Semantic search
Jump to navigation
Jump to search
| Issue date | Title | Topic | |
|---|---|---|---|
| NPL-97-0565, LER 97-S02-00:on 970815,perimeter Zones,Doors & Cameras Were Lost.Caused by Inadequate Compensatory Measures Taken for Failed Multiplexer.Repaired Mux for e-field Zone 8 | 15 September 1997 | LER 97-S02-00:on 970815,perimeter Zones,Doors & Cameras Were Lost.Caused by Inadequate Compensatory Measures Taken for Failed Multiplexer.Repaired Mux for e-field Zone 8 | |
| NPL-97-0061, LER 97-S01-00:on 970204,compensatory Measures for Microwave Zones Had Not Been Implemented.Caused by Mgt Oversight of CAS & SAS Activities Was Inadequated.Addl Mgt Oversight of CAS & SAS Operations Has Been Implemented | 4 March 1997 | LER 97-S01-00:on 970204,compensatory Measures for Microwave Zones Had Not Been Implemented.Caused by Mgt Oversight of CAS & SAS Activities Was Inadequated.Addl Mgt Oversight of CAS & SAS Operations Has Been Implemented | High winds |
| 05000266/LER-1993-007 | 25 August 1993 | LER 93-007-00:on 930726,EDG Inadvertently Started and Station Battery Tripped Off Due to Undervoltage Signal. Caused by Blown Fuse as Result of Human Error During Calibr of 1A-06 Voltmeter.Fuse replaced.W/930825 Ltr | |
| 05000266/LER-1993-001, Revised LER 93-001-00:on 930107,all 4,160 Volt Degraded Grid Voltage Protection Channels Declared Inoperable Due to Discovery That Settings for Relays on Subj Channels Being Too Low.Plant Mods Will Be Made | 16 February 1993 | Revised LER 93-001-00:on 930107,all 4,160 Volt Degraded Grid Voltage Protection Channels Declared Inoperable Due to Discovery That Settings for Relays on Subj Channels Being Too Low.Plant Mods Will Be Made | |
| 05000266/LER-1992-004, Corrected LER 92-004-00:on 920515,determined That One Svc Water Pump & One Containment Ventilation Fan Sequenced Onto EDG More Times than Listed in Fsar,Section 8.2.3.Caused by Time Delay Relay Out of Tolerence.Evaluation Under | 9 July 1992 | Corrected LER 92-004-00:on 920515,determined That One Svc Water Pump & One Containment Ventilation Fan Sequenced Onto EDG More Times than Listed in Fsar,Section 8.2.3.Caused by Time Delay Relay Out of Tolerence.Evaluation Underway | |
| ML20077R518 | 14 August 1991 | LER 91-S01-00:on 910715,informed of Inadequate Preemployment Screening Process.Caused by Contractor Failure to Inform Util Employees Had Been Denied Access at Facility.Release & Authorization Form Revised | |
| 05000266/LER-1990-006 | 18 July 1990 | LER 90-006-00:on 900619,nuclear Instrumentation Turbine Runback Occurred.Caused by Spurious Signal Believed to Have Been Negative Spike.Voltage Spike Considered Spurious. W/900718 Ltr | |
| 05000266/LER-1985-002, Forwards LER 85-002-01 Re Details of Fuel Damage Found on Fuel Assembly H14,which Spent Last Cycle in Core Position D12.Rept Suppls Original Rept | 19 May 1986 | Forwards LER 85-002-01 Re Details of Fuel Damage Found on Fuel Assembly H14,which Spent Last Cycle in Core Position D12.Rept Suppls Original Rept | Fuel cladding |
| ML20203L028 | 25 April 1986 | Informs of Planned Site Visit to Obtain Info Supporting Implementation of Emergency Response Data Sys,Including Availability of PWR or BWR Parameters in Digital Form & Characterization of Available Data Feed Points | Backfit |
| 05000266/LER-1982-009, Telecopy Message of LER 82-009/01T-0:on 821030,tubes in Steam Generators a & B Found W/More than 40% Degradation.On 821025,insp Revealed 5 Wet or Dripping Explosive Plugs.No Cause Stated.Tubes Plugged | 1 November 1982 | Telecopy Message of LER 82-009/01T-0:on 821030,tubes in Steam Generators a & B Found W/More than 40% Degradation.On 821025,insp Revealed 5 Wet or Dripping Explosive Plugs.No Cause Stated.Tubes Plugged | |
| 05000301/LER-1982-005, Updated LER 82-005/01T-1:on 820727,discovered 2 of 3 Level Instruments on C Boric Acid Storage Tank Powered from Common Source.Cause Not Determined Due to Poor Early Maint of Documents.Wiring Corrected | 28 September 1982 | Updated LER 82-005/01T-1:on 820727,discovered 2 of 3 Level Instruments on C Boric Acid Storage Tank Powered from Common Source.Cause Not Determined Due to Poor Early Maint of Documents.Wiring Corrected | Boric Acid |
| ML20147C278 | 11 December 1978 | /03L on 781121:failure to Submit RO 50-366/78-55 W/In 30 Days.Caused by Deviation Rept 2-78-79 Not Received by Responsible Dept Head Nor Superintendent of Plant Engr Svcs.Personnel Were Reminded of Procedures | |
| ML20062E658 | 17 November 1978 | /01T-0 on 781106:turbine Runback Resulted from Safeguards Bus Tie Breaker Trip.Westinghouse Model CV-7 Undervoltage Relay on Tie Breaker Tripped Causing Breaker to Open.No Line Voltage Surges Detected | |
| ML20064E862 | 23 October 1978 | /01T-0 on 781009:snubber on Pressurizer Relief Line Was Found Inoperable.Grinnel Model HS-17,21/2 Inch X 5 Inch Bore & Stroke Snubber Failed for Undetermined Cause. Snubber Replaced & Surveillance Prog Expanded | |
| ML20062D453 | 13 October 1978 | /03L-0 on 780913:on 2 occasions,2 of 3 Charging Pumps Were isolated.2 3/4 Crosby Relief Valves Leaked Through Causing Temporary Loss of Charging Flow.Charging Pump Relief Valve Replaced & a Pump Returned to Svc | |
| ML20062D467 | 12 October 1978 | /01T-0 on 780928:reactor Coolant Sys Pressure Began Dropping at 25 Psi Per Minute;Pressurizer Spray Value 431B Found Partially Open Despite Shut Signal Due to 0 Set Point Drift Caused by Heat Degradation in Transducer | |
| ML20062D320 | 29 September 1978 | /1T-0 on 780928:reactor Coolant Sys Pressure; Dropped.Rate in Decrease Reached 25 Psig Per Minute. Pressure Decrease Caused by Failed elec-to-air Signal Converter |