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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

List of results

• 05000271/LER-1976-042-03, /3L:on 761028,differential Pressure Switch DPIS 13-83 Discovered Actuated Above Water Limit During Surveillance Testing of RCIC High Steam Line Switches. Caused by Barton Model 288 Setpoint Drift  + (ML20086A169)
• ML20086A174  + (ML20086A174)
• 05000271/LER-1976-041-03, /3L:on 751025,low Ph/High Conductivity in Reactor Coolant Water Discovered During Normal Startup Following Shutdown for Control Pattern Rod Exchange.Caused by Failed Resin Trap & Loss of Water Sample Points  + (ML20086A175)
• 05000321/LER-1991-023, :on 911014,reactor Cavity Flooded & Train B of Standby Gas Treatment Sys Started But Sys Could Not Be Tripped.Caused by Blow Fuse in Control Room Panel.Fuse Replaced & Sys Secured  + (ML20086A176)
• 05000271/LER-1976-040-03, /3L:on 761019,UPS-1B Tripped During RHR Operability Testing on Motor Operated Valve RHR-27B.Caused by UPS-1B Logic Failure.Valve RHR-27B Manually Opened & Shut.Valves RHR-25B & RHR-27B Cycled W/O Tripping Unit  + (ML20086A177)
• 05000271/LER-1976-039-03, /3L:on 761012,discovered That No Charcoal Cartridge Samples Obtained for 761004-12 at Station 1.0 in Hinsdale, Nh.Caused by Failure to Turn Sample Switch to on Position  + (ML20086A179)
• 05000499/LER-1991-005, :on 910411,automatic ESF Actuation of Control Room Envelope HVAC Trains B & C to Emergency Mode Occurred. Cause Not Determined.Plant Records Reviewed & Root Cause Analysis Performed  + (ML20086A188)
• 05000271/LER-1976-038-03, /3L:on 761019,HPCI/condensate Storage Tank Level Switches 23-74 & 23-75 & Torus Water Level Switch 23-91A Would Not Actuate at Tech Spec Setpoint.Caused by Stuck Pivot Plate & Float,Respectively  + (ML20086A193)
• 05000271/LER-1976-037-03, /3L:on 761013,UPS-1B Trouble Alarm Received.Caused by Low Voltage of Teledynamics,Brute Iii,Series 400002B, Control Power Battery Due to Inoperative Voltage Regulator Circuit.Spare Power Supply Wired  + (ML20086A196)
• ML20086A207  + (ML20086A207)
• ELV-03217, TS Special Rept 1-91-6:on 911019 & 20,maint Start of Diesel Generator 1A Made for Functional Testing Purposes.Caused by Engine Speed Dropping Too Low & Low Turbocharger Lube Oil Pressure.Exhaust Gasket for Cylinder Head Replaced  + (ML20086A213)
• ML20086A216  + (ML20086A216)
• 05000271/LER-1976-025-03, /3L:on 760813,Exide 250 Kva Uninterruptible Power Supply Output Breaker Tripped,Resulting in Loss of Voltage to Motor Control Ctr 89B.Trip Caused by Noise Entering Unused Static Switch Open Sensing Circuit  + (ML20086A218)
• ML20086A219  + (ML20086A219)
• 05000271/LER-1976-036-03, /3L:on 760930,UPS-1A Trouble Alarm Received.Caused by Filter Capacitor Bank Fuse Clearing Due to Shorted GE Model 86F1323J Capacitor.Bank Will Be Repaired.Investigation Underway by Manufacturer  + (ML20086A220)
• ML20086A225  + (ML20086A225)
• 05000271/LER-1976-024-03, /3L:on 760630,drywell Air Purge Inlet Isolation Valve V-16-19-9 Found W/Seat Leakage Exceeding Tech Specs. Cause Not Determined.Valve Repaired  + (ML20086A233)
• ML20086A237  + (ML20086A237)
• 05000483/LER-1995-004, :on 950608,reactor Trip Automatically Initiated Due to Low Flow of RCS & Subsequent Trips of Pumps.Caused by Tree Limb on One Set of Transmission Lines. Limb Removed  + (ML20086A240)
• ML20086A243  + (ML20086A243)
• 05000293/LER-1991-021, :on 911009,RCIC Declared Inoperable Due to Lack of Sufficient Battery Charger Test Data.Caused by Unavailability of Backup Battery Charger.Alarm Response Procedure for Alarm Window I4 Changed  + (ML20086A248)
• ML20086A249  + (ML20086A249)
• ML20086A250  + (ML20086A250)
• 05000271/LER-1976-035-01, /1T:on 760920,LPCI Injection Valve RHR-25B Failed to Reopen Using Control Room Switch.Cause Not Determined. Investigation Underway by Walworth Co & Limitorque Corp  + (ML20086A253)
• ML20086A254  + (ML20086A254)

• ML20086A255  + (ML20086A255)

• 05000271/LER-1976-023-01, /1T:on 760724,false All Rods in Signal Received for Rod Manual Control Sys.Caused by Position Indicating Switch on Rod 34-07 Stuck in Closed Position Due to Failed Probe Buffer Card.Card Replaced & Tested  + (ML20086A256)
• ML20086A257  + (ML20086A257)
• ULNRC-03230, Application for Amend to License NPF-30.Amend Would Revise TSs to Implement Recommendations of GL 93-05 Re Reduction of SRs for Testing During Power Operation  + (ML20086A261)
• ML20086A263  + (ML20086A263)
• ML20086A264  + (ML20086A264)
• 05000271/LER-1976-034-03, /3L:on 760920,exide Power Sys 250-kV Uninterruptible Power Supply a Tripped,Resulting in Loss of Voltage to Motor Control Ctr 89A.Caused by Blown Inverter Leg Fuse Due to Failed Gate Firing Modules  + (ML20086A266)
• ML20086A271  + (ML20086A271)
• ML20086A275  + (ML20086A275)
• ML20086A277  + (ML20086A277)
• ML20086A278  + (ML20086A278)
• 05000271/LER-1976-033-03, /3L:on 760907,analysis of Two Carbon Samples from Standby Gas Treatment Train a Filter Revealed Efficiency Rating Below Tech Spec Limit.Cause Not Stated.Charcoal Filters Replaced  + (ML20086A279)
• ML20086A280  + (ML20086A280)
• ML20086A283  + (ML20086A283)
• ML20086A287  + (ML20086A287)
• ML20086A288  + (ML20086A288)
• 05000271/LER-1976-032-01, /1T:on 760914,redundant auto-open Contact Discovered Missing from Control Logic Design for Valves V10-27A & B.Caused by Failure to Provide Redundant Logic. Logic Transferred from Valve V10-25A & B  + (ML20086A290)
• U-601902, Monthly Operating Rept for Oct 1991 for Clinton Power Station,Unit 1  + (ML20086A294)
• JAFP-91-0732, Monthly Operating Rept for Oct 1991 for Ja Fitzpatrick Power Plant  + (ML20086A297)
• ML20086A300  + (ML20086A300)
• 05000271/LER-1976-031-03, /3L:on 760830,static-O-ring Pressure Switch PS5-12D,Model 12N-AA4,actuated Above Tech Spec Limit.Caused by Setpoint Drift.All High Drywell Pressure Switches Reset to Lower Tolerance Band Limit  + (ML20086A301)
• ML20086A302  + (ML20086A302)
• PY-CEI-NRR-1415, Monthly Operating Rept for Oct 1991 for Perry Nuclear Plant Unit 1  + (ML20086A304)
• ML20086A305  + (ML20086A305)
• NG-95-1971, Forwards Response to NRC Ltr Re Violations Noted in Insp Rept 50-331/95-05 on 950405-0509.Corrective Actions: Researched All Three of Maint Activities of Concern & Determined Calibrs Performed Correctly  + (ML20086A306)
• ML20086A308  + (ML20086A308)