Semantic search
Jump to navigation
Jump to search
| Issue date | Title | Topic | |
|---|---|---|---|
| ML20043B586 | 24 May 1990 | Special Rept 90-004:on 900427,fire Barriers Nonfunctional for More than 7 Days.Caused by Planned Const Activities to Modify Primary Access Point.Fire Barriers Expected to Be Restored by 900701 | Fire Barrier |
| ML20043B605 | 24 May 1990 | Special Rept 90-005:on 900429,containment Bldg Personnel Hatch Opened to Support Maint Activities for More than 7 Days.Containment Personnel Hatch Closed & Declared Functional on 900509 | Fire Barrier |
| ML20042F756 | 1 May 1990 | Special Rept 90-003:on 900326,yard Fire Hydrant Inoperable for More than 14 Days in Order to Support Mods to Primary Access Point.Hydrant Returned to Svc on 900425 | |
| ML20006C517 | 1 February 1990 | Special Rept 90-002:on 900125,water Level in Both Fire Protection Water Storage Tanks Less than Tech Spec Limits. Pipe Will Be Evaluated to Determine Cause of Failure & Affected Section Will Be Replaced | |
| ML20006D253 | 31 January 1990 | Special Rept 90-001:on 900111,Train Reactor Vessel a Level Indicating Sys Inoperable for More than 7 Days.Replacement of Train a RVLIS Scheduled to Begin During Next Refueling Outage in Fall of 1990 | |
| ML20006B981 | 26 January 1990 | Ro:On 900125,fire Protection Water Storage Tanks Decreased Below Required Min Level Caused by Crack in Fire Protection Sys Yard.Crack Was Isolated & Level Restored to Above Min within Two Hours | |
| ML19332C828 | 21 November 1989 | Special Rept 89-005:on 891030,fire Barrier Penetration Open for More than 7 Days During Ninth Refueling Outage.Cause Not Stated.Continuous Fire Watch,Operability of Fire Detectors & Hourly Watch Patrol Established | Fire Barrier Continuous fire watch Hourly Fire Watch |
| ML19327B973 | 1 November 1989 | Special Rept 89-003:on 891013,fire Barrier Penetration Open for More than 7 Days During Ninth Refueling Outage.Hatches Opened to Support Outage Activities.Containment Personnel & Equipment Hatches Closed on 891014 | Fire Barrier Continuous fire watch Hourly Fire Watch |
| ML19327B970 | 1 November 1989 | Special Rept 89-004:during Refueling Outage,Six Steam Generator Tubes Exceeded Pluggable Limit Based on Eddy Current Testing Results.Total of 24 Steam Generator Tubes Plugged | |
| ML20050C108 | 12 March 1982 | Ro:During Low Power Physics Testing for Cycle 4,moderator Temp Coefficient in Hot Zero Power,Beginning of Cycle Condition Measured Greater than Required by Tech Spec. Control Rod Withdrawal Limits Established | |
| ML20050C122 | 12 March 1982 | Ro:On 820228,safety Injection & Reactor Trip Occurred During Attempt to Synchronize Unit.Also on 820228,boron Concentration in Boron Injecton Tank Fell Below Min Required Level | |
| ML20050B009 | 10 March 1982 | Ro:On 820310,inadvertent Actuation of Fire Protection Deluge Sys on Cooling Tower 1A Caused Levels in Fire Protection Tanks a & B to Fall Approx 85,000 Gallons.Caused by Maint Activities.Pressure Decrease Investigated | |
| ML20041A519 | 8 February 1982 | Ro:On 820101,fire Door 418 Declared Inoperable Due to Improper Closure.Door Repaired & Returned to Svc on 820114. Delay Due to Hardware Procurement | |
| ML20039E073 | 28 December 1981 | Ro:On 811226,containment Spray Additive Tank Isolation valve,V024,found in Closed Position Rendering Containment Spray Additive Tank Inoperable.Valve Opened & Locked. Investigation Underway.Further Details Forthcoming | |
| ML20039D305 | 18 December 1981 | Ro:On 811116,seal on Fire Barrier Cable Penetration 34-100-06 Damaged & Declared Inoperable.Cause Not Stated. Training in Administrative Requirements Will Be Given for Implementing Design Changes Re Breach of Fire Barrier | Fire Barrier |
| ML20039D309 | 17 December 1981 | Ro:On 811211,analysis Performed Indicating Fecal Coliform Value Too High to Calculate for Sewage Treatment Plant 2A.Caused by Chlorination Sys Malfunctioning Causing Chlorine Residual to Decrease | |
| ML20009F617 | 24 June 1981 | Ro:On 810518,during Plant Fire Marshall Insp,Fire Barrier Penetration in Cable Spreading Room Was Declared Inoperable, Due to Improper Sealing.Penetration Sealed,Inspected & Returned to Svc on 810613 | Fire Barrier |
| ML20009F840 | 11 June 1981 | Ro:On 810610,as Result of Inadvertent Actuation of Fire Protection Deluge Sys on Cooling Tower 2B,levels in Tanks a & B Fell to Approx 235,000 Gallons.Clipper Valve Opened & Deluge Sys Actuated | |
| ML20009G144 | 18 May 1981 | Ro:On 810515,fire Main in Low Voltage Switchyard Ruptured, Causing Protection Tanks a & B Levels to Fall Below Tech Specs.Cause of Initial Rupture Not Stated.Tank Returned to Acceptable Levels.Followup Will Be Provided | |
| ML20003F689 | 15 April 1981 | Ro:On 810321,cable Spreading Room Sprinkler Sys Was Declared Inoperable.Caused by Spurious Actuation of Sprinkler Sys. Smoke Detector Reset Switch Was Modified & Sys Returned to Svc | |
| ML19341B280 | 12 January 1981 | Ro:On 801227,one Tube in Steam Generator 1C Satisfactorily Plugged.Defective Tube Located by Pressurizing Secondary Side & Performing Visual Insp for Leaks.Tube Plugging Reported Per Tech Spec 4.4.5.5.a | |
| ML19257C592 | 21 January 1980 | Ro:On 791024,w/plant in Mode 4,train a Safety Injection Block Light Turned Off,Actuating Injection on Train A.Cause Undetermined.P/O Universal Card A416 Replaced.Logic Test Performed on Train a & Train Returned to Svc on 791025 | |
| ML19290B740 | 8 November 1979 | RO-79-055-01P:Westinghouse Notified Util of Potential for P-4 Permissive Failures to Remain Unidentified During Performance of Surveillance Tests.Details Will Be Provided in Followup Rept | |
| ML19210F026 | 7 November 1979 | RO-79-054-01P:on 791107,cooling Tower B Fire Resulted in Reduction of Fire Protection Tank Levels.Tanks a & B Fell to 120,000 Gallons.Tank Levels Will Be Returned to Min Acceptable Levels on 791107 | |
| ML19250A476 | 9 October 1979 | Nonroutine Environ Operating Rept:On 791008,inadvertent Gaseous Release Occurred During Maint on Waste Gas Decay Tank 8 Inlet Isolation Valve Bonnet.Caused by Faulty Instructions of Work Request & Inadequate Communication | |
| ML19209D137 | 8 October 1979 | Ro:On 791008,inadvertent Gas Release Occurred While Performing Maint on Waste Gas Decay Tank Inlet Isolation Valve Bonnet.Bldg Was Evacuated.Radiation Tests on Personnel Negative | |
| ML19253B355 | 20 September 1979 | Ro:On 790814,carbon Dioxide Fire Protection Sys for Diesel Generator Bldg Declared Inoperable.Caused by Malfunction of Carbon Dioxide Timers Associated W/Rooms 1-2A & 2R.Fire Watch Conducted Until Timer Replaced & Sys Operable | Fire Watch |
| ML19208B201 | 28 August 1979 | RO-79-041-01P:on 790825,Westinghouse Submitted Rept Re Heat Sink Shorting on Certain 7300 Series Printed Circuit Cards. Seismic Vibration Could Cause Card Guide Rubbing of Heat Sinks & Calibr Shift |