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| Issue date | Title | Topic | |
|---|---|---|---|
| ML17266A022 | 14 December 1978 | Reportable Occurrence 335-B-78-08 on 781117:condenser Temp Rise Exceeded 24 F,Caused by Circulating Water Sys Fouling, But Discharge Canal Temp Did Not Exceed 111 F Degrees | |
| ML17266A104 | 24 September 1979 | RO-335-79-30:on 790921,low Level Trip Setpoint of Reactor Protection Sys Steam Generator in Error by Approx 2%.Caused by Vendor Using Design Specs Rather than as-built Dimensions to Establish Instrument Span.Setpoint Raised | |
| ML17266A105 | 28 September 1979 | RO 335-79-31:on 790927,during Outage,Qa/Qc Verification of Installation of New Safety Injection Tank Sample Lines Revealed Four Raceway Clips Welded to Containment Vessel Wall.Clips Removed & Reinstalled in Proper Location | |
| ML17266A156 | 8 January 1980 | RO 335-B-79-05/B:on 791210,during Routine Checks of Recording Thermographs,Ocean Discharge Area Recording Thermograph Flotation Buoy Assembly Found Missing.Caused by Cable Failure from Rough Weather or Vandalism | |
| ML17266A160 | 17 March 1980 | RO 335-80-13:on 800314,while Plant Was in Cold Shutdown, Field Leads to Excitors on Both Diesel Generator Units Were Found Undersized.Caused by Design Error.Field Leads Will Be Replaced & Permanent Repair Studied | |
| ML17266A198 | 14 April 1980 | Ro:On 800411,determination Made That Rosemount Model 1152 Pressure Transmitters,Which Actuate Containment Vacuum Relief Valves FCV-25-7 & FCV-25-8,may Be Defective.Cause Not Stated.Transmitters Will Be Replaced | |
| ML17266A204 | 12 May 1980 | RO 335-80-25:on 800512,during Planned Secondary Plant Cooldown/Depressurization for Turbine Steam Seal Repair, Main Steam Header Would Not Depressurize Following MSIV Closure.Apparently Caused by Mispositioned Valve | |
| ML17266A211 | 15 May 1980 | RO 335-80-27:on 800514,C-E Informed Util That Partial Draining of RCS While in Mode 5 Is Condition Not Analyzed for Boron Dilution Event.Plant Operating Procedures Revised to Increase Shutdown Margin | Shutdown Margin |
| ML17266A216 | 11 June 1980 | RO 335-80-29:on 800611,ground Occurred on Bus 1B Dc Causing Containment Isolation Valve HCV-14-6 to Fail Closed. Apparently Caused by Water in Solenoid from Steam Leak. Cooldown Continuing.Damaged Valve Seals Will Be Replaced | |
| ML17266A452 | 24 April 1981 | RO 335-81-19:on 810410,notification Made to NRC of Analyses Utilizing FSAR Assumptions for Certain Postulated Accidents Using Assumption That Reactor Coolant Pressure Tripped Upon Receipt of Sias.Item Determined Not Reportable | |
| ML17301A150 | 21 January 1985 | Special Rept:On 841220,during Surveillance Run of Diesel Generator 2B While Unit Shut Down,Radiator Cooling Fan Hub Found Loosened & Cracked Circumferentially.Mod Issued to Eliminate Possibility of Set Screw Loosening | |
| ML19253B396 | 19 September 1979 | RO-335-79-30:on 790918,during Insp & Evaluation of Pipe Restraints & Supports,Two Restraints on ECCS Piping Sys Were Found to Be in Nonconformance.Both Restraint Errors Corrected | |
| ML20003B664 | 19 December 1980 | Nonroutine Environ Operating Rept 335-B-80-03:on 801202, Ocean Intake Area Recording Thermograph Sys Was Reported Missing.Probably Caused by Storm Surge Wave Action or Commercial Fishing.Sys Was Replaced on 801210 | |
| ML20011A799 | 26 October 1981 | RO 335-81-46:steam Generator Tube Eddy Current Test Performed in Ctr Area of B Steam Generator to Confirm Leak Located by Helium Test.Cause Not Stated.Testing of Rows 1-18 Will Be Completed within 2 to 3 Days | |
| ML20023C409 | 9 May 1983 | RO 389-83-005:on 830507,safety Injection Tank Isolation Valves Closed W/Plant in Mode 4 Above 276 Psia.Caused by Personnel Error.Procedural Step Overlooked During Plant Heatup.Valves Immediately Opened |