Pages that link to "05000272/LER-1982-042, Supplemental LER 82-042/03X-1:on 820628,valves 12AF10 & 12AF86 Discovered Open.Caused by Personnel Negligence in Failure to Notice That Chains on Valves Improperly Installed.Valve Operation & Tagging Lesson Plans Revised"
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The following pages link to 05000272/LER-1982-042, Supplemental LER 82-042/03X-1:on 820628,valves 12AF10 & 12AF86 Discovered Open.Caused by Personnel Negligence in Failure to Notice That Chains on Valves Improperly Installed.Valve Operation & Tagging Lesson Plans Revised:
Displayed 50 items.
- 05000311/LER-1990-030 (← links)
- 05000311/LER-1990-027 (← links)
- 05000311/LER-1990-026 (← links)
- 05000272/LER-1981-092 (← links)
- 05000311/LER-1981-036 (← links)
- 05000311/LER-1982-018 (← links)
- 05000272/LER-1982-014 (← links)
- 05000311/LER-1982-019 (← links)
- 05000272/LER-1982-003 (← links)
- 05000272/LER-1982-028, Corrected LER 82-028/03L-0:on 820425,both Channels of Refueling Water Storage Tank (RWST) Level Indication Showed Less than Min Vol.Caused by Refilling Spent Fuel Pool. Makeup to RWST Initiated (← links)
- 05000311/LER-1982-084, Telecopy Message of LER 82-084/01P:on 820829,svc Water Leak on Containment Fan Coil Unit 23 Discovered.Leak Isolated.No Cause Stated.Investigation in Progress (← links)
- 05000311/LER-1982-015, Supplemental LER 82-015/03X-1:on 820221,discovered That Reactor Coolant Leak Rate Surveillance 4.4.7.2.d Due 820220 Not Performed Because Plant Had Not Been in steady-state Condition Due to 820219 Reactor Trip (← links)
- 05000311/LER-1981-089, Supplemental LER 81-089/03X-1:on 810817,during Routine Wear & Alignment Check,Auxiliary Feedwater Pump 23 Linkage Between Trip Mechanism & Valve Found Loose.Caused by Loose Bolts.Bolts Tightened (← links)
- 05000311/LER-1982-074, Corrected LER 82-074/01T-0:on 820813,control Operator Discovered Increased Leakage to Containment Sump.Caused by Coil Failures Due to Silt Particles in Svc Water.Leak Repaired by Blanking Flanges (← links)
- 05000272/LER-1982-042 (redirect page) (← links)
- ML20062D191 (redirect page) (← links)
- 05000272/LER-1982-042, Forwards LER 82-042/03L-0.Detailed Event Analysis Encl (redirect page) (← links)
- ML20066A666 (redirect page) (← links)
- 05000272/LER-1982-008, Supplemental LER 82-008/03X-1:on 820126,boric Acid Concentrations in Boric Acid Storage Tanks 11 & 12 Found Below Tech Spec Limit.Caused by Dilution of Concentration by Flushing Water in Tank Following Maint.Boric Acid Added (← links)
- 05000272/LER-1982-002, Supplemental LER 82-002/01X-2:on 820119,during Surveillance, Indications of Tube Thinning Detected by Eddy Current Exam. Tubes Above 30% Degradation Plugged.Tube R44C62 Sent to Westinghouse for Chemical & Metallurgical Testing (← links)
- 05000272/LER-1982-004, Supplemental LER 82-004/03X-1:on 820108,charging Pump 13 Declared Inoperable Due to Component Cooling Water Sys Being Tagged Out for Planned Maint.On 820109,positive Reactivity Change Found in RCS Boron Concentration (← links)
- 05000311/LER-1982-072, Supplemental LER 82-072/03X-1:on 820820,during Surveillance Testing,Discovered That Reactor Trip Breaker B Would Not Trip.Caused by Binding of Undervoltage Coil Solenoid.Coil Replaced & Breaker Reinstalled (← links)
- 05000311/LER-1982-002, Supplemental LER 82-002/03X-1:on 820111,battery Charger 2A1 Tripped.Charger Tripped Again Upon Resetting Breaker.Caused by Difference Between Battery & Battery Charger Voltages. Operating Instructions Revised to Adjust Float Vo (← links)
- 05000272/LER-1982-009, Supplemental LER 82-009/03X-1:on 820118 & 25,Cardox Fire Suppression Sys for 1A,1B & 1C Diesel Generator Areas & Fuel Oil Storage Area 12 Inoperable for More than 14 Days.Caused by Sys in Manual Mode Due to Maint Outage (← links)
- ML20066A684 (redirect page) (← links)
- 05000311/LER-1982-027, Supplemental LER 82-027/03X-1:on 820418,RCS Water Inventory SP(o)4.4.7.2.d Not Performed within Required Time Interval. License Change Request 82-14 Submitted to Eliminate RCS Water Inventory Requirement During Nonsteady State (← links)
- 05000272/LER-1979-068, Supplemental LER 79-068/03X-1:on 791018,safety Injection Pump Motor 12 Tripped on Overcurrent.Caused by Impeller Locknuts Improperly Secured at Mfg Facility.Pumps Reassembled Using Locktite Compound (← links)
- 05000272/LER-1983-062, Supplemental LER 83-062/99X-1:on 831122,during Testing on Seismic Instrumentation,Triaxial Time History Accelograph Did Not Respond as Required.Caused by Detector Failure. Accelerometer Replaced (← links)
- 05000272/LER-1981-059, Supplemental LER 81-059/01X-01:on 810616,during Initial Testing,Auxiliary Feedwater Pump 23 Turbine Steam Supply Check Valves 21MS46 & 23MS46 Found Damaged Internally.Caused by Steam Flow Sys Oscillations (← links)
- 05000272/LER-1976-002, Supplemental LER 76-002/01T:on 760822,Conde Milking Machine Co Model MX-16A (Containment Air Sample Pump for Air Particulate & Gaseous Radiation Monitors R11A,R12A & R12B) Failed.Caused by Bearing or Shaft Seal Seizure (← links)
- 05000272/LER-1976-004, Supplemental LER 76-004/03L:on 760902,during Transfer of 1A Vital Instrument Bus to Alternate Power source,1RH2 Closed,Resulting in Loss of RHR Flow to Rcs.Caused by tagged-open Supply Breakers (← links)
- 05000272/LER-1976-022, Updated LER 76-022/03L:on 761211,steam Generator 13 Level Transmitter LT-538 Failed.Cause Undetermined.Vendor Failed to Analyze Transmitter Before Repairs Made (← links)
- 05000272/LER-1976-030, Updated LER 76-030/03L:on 761228,during Sample Analysis of Boric Acid Storage Tanks 11 & 12,boron Concentration Noted Low.Cause Unknown.Chemical Analysis After Batching Confirmed Findings (← links)
- 05000272/LER-1983-023, Supplemental LER 83-023/01X-1:on 830602,notification Received from Westinghouse of Potential Unreviewed Safety Question Re Operation at Full Power Following Extended Reduced Power Operation.Procedures Implemented (← links)
- 05000311/LER-1982-141, Updated LER 82-141/03X-1:on 821121 & 1204,P-250 Computer Inoperable Due to Parity Error.Caused by Periodic Increases in Ambient Temp Due to Insufficient Ventilation.Computer Reprogrammed & Action Statement Terminated (← links)
- 05000272/LER-1982-029, Supplemental LER 82-029/03X-1:on 820501,during Surveillance Testing,Svc Water Flow to Containment Fan Coil Unit 12 Discovered Less than Required 2,500 Gallons Per Minute for Low Speed.Caused by Stuck Flow Control Valve (← links)
- 05000311/LER-1982-017, Supplemental LER 82-017/03X-1:on 820228,svc Water Flow Indicated Zero Upon Starting Containment Fan Coil Unit 22 (Cfcu).On 820301,svc Water Flow to Cfcu 23 Less than Required 2,500 Gpm.Caused by Stuck Valve (← links)
- 05000272/LER-1982-024, Supplemental LER 82-024/03X-1:on 820410,svc Water Flow to Containment Fan Coil Unit 12 Discovered to Be Less than Required 700 Gpm.Caused by Valve 12SW223 Being Stuck in Closed Position.Valve Exercised (← links)
- 05000311/LER-1982-001, Supplemental LER 82-001/03X-1:on 820110,steam Generator 24 Pressure Channel 4 Failed High.Caused by Ventilation Damper Stuck Open,Freezing Pressure Sensing Line.Damper Freed, Exercised & Closed (← links)
- 05000311/LER-1983-017, Supplemental LER 83-017/03X-1:on 810515,during Startup & Cycle 1 Operations,Leakage Past Pressurizer PORVs & Pressurizer Overpressure Protection Sys Values Observed. Cause Not Stated.Porvs Modified (← links)
- 05000272/LER-1983-012, Telecopy Message of LER 83-012/01P-0:on 830222,both Reactor Trip Breakers Failed to Open.Cause Not Yet Determined. Investigation Underway (← links)
- 05000311/LER-1983-007, Telecopy Message of LER 83-007/01P:on 830218,two 1,000-kip Steam Generator Snubbers Failed to Meet Lockup & Bleed Rate Velocity Requirements.Cause Not Stated.Investigation Continuing.Detailed Rept to Be Submitted in 14 Days (← links)
- 05000272/LER-1983-008, Supplemental LER 83-008/03X-1:on 830311,pressurizer Code Safety Valves 1PR3,1PR4 & 1PR5 Exceeded Lift Set Pressure Range & Had Heavy Seat Leakage.Partly Caused by Difference in Test Vs Actual Operating Conditions (← links)
- 05000272/LER-1982-090, Supplemental LER 82-090/01X-1:on 821121,video Insp of Removed Fuel Assemblies Revealed Cladding Ruptures on Element 13 in Fuel Assembly D-20.Caused by Isolated Instance of Secondary Hydriding (← links)
- 05000311/LER-1982-092, Supplemental LER 82-092/01X-1:on 820908,svc Water Leak Discovered on Containment Fan Coil Unit 21,rendering Unit Inoperable.Caused by Motor Cooler Erosion Due to Silt in Svc Water.Cooler Replaced (← links)
- 05000311/LER-1982-070, Supplemental LER 82-070/01X-1:on 830809,0.5 Gpm Svc Water Leak Observed on Containment Fan Coil 24.Caused by Failed Cooling Coil Resulting from Silt Erosion by Particles in Svc Water (← links)
- 05000311/LER-1982-024, Supplemental LER 82-024/03X-1:on 820328,sample Results from Boric Acid Storage Tank 21 & Boron Injection Tank 22 Indicated Concentrations Below Tech Spec Limit.Cause Unknown.Boric Acid Added (← links)
- 05000311/LER-1982-077, Supplemental LER 82-077/01X-1:on 820818,leakage Discovered from Containment Fan Coil 21.Caused by Erosion of Copper Nickel Piping.Cooling Coils Replaced w/erosion-resistant Matl (← links)
- 05000311/LER-1983-023, Corrected LER 83-023/03L-0:on 830117-0418,seven Containment Isolation Valves Experienced Leakage Rates Greater than Max Range of Test Equipment.Total Containment Type B & C Leakage Could Not Be Demonstrated.Valves Repaired (← links)
- 05000311/LER-1982-111, Telecopy Message of LER 82-111/01P:on 821002,during Routine Power Operation,Svc Water Leak Discovered Inside Containment Bldg on Containment Fan Coil Unit 23.Cause Undetermined.Rept Will Be Submitted Per IE Bulletin 80-24 (← links)
- 05000311/LER-1982-083, Supplemental LER 82-083/03X-1:on 820812,during Routine Surveillance,Control Room Operator Received Low Svc Water Flow Indication on Containment Fan Coil Unit (Cfcu) 25. Caused by Oysters or Silt Restricting Cfcu Flow (← links)
- 05000272/LER-1981-121, Supplemental LER 81-121/03X-1:on 811228,svc Water Leak in Spool Piece Discovered Between Valves 12SW57 & 58.Design Change Package 1EC-0504 Implemented to Replace Piece W/Stainless Steel for Improved Corrosion Resistance (← links)
- 05000311/LER-1984-010, Corrected LER 84-010-00:on 840423,during Startup Operations, Turbine Trip & Reactor Trip Occurred.Caused by hi-hi Level in Steam Generator 23.Feedwater Flow Nozzle Replaced & All Sys Performed as Designed (← links)