Pages that link to "PNO-III-85-093B, on 851029,reactor Trip Breaker & Associated Undervoltage Trip Actuating Device Failed.Breaker Mods Expected to Be Completed on 851105.Elements of Confirmatory Action Ltr Met Except for Cause of Device Failure"
Jump to navigation
Jump to search
The following pages link to PNO-III-85-093B, on 851029,reactor Trip Breaker & Associated Undervoltage Trip Actuating Device Failed.Breaker Mods Expected to Be Completed on 851105.Elements of Confirmatory Action Ltr Met Except for Cause of Device Failure:
Displayed 28 items.
- PNO-III-85-099, on 851125,primary Coolant Sys Leaks Noted After Reactor Trip.Most Repairs Completed in Hot Standby. Remaining Leaks,In Two Safety Injection Check Valves & Gasket Flange for Coolant Pump,Scheduled for Cold Repair (← links)
- PNO-III-85-093, on 851029,reactor Tripped on Spurious Low Flow Signal in Primary Sys.Unit Will Remain Shut Down Until Licensee Investigation Completed & NRC Concurs W/Findings. Special Insp Team Dispatched.State of Mi Will Be Notified (← links)
- PNO-III-85-059, on 850716,facility Shut Down to Investigate Increasing primary-to-secondary Sys Leakage in Two Steam Generators.Cause Not Stated.Eddy Current Testing Will Be Performed to Locate & Plug Leaking Tubes (← links)
- PNO-III-92-045, on 920908,unit Shut Down Due to High Generator Vibrations.Cause Undetermined.Licensee Will Remove & Inspect Generator Rotor (← links)
- ML20151U706 (← links)
- PNO-III-86-010, on 860201,auxiliary Transformer 2DC on Fire at Bushing Atop Unit.Caused by Trip from 80% Power Due to Main Electrical Fault on Transformer.Repairs & Bus Alignments Evaluated to Facilitate Restart (← links)
- PNO-III-86-050, on 860528,at 90% Power,Unit Tripped Following Main Turbine Trip on Overspeed.Caused by Small Leakage in Pressurizer Spray Valve & Letdown Valve.Failure of intermediate-range Detector Under Investigation (← links)
- PNO-III-90-033, on 900524,licensee Declared Emergency Plan After 765KV Switchyard Breaker Opened Unexpectedly & Control Room Received Rept of Fire & Explosion.Caused by Burning Oil from Crosstie Breaker L.Unit 1 Reduced Power to 62% (← links)
- PNO-III-94-006, on 940121,licensee Commenced Shutdown of Unit 2 to Repair Steam Leak That Was Discovered in Vicinity of SG 1.Leak Was Repaired 940125 & Plant Has Commenced Startup (← links)
- ML20207G591 (← links)
- PNO-III-87-032, on 870302,slow,steady Increase in Primary to Secondary Steam Generator Tube Leakage Monitored.On 870303, Leak Estimated at 0.2 Gpm & Unit Taken Out of Svc.Tube Will Be Repaired & Surveillance & Maint Program Implemented (← links)
- PNO-III-86-096, on 860911,bomb Threat Received at Telephone Switchboard,Stating That Bomb Placed in Training Ctr.Ctr Evacuated & Facility Searched.No Bomb Found.Nrc Info Assessment Team Notified (← links)
- PNO-III-86-094, on 860910,federal Grand Jury in State of Mi Western District Indicted Util & Jg Del Percio W/Violations of NRC Fire Protection Requirements Occurring from Mar 1981 - Apr 1982 (← links)
- PNO-III-86-130, on 861105,during QA Audit of Contractor, Access Badges Removed Due to Inadequacies W/Screening Program.Employees Not Permitted to Return Until Screening Performed by Independent Organization (← links)
- PNO-III-86-072, on 860722,reactor Tripped While Operating at 90% Power.Caused by Workman Error While Attempting to Calibr Stator Cooling Water Pressure Switches.Util Will Proceed to Cold Shutdown for Repairs & Perform Snubber Surveillances (← links)
- ML20249B900 (← links)
- ML20249B306 (← links)
- ML20248L083 (← links)
- ML20236W949 (← links)
- PNO-III-87-100, on 870723,unusual Event Declared When Contractor Employee Wearing Slightly Contaminated Clothing Taken to Local Hosp.When Clothing Removed,Surveys of Individual & Hosp Showed No Contamination (← links)
- PNO-III-87-098, on 870714,undervoltage on Reactor Coolant Pump Bus Occurred.Caused by Tripping of Unit from 80% Power Due to Voltage Variation.Licensee Decided to Shut Down Unit to Repair Minor Leaks in Reactor Cooling Sys (← links)
- ML20216J707 (← links)
- PNO-III-87-113A, updates Util Evaluation of Defective & Incorrectly Installed Bolts in Facility Containment Access Area.Caused by Use of Improper Cutting & Welding Procedure. Evaluation Continuing (← links)
- ML20209H282 (redirect page) (← links)
- PNO-III-85-093B (redirect page) (← links)
- PNO-III-85-093C, on 851106,licensee Submitted Request for Restart Concurrence,Per 851030 Confirmatory Action Ltr.Insp & Testing of Reactor Trip Breakers Completed.Failed Breakers Shipped to Vendors for Testing & Evaluation (← links)
- PNO-III-82-073, on 820731,unit Shut Down After Tube Leak Rate of 0.17 Gpm Determined in Steam Generator 2.Licensee Estimates Unit Will Be Down for Several Days for Testing & Leak Location Activities (← links)
- PNO-III-82-076, on 820804,fuel Assembly Became Wedged in Device Used to Move Assemblies from Vertical to Horizontal Position for Movement Through Fuel Transfer Canal.Caused by Tilting Device in Horizontal Position Instead of Vertical (← links)