09 1.08E-06 2.53E-06 9.98E-06 0.466 1.840E+05 9.2 1998--2015 Dec-2016 TSA-BYP Traveling Screen Bypass EPIX/RADS 8
30,417,290 h
212 Gamma JNID/IL 1.43E-07 2.69E-07 2.79E-07 4.54E-07 8.500 3.040E+07 1.7 1998--2015 Dec-2016 TSA-FR Traveling Screen Fails To Run EPIX/RADS 97 30,417,290 h
212 Gamma EB/PL/KS 3.30E-08 1.92E-06 3.67E-06 1.32E-05 0.594 1.620E+05 6.9 1998--2015 Dec-2016 TSA-FTOP Traveling Screen Fails to Operate EPIX/RADS 97 30,417,290 h
212 Gamma EB/PL/KS 3.30E-08 1.92E-06 3.67E-06 1.32E-05 0.594 1.620E+05 6.9 1998--2015 Dec-2016 TSA-PG-NE-SWS Traveling Screens Plug Nonenvironmental (hr-1)
EPIX/RADS 0
2,331,600 h
15 Gamma JNID/IL 8.44E-10 9.76E-08 2.14E-07 8.24E-07 0.500 2.330E+06 8.4 1998--2015 Dec-2016 SWS-TSA-PG Standby Service Water Traveling Screen Plugs EPIX/RADS 0
2,331,600 h
15 Gamma JNID/IL 8.44E-10 9.76E-08 2.14E-07 8.24E-07 0.500 2.330E+06 8.4 1998--2015 Dec-2016 TrashRack(TRK)
TRK-PG Trash Rack Plugging EPIX/RADS 3
1,577,760 h
10 Gamma EB/PL/KS 2.05E-08 1.17E-06 2.23E-06 8.03E-06 0.597 2.680E+05 6.9 1998--2015 Dec-2016 Bistable(BIS)
BIS FTOP Bistable Fail to Operate RPS SSs 55 102,094 d
Beta JNID/IL 2.14E-06 2.47E-04 5.44E-04 2.09E-03 0.500 9.193E+02 8.4 Feb-2007 PLF FTOP Process Logic (Flow) Fail to Operate RPS SSs 3
6,075 d
Beta JNID/IL 2.46E-06 2.85E-04 6.25E-04 2.40E-03 0.500 7.990E+02 8.4 The PLL data was used to estimate the flow process logic reliability.
Feb-2007 PLL FTOP Process Logic (Level) Fail to Operate RPS SSs 3
6,075 d
Beta JNID/IL 2.46E-06 2.85E-04 6.25E-04 2.40E-03 0.500 7.990E+02 8.4 Feb-2007 PLP FTOP Process Logic (Pressure) Fail to Operate RPS SSs 6
38,115 d
Beta JNID/IL 6.29E-07 7.28E-05 1.60E-04 6.15E-04 0.500 3.124E+03 8.4 Feb-2007 PLDT FTOP Process Logic (Delta Temperature) Fail to Operate RPS SSs 24 4,887 d
Beta JNID/IL 2.01E-05 2.32E-03 5.07E-03 1.94E-02 0.500 9.805E+01 8.4 The PLL data was used to estimate the flow process logic reliability.
Feb-2007 STF FTOP-D Sensor/Transmitter (Flow) Fail to Operate on Demand RPS SSs 5
6,750 d
Beta JNID/IL 3.21E-06 3.71E-04 8.15E-04 3.13E-03 0.500 6.132E+02 8.4 The STL data was used to estimate the flow senser/transmitter reliability.
Feb-2007 STF FTOP-R Sensor/Transmitter (Flow) Fail to Operate per Hour RPS SSs 0
9,831,970 h
Gamma JNID/IL 4.00E-10 4.63E-08 1.02E-07 3.91E-07 0.500 4.916E+06 8.4 Feb-2007 STL FTOP-D Sensor/Transmitter (Level) Fail to Operate on Demand RPS SSs 5
6,750 d
Beta JNID/IL 3.21E-06 3.71E-04 8.15E-04 3.13E-03 0.500 6.132E+02 8.4 Feb-2007 STL FTOP-R Sensor/Transmitter (Level) Fail to Operate per Hour RPS SSs 0
9,831,970 h
Gamma JNID/IL 4.00E-10 4.63E-08 1.02E-07 3.91E-07 0.500 4.916E+06 8.4 Feb-2007 STP FTOP-D Sensor/Transmitter (Pressure) Fail to Operate on Demand RPS SSs 2
23,960 d
Beta JNID/IL 4.60E-07 5.32E-05 1.17E-04 4.49E-04 0.500 4.278E+03 8.4 Feb-2007 STP FTOP-R Sensor/Transmitter (Pressure) Fail to Operate per Hour RPS SSs 35 43,430,500 h
Gamma JNID/IL 3.23E-09 3.74E-07 8.22E-07 3.16E-06 0.500 6.083E+05 8.4 Feb-2007 STT FTOP-D Sensor/Transmitter (Temperature) Fail to Operate on Demand RPS SSs 17 40,759 d
Beta JNID/IL 1.70E-06 1.97E-04 4.32E-04 1.66E-03 0.500 1.157E+03 8.4 The STL data was used to estimate the flow senser/transmitter reliability.
Feb-2007 STT FTOP-R Sensor/Transmitter (Temperature) Fail to Operate per Hour RPS SSs 29 35,107,400 h
Gamma JNID/IL 3.30E-09 3.82E-07 8.40E-07 3.23E-06 0.500 5.950E+05 8.4 Feb-2007 RTB (BME) FTO/C RPS Breaker (Mechanical) Fail to Open or Close RPS SSs 1
97,359 d
Beta JNID/IL 6.06E-08 7.01E-06 1.54E-05 5.92E-05 0.500 3.245E+04 8.4 Feb-2007 RTB (BSN) FTOP RPS Breaker (Shunt Trip) Fail to Operate RPS SSs 14 44,104 d
Beta JNID/IL 1.29E-06 1.50E-04 3.29E-04 1.26E-03 0.500 1.520E+03 8.4 Feb-2007 RTB (BUV) FTOP RPS Breaker (Undervoltage Trip) Fail to Operate RPS SSs 23 57,199 d
Beta JNID/IL 1.62E-06 1.88E-04 4.13E-04 1.58E-03 0.500 1.211E+03 8.4 Feb-2007 RTB FTO/C RPS Breaker (Combined) Fail to Open or Close RPS SSs d
Beta JNID/IL 6.11E-08 7.07E-06 1.55E-05 5.97E-05 0.500 3.217E+04 8.4 Feb-2007 ManualSwitch (MSW)
MSW FTO/C Manual Switch Fail to Open or Close RPS SSs 2
19,789 d
Beta JNID/IL 4.97E-07 5.75E-05 1.26E-04 4.85E-04 0.500 3.958E+03 8.4 Feb-2007 Relay(RLY)
RLY FTOP Relay Fail to Operate RPS SSs 24 974,417 d
Beta JNID/IL 9.77E-08 1.13E-05 2.48E-05 9.54E-05 0.500 2.013E+04 8.4 Feb-2007 CRD-FTOP Control Rod Fail to Insert Rod EPIX/RADS 18 183,267,700 d
1201 Gamma EB/PL/KS 1.62E-10 4.40E-08 1.15E-07 4.71E-07 0.419 3.640E+06 10.7 1998--2015 Dec-2016 CRD-SOP Control Rod Drive Spurious Operation EPIX/RADS 34 183,267,700 h
1201 Gamma JNID/IL 1.39E-07 1.87E-07 1.88E-07 2.44E-07 34.500 1.830E+08 1.3 1998--2015 Dec-2016 ROD-FTOP Control Rod Fails to Operate/ Insert Rod EPIX/RADS 20 132,832,800 d
846 Gamma JNID/IL 1.03E-07 1.52E-07 1.54E-07 2.14E-07 20.500 1.330E+08 1.4 1998--2015 Dec-2016 ROD-SOP Control Rod Spurious Operation EPIX/RADS 20 132,832,800 h
846 Gamma JNID/IL 1.03E-07 1.52E-07 1.54E-07 2.14E-07 20.500 1.330E+08 1.4 1998--2015 Dec-2016 HCU-FTI Hydraulic Control Unit Fails to Insert EPIX/RADS 0
d 0
1998--2015 Dec-2016 HCU-FTOP Hydraulic Control Unit Fails to Operate EPIX/RADS 29 1,625,902,000 h
10436 Gamma EB/PL/KS 1.16E-09 1.30E-08 1.81E-08 5.23E-08 1.100 6.090E+07 4.0 1998--2015 Dec-2016 HCU-SOP Hydraulic Control Unit Spurious Operation EPIX/RADS 35 1,625,902,000 h
10436 Gamma EB/PL/KS 6.01E-09 1.93E-08 2.16E-08 4.49E-08 3.080 1.430E+08 2.3 1998--2015 Dec-2016 AOD-FTOC Air-Operated Damper Fails To Open/Close EPIX/RADS 2
7,799 d
49 Beta JNID/IL 7.34E-05 2.79E-04 3.21E-04 7.09E-04 2.500 7.800E+03 2.5 1998--2015 Dec-2016 AOD-SOP Air-Operated Damper Spurious Operation EPIX/RADS 3
31,342,830 h
209 Gamma JNID/IL 3.46E-08 1.01E-07 1.12E-07 2.25E-07 3.500 3.130E+07 2.2 1998--2015 Dec-2016 AOD-ILS Air-Operated Damper Internal Leakage (Small)
EPIX/RADS 5
31,342,830 h
209 Gamma JNID/IL 7.31E-08 1.65E-07 1.75E-07 3.14E-07 5.500 3.130E+07 1.9 1998--2015 Dec-2016 AOD-ILL Air-Operated Damper Internal Leakage (Rupture)
EPIX/RADS 5
31,342,830 h
209 Gamma JNID/IL 3.75E-13 8.53E-10 3.50E-09 1.60E-08 0.300 8.571E+07 18.8 1998--2015 DMP leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 HOD-FTOC Hydraulic Operated Damper Fails To Open/Close EPIX/RADS 11 6,225 d
39 Beta EB/PL/KS 3.41E-05 2.74E-03 5.57E-03 2.07E-02 0.545 9.730E+01 7.5 1998--2015 Dec-2016 HOD-SOP Hydraulic Operated Damper Spurious Operation EPIX/RADS 8
19,397,950 h
128 Gamma JNID/IL 2.23E-07 4.21E-07 4.38E-07 7.11E-07 8.500 1.940E+07 1.7 1998--2015 Dec-2016 HOD-ILS Hydraulic Operated Damper Internal Leakage (Small)
EPIX/RADS 0
19,397,950 h
128 Gamma JNID/IL 1.01E-10 1.17E-08 2.58E-08 9.90E-08 0.500 1.940E+07 8.4 1998--2015 Dec-2016 HOD-ILL Hydraulic Operated Damper Internal Leakage (Rupture)
EPIX/RADS 0
19,397,950 h
128 Gamma JNID/IL 5.52E-14 1.26E-10 5.16E-10 2.36E-09 0.300 5.814E+08 18.8 1998--2015 DMP leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 MOD-FTOC Motor Operated Damper Fails To Open EPIX/RADS 7
33,254 d
45 Beta JNID/IL 1.09E-04 2.16E-04 2.26E-04 3.76E-04 7.500 3.320E+04 1.7 1998--2015 Dec-2016 MOD-SOP Motor Operated Damper Fails To Remain Open EPIX/RADS 0
17,147,900 h
111 Gamma JNID/IL 1.15E-10 1.33E-08 2.92E-08 1.12E-07 0.500 1.710E+07 8.4 1998--2015 Dec-2016 MOD-ILS Motor Operated Damper Internal Leakage (Small)
EPIX/RADS 1
17,147,900 d
111 Gamma JNID/IL 1.03E-08 6.92E-08 8.75E-08 2.29E-07 1.500 1.710E+07 3.3 1998--2015 Dec-2016 MOD-ILL Motor Operated Damper Internal Leakage (Rupture)
EPIX/RADS 1
17,147,900 h
111 Gamma JNID/IL 1.87E-13 4.27E-10 1.75E-09 8.01E-09 0.300 1.714E+08 18.8 1998--2015 DMP leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 AHU-NR-FTS Air Handling/Heating Fan Fails To Start, Normally Running EPIX/RADS 45 17,336 d
139 Beta EB/PL/KS 7.32E-06 1.18E-03 2.76E-03 1.09E-02 0.465 1.680E+02 9.2 1998--2015 Dec-2016 AHU-NR-FTR Air Handling/Heating Unit Fails To Run, Normally Running EPIX/RADS 62 17,498,560 h
139 Gamma EB/PL/KS 2.64E-08 3.03E-06 6.65E-06 2.55E-05 0.501 7.530E+04 8.4 1998--2015 Dec-2016 ACX-FTS Air Handling/Heating Fan Fails To Start, Normally Running EPIX/RADS 45 17,336 d
139 Beta EB/PL/KS 7.32E-06 1.18E-03 2.76E-03 1.09E-02 0.465 1.680E+02 9.2 1998--2015 Dec-2016 ACX-FTR Air Handling/Heating Unit Fails To Run, Normally Running EPIX/RADS 62 21,790,640 h
139 Gamma EB/PL/KS 5.80E-08 2.25E-06 3.98E-06 1.38E-05 0.668 1.680E+05 6.1 1998--2015 Dec-2016 ACX-FTS-NS Air Cooling Heat Exchanger Fails to Start, Normally Standby EPIX/RADS 55 149,242 d
382 Beta EB/PL/KS 3.06E-06 2.68E-04 5.57E-04 2.09E-03 0.534 9.580E+02 7.8 1998--2015 Dec-2016 ACX-FTR<1H Air Cooling Heat Exchanger Fails to Run <1H Normally Standby EPIX/RADS 0
148,103 h
382 Gamma JNID/IL 1.33E-08 1.54E-06 3.38E-06 1.30E-05 0.500 1.480E+05 8.4 1998--2015 Dec-2016 ACX-FTR>1H Air Cooling Heat Exchanger Fails to Run >1H Normally Standby EPIX/RADS 45 10,793,680 h
382 Gamma JNID/IL 3.24E-06 4.18E-06 4.22E-06 5.29E-06 45.500 1.080E+07 1.3 1998--2015 Dec-2016 CHL-FTS Chiller Unit Fails To Start, Normally Running EPIX/RADS 121 18,215 d
80 Beta EB/PL/KS 1.35E-04 5.25E-03 9.21E-03 3.17E-02 0.667 7.180E+01 6.0 1998--2015 Dec-2016 CHL-FTR Chiller Unit Fails To Run, Normally Running EPIX/RADS 349 6,464,949 h
80 Gamma EB/PL/KS 4.19E-06 4.94E-05 6.93E-05 2.03E-04 1.070 1.540E+04 4.1 1998--2015 Dec-2016 CHL-FTS-NS Chiller Unit Fails To Start, Normally Standby EPIX/RADS 0
20,433 d
63 Beta JNID/IL 9.64E-08 1.12E-05 2.45E-05 9.42E-05 0.500 2.040E+04 8.4 1998--2015 Dec-2016 CHL-FTR<1H Chiller Unit Fails To Run <1H, Normally Standby EPIX/RADS 61 279,348 h
63 Gamma JNID/IL 1.76E-04 2.19E-04 2.20E-04 2.69E-04 61.500 2.790E+05 1.2 1998--2015 Dec-2016 CHL-FTR>1H Chiller Unit Fails To Run >1H, Normally Standby EPIX/RADS 61 279,348 h
63 Gamma JNID/IL 1.76E-04 2.19E-04 2.20E-04 2.69E-04 61.500 2.790E+05 1.2 1998--2015 Dec-2016 FAN-SBY-FTS HVAC Fan Fails To Start, Normally Standby EPIX/RADS 37 57,512 d
130 Beta JNID/IL 4.87E-04 6.46E-04 6.52E-04 8.36E-04 37.500 5.750E+04 1.3 1998--2015 Dec-2016 FAN-SBY-FTR<1H HVAC Fan Fails To Run, Early Term, Normally Standby EPIX/RADS 16 43,744 h
130 Gamma JNID/IL 2.39E-04 3.70E-04 3.77E-04 5.42E-04 16.500 4.370E+04 1.5 1998--2015 Dec-2016 FAN-SBY-FTR>1H HVAC Fan Fails To Run, Late Term, Normally Standby EPIX/RADS 27 137,892 h
130 Gamma JNID/IL 1.41E-04 1.97E-04 1.99E-04 2.66E-04 27.500 1.380E+05 1.3 1998--2015 Dec-2016 FAN-NR-FTS HVAC Fan Fails To Start, Normally Running EPIX/RADS 46 85,577 d
218 Beta JNID/IL 4.19E-04 5.40E-04 5.43E-04 6.81E-04 46.500 8.550E+04 1.3 1998--2015 Dec-2016 FAN-NR-FTR HVAC Fan Fails To Run, Normally Running EPIX/RADS 67 17,511,120 h
218 Gamma EB/PL/KS 3.07E-08 2.21E-06 4.41E-06 1.63E-05 0.561 1.270E+05 7.4 1998--2015 Dec-2016 MDC-FTS Motor Driven Compressor Fail To Start, Normally Running EPIX/RADS 109 9,197 d
70 Beta EB/PL/KS 2.06E-04 1.72E-02 3.41E-02 1.25E-01 0.539 1.530E+01 7.3 1998--2015 Dec-2016 MDC-FTR Motor Driven Compressor Fails To Run EPIX/RADS 307 5,595,966 h
70 Gamma EB/PL/KS 1.20E-05 5.50E-05 6.51E-05 1.53E-04 2.060 3.160E+04 2.8 1998--2015 Dec-2016 MDC-FTS-NS Motor Driven Compressor Fail To Start, Normally Standby EPIX/RADS 61 23,363 d
58 Beta EB/PL/KS 3.58E-04 3.14E-03 4.16E-03 1.15E-02 1.260 3.010E+02 3.7 1998--2015 Dec-2016 MDC-FTR<1H Motor Driven Compressor Fail To Run (0 To 1 Hour)
EPIX/RADS 22 1,683,943 h
58 Gamma JNID/IL 9.11E-06 1.32E-05 1.34E-05 1.84E-05 22.500 1.680E+06 1.4 1998--2015 Dec-2016 MDC-FTR>1H Motor Driven Compressor Fail To Run (> 1 Hour)
EPIX/RADS 22 1,683,943 h
58 Gamma JNID/IL 9.11E-06 1.32E-05 1.34E-05 1.84E-05 22.500 1.680E+06 1.4 1998--2015 Dec-2016 EDC-FS-NS Engine Driven Compressor Fails To Start, Normally Standby EPIX/RADS 17 2,122 d
5 Beta JNID/IL 5.29E-03 8.07E-03 8.24E-03 1.17E-02 17.500 2.110E+03 1.4 1998--2015 Dec-2016 AirCompressor (CMP)
Heating&Ventilation Fan(FAN)
AirCooling Chiller(CHL)
AirDamper(DMP)
AirHandling ControlRodDrive (CRD)
ControlRod(ROD)
ControlRods HydraulicControl Unit(HCU)
Sensor/Transmitter Components ReactorTripBreaker (RTB)
TravelingScreen Assembly(TSA)
Strainers/Filters ProcessLogic Components SumpStrainer(SMP)
SelfCleaning Strainer(FLTSC)
Filter(FLT)
RPS CircuitBreaker (CBK)
Bus(BUS)
ElectricalEquipment AutomaticBus TransferSwitch ReliefValves LowCapacityRelief Valve(RVL)
PowerOperated ReliefValve(PORV)
SafetyValve(SVV)
Failures DemandsorHours dorh Components Distribution Analysis Type 5th Median Mean 95th
Error Factor (noteb)
DateRange IndustryaverageFailureProbabilityorRateDistribution(notea)
Comments (seeAppendixAfordetails)
EffectiveDate Grouping ComponentType ComponentFailure Mode Description DataSource Data EDC-FR-E Engine Driven Compressor Fails To Run <1H, Normally Standby EPIX/RADS 0
2,122 h
5 Gamma JNID/IL 9.27E-07 1.07E-04 2.36E-04 9.06E-04 0.500 2.120E+03 8.4 1998--2015 Dec-2016 EDC-FR-L Engine Driven Compressor Fails To Run >1H, Normally Standby EPIX/RADS 0
1,735 h
5 Gamma JNID/IL 1.13E-06 1.31E-04 2.88E-04 1.10E-03 0.500 1.740E+03 8.4 1998--2015 Dec-2016 IAS-MDC-FR Instrument Air System Motor Driven Compressor Fails to Run EPIX/RADS 186 2,680,601 h
41 Gamma EB/PL/KS 1.95E-05 6.64E-05 7.50E-05 1.60E-04 2.850 3.800E+04 2.4 1998--2015 Dec-2016 PCA-MDC-FR PCA Motor Driven Compressor Fails to Run EPIX/RADS 3
118,273 h
2 Gamma JNID/IL 9.18E-06 2.69E-05 2.96E-05 5.96E-05 3.500 1.180E+05 2.2 1998--2015 Dec-2016 AirDrierUnit(ADU)
ADU-FTOP Air dryer unit fails to operate NUREG/CR-6928 h
Gamma JNID/IL 5.35E-10 1.22E-06 5.00E-06 2.29E-05 0.300 6.000E+04 18.8 Jun-2005 ACC-FTOP Accumulator Fails to Operate EPIX/RADS 18 96,227,420 h
617 Gamma JNID/IL 1.25E-07 1.89E-07 1.92E-07 2.71E-07 18.500 9.620E+07 1.4 1998--2015 Dec-2016 ACC-ELS Accumulator External Leakage (Small)
EPIX/RADS 11 96,227,420 h
617 Gamma JNID/IL 6.80E-08 1.16E-07 1.20E-07 1.83E-07 11.500 9.620E+07 1.6 1998--2015 Dec-2016 ACC-ELL Accumulator External Leakage (Rupture)
EPIX/RADS 11 96,227,420 h
617 Gamma JNID/IL 8.99E-13 2.05E-09 8.40E-09 3.84E-08 0.300 3.571E+07 18.8 1998--2015 ACC leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 CTF-STBY-FTS Cooling Tower Fan Fails To Start (Standby)
EPIX/RADS 16 44,600 d
54 Beta JNID/IL 2.34E-04 3.62E-04 3.70E-04 5.31E-04 16.500 4.460E+04 1.5 1998--2015 Dec-2016 CTF-STBY-FTR<1H Cooling Tower Fan Fails To Run <1H (Standby)
EPIX/RADS 0
44,488 h
54 Gamma JNID/IL 4.42E-08 5.11E-06 1.12E-05 4.32E-05 0.500 4.450E+04 8.4 1998--2015 Dec-2016 CTF-STBY-FTR>1H Cooling Tower Fan Fails To Run >1H (Standby)
EPIX/RADS 2
1,073,115 h
54 Gamma JNID/IL 5.35E-07 2.03E-06 2.33E-06 5.17E-06 2.500 1.070E+06 2.5 1998--2015 Dec-2016 CTF-NR-FTS Cooling Tower Fan Fails To Start EPIX/RADS 1
2,687 d
20 Beta JNID/IL 6.54E-05 4.40E-04 5.58E-04 1.45E-03 1.500 2.690E+03 3.3 1998--2015 Dec-2016 CTF-NR-FTR Cooling Tower Fan Fails To Run EPIX/RADS 3
1,504,717 h
20 Gamma JNID/IL 7.22E-07 2.12E-06 2.33E-06 4.69E-06 3.500 1.500E+06 2.2 1998--2015 Dec-2016 TNK-FC Tank Rupture EPIX/RADS 15 59,350,270 h
379 Gamma JNID/IL 1.62E-07 2.55E-07 2.61E-07 3.79E-07 15.500 5.940E+07 1.5 1998--2018 Dec-2016 TNK-PRESS-LIQ-ELS Pressurized Liquid Tank Small Leakage External Leakage (Small)
EPIX/RADS 8
24,349,940 h
156 Gamma EB/PL/KS 1.22E-09 1.49E-07 3.31E-07 1.28E-06 0.494 1.490E+06 8.6 1998--2015 Dec-2016 TNK-PRESS-LIQ-ELL Pressurized Liquid Tank Small Leakage External Leakage (Rupture)
EPIX/RADS 8
24,349,940 h
156 Gamma EB/PL/KS 2.48E-12 5.65E-09 2.32E-08 1.06E-07 0.300 1.295E+07 18.8 1998--2015 TNK leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 TNK-UNPRESS-LIQ-ELS Unpressurized Liquid Tank Small Leakage External Leakage (Small)
EPIX/RADS 7
29,235,430 h
191 Gamma JNID/IL 1.24E-07 2.46E-07 2.57E-07 4.28E-07 7.500 2.920E+07 1.7 1998--2015 Dec-2016 TNK-UNPRESS-LIQ-ELL Unpressurized Liquid Tank Small Leakage External Leakage (Rupture)
EPIX/RADS 7
29,235,430 h
191 Gamma JNID/IL 1.93E-12 4.39E-09 1.80E-08 8.23E-08 0.300 1.668E+07 18.8 1998--2015 TNK leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 SWS-TNK-FC Standby Service Water Tank Fails to Control EPIX/RADS 0
1,086,910 h
7 Gamma JNID/IL 1.80E-09 2.09E-07 4.60E-07 1.76E-06 0.500 1.090E+06 8.4 1998--2015 Dec-2016 IAS-TNK-FC Instrument Air System Tank Fails to Control EPIX/RADS 0
3,944,400 h
25 Gamma JNID/IL 4.99E-10 5.77E-08 1.27E-07 4.87E-07 0.500 3.940E+06 8.4 1998--2015 Dec-2016 TNK-GAS-ELS Gas Tank Small Leakage External Leakage (Small)
EPIX/RADS 2
5,048,832 h
32 Gamma JNID/IL 1.13E-07 4.31E-07 4.95E-07 1.10E-06 2.500 5.050E+06 2.5 1998--2015 Dec-2016 TNK-GAS-ELL Gas Tank Small Leakage External Leakage (Rupture)
EPIX/RADS 2
5,048,832 h
32 Gamma JNID/IL 3.71E-12 8.45E-09 3.47E-08 1.59E-07 0.300 8.658E+06 18.8 1998--2015 TNK leak rate > 50 gpm. Small external leak times 0.07.
Dec-2016 Orifice(ORF)
ORF-PG Orifice Plugging WSRV h
Gamma JNID/IL 1.07E-10 2.44E-07 1.00E-06 4.57E-06 0.300 3.000E+05 18.8 Jun-2005 PIPE OTHER-ELS Piping Non-Service Water System External Leak Small EPIX 5
15,830,000,000 h-ft Gamma JNID/IL 9.94E-13 1.15E-10 2.53E-10 9.71E-10 0.500 1.979E+09 8.4 Feb-2007 PIPE OTHER-ELL Piping Non-Service Water System External Leak Large EPIX 5
15,830,000,000 h-ft Gamma JNID/IL 2.70E-15 6.16E-12 2.53E-11 1.16E-10 0.300 1.187E+10 18.8 Pipe leakage > 50 gpm, small leakage times 0.1.
Feb-2007 PIPE SWS-ELS Piping Service Water System External Leak Small EPIX 9
13,060,000,000 h-ft Gamma JNID/IL 2.71E-12 3.14E-10 6.89E-10 2.65E-09 0.500 7.256E+08 8.4 Feb-2007 PIPE SWS-ELL Piping Service Water System External Leak Large EPIX 9
13,060,000,000 h-ft Gamma JNID/IL 1.48E-14 3.36E-11 1.38E-10 6.30E-10 0.300 2.177E+09 18.8 Pipe leakage > 50 gpm, small leakage times 0.2.
Feb-2007 HTX-LOHT Heat Exchanger Plugging/Heat Transfer (Pooled)
EPIX/RADS 87 269,796,800 h
1770 Gamma EB/PL/KS 2.32E-09 1.88E-07 3.85E-07 1.44E-06 0.544 1.410E+06 7.6 1998--2015 Dec-2016 HTX-ILS Heat Exchanger Internal Leakage (Small)
EPIX/RADS 98 269,796,800 h
1770 Gamma EB/PL/KS 5.03E-10 1.42E-07 3.73E-07 1.54E-06 0.416 1.110E+06 10.8 1998--2015 Dec-2016 HTX-ILL Heat Exchanger Internal Leakage (Rupture)
EPIX/RADS 98 269,796,800 h
1770 Gamma EB/PL/KS 7.98E-13 1.82E-09 7.46E-09 3.41E-08 0.300 4.021E+07 18.8 1998--2015 HTX leak rate > 50 gpm. Small internal leak times 0.02.
Dec-2016 HTX-ELS Heat Exchanger External Leakage (Small)
EPIX/RADS 65 269,796,800 h
1770 Gamma EB/PL/KS 9.77E-09 1.82E-07 2.79E-07 8.81E-07 0.867 3.100E+06 4.8 1998--2015 Dec-2016 HTX-ELL Heat Exchanger External Leakage (Rupture)
EPIX/RADS 65 269,796,800 h
1770 Gamma EB/PL/KS 4.48E-12 1.02E-08 4.19E-08 1.91E-07 0.300 7.168E+06 18.8 1998--2015 HTX leak rate > 50 gpm. Small external leak times 0.15.
Dec-2016 HTX-PG-CCW Heat Exchanger Plugging Non Standby EPIX/RADS 17 34,265,020 h
227 Gamma EB/PL/KS 5.34E-10 1.92E-07 5.33E-07 2.22E-06 0.398 7.470E+05 11.5 1998--2015 Dec-2016 HTX-CCW-LOHT CCW Heat Exchanger Fails to Control EPIX/RADS 17 34,265,020 h
227 Gamma EB/PL/KS 5.34E-10 1.92E-07 5.33E-07 2.22E-06 0.398 7.470E+05 11.5 1998--2015 Dec-2016 HTX-PG-NE-CCW CCW Heat Exchanger Plugging Non-ExEE (hr-1)
EPIX/RADS 7
34,265,020 h
227 Gamma EB/PL/KS 2.32E-10 7.56E-08 2.06E-07 8.51E-07 0.405 1.970E+06 11.2 1998--2015 Dec-2016 ICC-FA Failure of instrument and control for a turbine trip NUCLARR d
Lognormal NUCLARR 6.89E-04 1.52E-03 1.70E-03 3.33E-03 2.200 2.2 Jun-2005 ICC-FC Instrumentation and Control Circuit Fails NUCLARR d
Lognormal NUCLARR 6.89E-04 1.52E-03 1.70E-03 3.33E-03 2.200 2.2 Jun-2005 ACT-FC Automatic actuation and control circuit fails NUCLARR d
Lognormal NUCLARR 6.89E-04 1.52E-03 1.70E-03 3.33E-03 2.200 2.2 Dec-2011 MiscellaneousEquipment Instrumentation HeatExchanger (HTX)
Tank(TNK)
Pipe(PIPE)
CoolingTowerFan (CTF)
Accumulator(ACC)
Acronyms BWR(boilingwaterreactor),EB/PL/KS(empiricalBayes/plantlevel/KassSteffey),EPIX(EquipmentPerformanceandInformationExchange),JNID/IL(Jeffreysnoninformativedistribution/industrylevel),LL(lowerlimit),
PLL(processlogiclevel),PWR(pressurizedwaterreactor),SCNID(simplifiedconstrainednoninformativedistribution),SS(systemstudy),SWS(servicewatersystem),WSRC(WestinghouseSavannahRiverCompany)
Notea IfthesedistributionsaretobeusedaspriorsinBayesianupdatesusingplantspecificdata,thenacheckforconsistencybetweenthepriorandthedatashouldbeperformedfirst,assuggestedinsupportingrequirement DAD4cinReference59inNUREG/CR6928andoutlinedinSection6.2.3.5inReference17inNUREG/CR6928.
Noteb TheerrorfactorisfromanempiricalBayesanalysisattheplantlevel,withKassSteffeyadjustment.Theerrorfactor isthe95thpercentiledividedbythemedian.