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Category:Accident Sequence Precursor (ASP) Analysis
MONTHYEARML20168A7422020-06-16016 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-74-LTR)
ML20168A7412020-06-16016 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-73-007)
ML20168A7402020-06-16016 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-74-LTR)
ML20168A7392020-06-16016 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-73-005)
ML20161A1692020-06-0909 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-88-003)
ML20161A1602020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-86-039)
ML20161A1622020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-83-007)
ML20161A1632020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-85-019)
ML20161A1652020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-88-011)
ML20161A1682020-06-0909 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-85-011)
ML20161A1672020-06-0909 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-81-011)
ML20161A1612020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-82-008)
ML20161A1642020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-86-038)
ML20161A1662020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 251-87-001)
ML20140A2192020-05-19019 May 2020
Final ASP Analysis - Turkey Point, Unit 4 (LER 251-92-007).pdf
ML20140A2182020-05-19019 May 2020
Final ASP Analysis - Turkey Point 3 and 4 (LER 250-94-005)
ML20140A2172020-05-19019 May 2020
Final ASP Analysis - Turkey Point 3 and 4 (LER 250-92-S01)
2020-06-09
[Table view]
Category:Final
MONTHYEARML20168A7422020-06-16016 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-74-LTR)
ML20168A7412020-06-16016 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-73-007)
ML20168A7402020-06-16016 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-74-LTR)
ML20168A7392020-06-16016 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-73-005)
ML20161A1692020-06-0909 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-88-003)
ML20161A1602020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-86-039)
ML20161A1622020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-83-007)
ML20161A1632020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-85-019)
ML20161A1652020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-88-011)
ML20161A1682020-06-0909 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-85-011)
ML20161A1672020-06-0909 June 2020
Final ASP Analysis - Turkey Point 4 (LER 251-81-011)
ML20161A1612020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-82-008)
ML20161A1642020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 250-86-038)
ML20161A1662020-06-0909 June 2020
Final ASP Analysis - Turkey Point 3 (LER 251-87-001)
ML20140A2192020-05-19019 May 2020
Final ASP Analysis - Turkey Point, Unit 4 (LER 251-92-007).pdf
ML20140A2182020-05-19019 May 2020
Final ASP Analysis - Turkey Point 3 and 4 (LER 250-94-005)
ML20140A2172020-05-19019 May 2020
Final ASP Analysis - Turkey Point 3 and 4 (LER 250-92-S01)
2020-06-09
[Table view] |
Text
ailure of ANW Pumps to Auto-Start at Turkey Point 4 re sequence was:
g startup and low power physics testing, the turbine generator ol valves opened rapidly and excessively (reason unspecified).
result of high steam flow and reduced reactor coolant system rature, safety Injection actuated.
hree auxiliary feed pumps failed to start due to failure to ll 125V DC power supply fuses in the AFW punp auto-start logic its.
FW pumps were manually started.
e action:
fuses were installed and the auto-start logic circuits were ted to be operable.
rpose of failed system or component:
system provides automatic starting of the ANW pumps on safety
, steam generator low-low level, loss of voltage on the 4160V nd loss of both main feedwater pumps.
ility of system per WASH 1400: *ANW (start + 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />): 3.7 x 10-5 ility of component per WASH 1400: *Fuse: 1 x 10-6 /hr vailabilities are In units of per demand D-1 . Failure rates are in per hour HR-1 .
-up Unspecified) Flow and Low RCS Previous Failure Auxiliary Danage ng Tenperature to Install 125V Feed Punps DC Auto-Start Circuitry Fuses
- No
- Yes
- No ATWS
- No NSIC 81523 - Actual Occurrence for Failure of AFW Punps to Auto-Start at Turkey Point 4
No 1 No 2 Yes 3 Yes 4 No 5 No 6 Yes 7 Yes 8 No 9 No 10 Yes 11 Yes 12 Yes 13 81523- Sequence of Interest for Failure of AFW Pumps to Auto-Start at Turkey Point 4 cess requires manual start included In operating procedures
NUMBER: 81523 June 28, 1973 June 18, 1973 D: Auxiliary feedwater LVED: Fuses e to install TEREST: Loss of main feedwater NCE: Turbine/reactor trip and subsequent loss of main feedwater Turkey Point 4 50-251 PWR CAL RATING: 693 MWe 02 yr ghouse EERS: Bechtel rida Power and Light iles South of Miami, Florida hours G CONDITION- At power (low power testing)
TYPE OF FAILURE: (a) inadequate performance;D failed to start; (c) made inoperable; (d)____________
D: Operational event
