Pages that link to "ML20235G697"
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The following pages link to ML20235G697:
Displayed 50 items.
- PNO-V-86-025, on 860429,during Insp of multi-pin Connectors, Licensee Discovered Pin Engagement of Connectors May Be Insufficient & May Cause Open Circuit When Wires Moved.Both Trains of balance-of-plant ESF Declared Inoperable (← links)
- PNO-V-86-023, on 860426,ESF Load Sequencer for Train a Emergency Diesel Generator Inoperable.Caused by Broken Conductor in Relay Wire Discovered in Late 1985 But Mistakenly Considered Unimportant Grounding Path (← links)
- ML20203N872 (← links)
- PNO-V-86-063, on 860912,reactor Trip Occurred from Low Steam Generator Pressure When Four Channels of Steam Flow Lost. Caused by Shorting of Circuit Board.Outage Extended Past 48 H to Rebuild four-way Valve.Reactor Restarted on 860914 (← links)
- PNO-V-92-010, on 920331,plant Reactor Trip Breaker Failed to Open During Routine Surveillance Test.Licensee Has Unsuccessfully Attempted to Reproduce Failure,In Breaker Cubicle & on Test Stand in Electrical Shop (← links)
- PNO-V-86-042, on 860712,reactor Tripped from 100% Power on Low Steam Generator RCS Flow Channels a & B,Causing Turbine Generator Trip,Sys Voltage Fluctuation & Loss of Power.Cause Unknown.Plant Restored to Safe Shutdown Status (← links)
- PNO-V-86-093, on 861223,crankcase Malfunction Occurred in Train B Diesel Generator Engine.Cause Under Investigation. Fire Dept Personnel Injected Foam Into Crankcase Hole.Diesel Engine Extensively Damaged (← links)
- PNO-V-86-037, on 860701,licensee Initiated Shutdown from 30% Power Due to Increased Seal Leakage from Reactor Coolant Pump 2B.Shutdown Will Be Maintained to Replace Reactor Coolant Pump Seals.Outage Will Last 8-12 Days (← links)
- PNO-V-86-055, on 860828,reactor Trip Occurred Due to Generator/Turbine Trip.Caused by Overexcitation After Small Adjustment to Reactive Load.Vendor Contacted to Investigate Problem.Startup Schedule Pending (← links)
- ML20206M341 (← links)
- PNO-V-87-032, on 870422,small Stones in Bottom Hemispherical Head of Hot Leg Side of Steam Generator 1 Discovered.Work Activities in Steam Generators Suspended Until Primary Side of Steam Generators 1 & 2 Inspected (← links)
- PNO-V-87-039, on 870521,plant Worker Sprayed W/Reactor Coolant While Replacing Lead Shielding Around post-accident Sampling Sys.Worker Contaminated W/Radioactive Matl on Head & Shoulders.Investigation Initiated (← links)
- PNO-V-86-083, on 861119,facility Tripped on Steam Generator 1 Low Level.Caused by Failure of narrow-range Level Instruments & Steam Generator Level Oscillations.Plant Currently in Mode 3 Preparing for Restart by 861121 (← links)
- PNO-V-87-086, on 870510,reactor Shutdown Due to Inoperable Channel C 120-volt Ac Vital Inverter.Outage Tasks Will Include Surveillance Tests,Insp & Repair of Leaking Low Pressure Feedwater Heater & Equipment Problem Repairs (← links)
- ML20213F411 (← links)
- PNO-V-87-007, on 870117,valid High Radiation Alarm on Steam Generator 1 Blowdown Radiation Monitor Received.Caused by Primary to Secondary Leak in Steam Generator.Cooldown in Preparation for Entry Into Steam Generator Continuing (← links)
- PNO-V-86-020, on 850418,Unit 2 Reactor Was Brought to Criticality Following Dilution of Rcs.Estimated Critical B Was 1015 Ppm W/Group 5 Control Rod Bank 75 Inches Withdrawn. Resident Inspector Witness Approach to Initial Criticality (← links)
- PNO-V-86-094, on 861224,facility Tripped from 100% Power. Cause Believed to Be Electrical Malfunction on Vital Bus B. Definitive Cause of Malfuncion Under Investigation.Unit Will Be Maintained in Mode 3 Until Cause Identified (← links)
- PNO-V-87-058, on 870827,reactor Shutdown Commenced from 100% Power Level to Investigate Leak in Immediate Area of Valve Used in Refueling Level Monitoring.Caused by Crack in Valve. Valve Will Be Rewelded Following Weld Preparation (← links)
- ML20249A595 (← links)
- ML20249A134 (← links)
- IA-98-273, Partially Deleted Investigation Rept 5-93-023R.No Noncompliance Noted.Investigation Conducted to Determine Whether Technician Vacancy at Plant Had Been Discriminated by Plant (← links)
- ML20236U951 (← links)
- PNO-V-87-077, on 871125,facility Issued Full Power License. Unit Currently Operating in Mode 2 at Approx 3% Reactor Power.Licensee Plans to Commence Power Ascension Testing Following Entry Into Mode 1 (← links)
- ML20236N038 (← links)
- PNO-V-87-069, on 871015,licensee Informed Resident Inspectors of Findings from Ultrasonic Exams of Reactor Coolant Pump Shafts as Result of Mfg Experiences in Europe Re Crack Indicators at End of Impeller Keyway (← links)
- PNO-V-87-072, on 871029 Severe Thunderstorm Struck Site, Knocking Out One Source of Offsite Power & 26 of 39 Emergency Sirens in Maricopa County.Unit 1 Fuel Bldg Door Damaged & Two Individuals Standing Nearby Injured (← links)
- PNO-V-87-070, on 871025,reactor Brought Critical Following Dilution of Rcs.Actual Critical Boron Concentration 1,010 Ppm W/Group 5 Control Bank 60 Inches Withdrawn.Resident Inspector Witnessed Approach (← links)
- PNO-V-89-007, on 890303,main Generator Tripped Followed by Reactor Power Cutback Due to Main Generator Trip & Reactor Trip on Low Steam Generator 2 Pressure.Increase in One Containment Sump Level Was Noted (← links)
- PNO-V-87-052, on 870715,loose Copper Windings on Rotor Pole on Train B Diesel Generator Discovered.Caused by Mfg,Parsons Peebles,Improper Application of Resin &/Or Poor Workmanship. Mfg Expected Onsite to Discuss Course of Action (← links)
- PNO-V-87-050, on 870704,LPSI Pump a Tripped from Motor Overcurrent Condition & Smoke Alarm Received.No Fire Occurred.Caused by Low & Contaminated Oil in Lower Oil Reservoir.Lpsi Motor a Will Be Replaced W/Listed Model (← links)
- ML20234D144 (← links)
- PNO-V-87-049, on 870628,reactor Manually Shutdown from 100% Power as Result of Rupture in Train a Circulating Water Loop.Preliminary Insp Revealed Split Weld Seams in Several Places.Licensee Plans to Inspect Condenser Internals (← links)
- PNO-V-87-043, on 870605,discovered Through Wall Crack in Both 8R Cylinder Head & Piston Liner of Diesel Generator B.Cause Under Review.Piston Liner Replaced.Preparations Made to Install Spare Cylinder Head (← links)
- ML20215F770 (← links)
- PNO-V-86-071, on 861006,reactor Tripped from 20% Power on Low Dnbr.Caused by Feedwater Perturbations.Safety Injection Activated.All Safety Sys Responded as Designed (← links)
- PNO-V-87-042, on 870604,reactor Trip Occurred Due to Low Steam Generator Level.Caused by Malfunction in Automatic Feedwater Control Sys During Sys Troubleshooting/Testing. Investigation Into Cause of Malfunction Ongoing (← links)
- PNO-V-87-032A, licensee Investigations Into Manner in Which Small Stones Introduced Into Hot Leg Side of Steam Generator 1 Determined That Stones Carried Into Generator During Erection of Work Platform.Tubes in Generators to Be Plugged (← links)
- PNO-V-87-012A, on 870208,emergency Diesel 2A Fire Occurred. Caused by Failure of Fuel Line Compression Fitting at Point Where Fuel Line Connected to Right Cylinder Fuel Injector 5. Fuel Line & Fitting Replaced (← links)
- ML20210U805 (← links)
- PNO-V-86-028, on 860525,while Reducing Power for Turbine Overspeed Trip Test,Operator Error in Controlling Feedwater Flow Caused Reactor Trip.Sys Restored to Normal Mode 3.On 860526 Sys Started & Entered Mode 1 (← links)
- PNO-V-87-012, on 870208,fire Discovered in Emergency Diesel Train A.Apparently Caused by Ignition of Diesel Fuel Leaking from Separated Compression Fitting in Fuel Injection Line. Fire Extinguished & Room Quarantined Pending Investigation (← links)
- PNO-V-86-021, on 860423,cut Wire Identified in ESF Relay Cabinet.Investigation Underway to Determine If Wire Cut Deliberately or Accidentally.Cabinet Not Yet Energized (← links)
- ML20210A449 (← links)
- PNO-V-86-093A, notification of Util Determination of Cause of Crankcase Malfunction Which Occurred During Preoperational Testing of Train B Diesel Generator.Malfunction Result of Fatigue Cracking of Master Piston Rod 9 (← links)
- PNO-V-86-035, updates Review of Fire Protection Panel Miswiring & Closes Safeguards Action on PNS-V-86-005 & PNS-V-86-005A Concerning Suspected Attempted Sabotage/ Vandalism & 24,respectively (← links)
- PNO-V-93-009D, on 930325,leakage from Reactor Coolant Sys Occurred.Cause of Leak Not Determined (← links)
- PNO-V-86-037A, unit in Mode 5 Performing Replacement of Reactor Coolant Pump 2A & 2B Seals.Licensee Decided to Also Replace Pump 1A & 1B Seals as Preventive Measure.Plant Restart Projected for Latter Part of Wk (← links)
- ML20059K702 (← links)
- PNO-V-93-014, on 930811,NRC Was Informed That APS Supervisor Declined to Hire Contract Employee Because Employee Raised Safety Concerns at Plant & Elsewhere.Judge Ruled APS Discriminated Against Employee (← links)