Pages that link to "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"
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The following pages link to 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:
Displayed 21 items.
- 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)
- 05000272/LER-1982-083, Supplemental LER 82-083/03X-1:on 821102,control Room Operator Observed Temp Recorder for Air temp-delta T Channels Not Printing.Caused by Failure of Pinion Gear on Chart Drive Motor.Motor Replaced (← links)
- 05000272/LER-1982-091, Supplemental LER 82-091/01X-1:on 821130,operator Discovered Leakage from Weld of Svc Water Piping to Component Cooling HX 12.Caused by Extensive Biofouling & Corrosion of Circumferential Welds (← links)
- 05000272/LER-1982-035, Supplemental LER 82-035/99X-1:on 820526,fire Pump 2 Failed to Start.Caused by Damaged Fire Pump Electrical Sys Voltage Regulator/Alternator,Due to Faulty Wiring Harness.Damaged Components Replaced (← links)
- 05000272/LER-1982-081, Supplemental LER 82-081/01X-1:on 821104,16 1,000-kip Steam Generator Snubbers Found Out of Spec on Bleed Test & Six Snubbers Failed Acceleration Test.Caused by Flattened Piston Seal Rubber Matl Due to Aging.Seals Rebuilt (← links)