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| Issue date | Title | Topic | |
|---|---|---|---|
| ML17264A938 | 10 July 1997 | Deficiency Rept Re Potential Safety Hazard Associated w/FM-Alco 251 Engin,High Pressure Fuel tube-catalog: 4401031-2 in Which Dual Failure Mode Exists.Caused by Incorrect Forming Process | |
| ML20094M625 | 21 November 1995 | Final Part 21 Rept of Investigation & Analysis of Suspect Fasteners Event 29257.B&G-Cardinal Discontinued Using Heat Treatment Equipment at Cardinal Facility Until Such Time That Satisfactory Mods Made to Hardware & Procedures | |
| ML20126J596 | 31 December 1992 | Part 21 Rept Re Potential Loss of RHR Cooling During Nozzle Dam Removal.Nozzle Dams May Create Trapped Air Column Behind Cold Leg Nozzle Dam.Mod to Nozzle Dams Currently Underway. Ltrs to Affected Utils Encl | Hydrostatic |
| ML20214M318 | 4 September 1986 | Potential Part 21 Rept Re Contromatics Actuator W/Jackscrew/ Handwheel Emergency Override Operator.Jackscrew/Handwheel Should Be Used for Emergency Manual Operation Only.Encl Ltr Also Sent to Listed Utils/Ae Firms | |
| DCL-85-282, Potential Part 21 Problem Re Pipe Clamps Mfg by Natl Valve & Mfg Co Reported to NRC on 850620 by Pacific Scientific Co. Facility Unaffected.No Class 1 Pipe Clamps Mfg by Natl Valve & Mfg Co Used | 29 August 1985 | Potential Part 21 Problem Re Pipe Clamps Mfg by Natl Valve & Mfg Co Reported to NRC on 850620 by Pacific Scientific Co. Facility Unaffected.No Class 1 Pipe Clamps Mfg by Natl Valve & Mfg Co Used | |
| DCL-85-074, Final Deficiency Rept Re Cracks in Welds on Pipe Rupture Restraints Made by Pullman Power Products.Unacceptable Welds Repaired or Modified | 22 February 1985 | Final Deficiency Rept Re Cracks in Welds on Pipe Rupture Restraints Made by Pullman Power Products.Unacceptable Welds Repaired or Modified | |
| ML20092K119 | 25 June 1984 | Part 21 Rept Adivising of Util Search of Records to Determine If Bahnson Co of Winston-Salem,NC Svcs Used by Util,Per Re Bahnson Co HVAC Equipment | |
| ML20092D971 | 15 June 1984 | Part 21 Rept Re Thermal Nonrepeatability & Other Calibr Errors in Barton Lot 1 Transmitters.Initially Reported on 840615.Transmitter Defects Identified & Expected Error Deviations Calculated.Utils Notified | |
| DCL-84-086, Final Deficiency Rept Re Malfunction of Valve Operator Mfg by Limitorque.Initially Reported on 830627.Existing Screws Will Be Replaced on Affected Valves Prior to Fuel Load.Maint Procedures Modified | 1 March 1984 | Final Deficiency Rept Re Malfunction of Valve Operator Mfg by Limitorque.Initially Reported on 830627.Existing Screws Will Be Replaced on Affected Valves Prior to Fuel Load.Maint Procedures Modified | |
| DCL-84-007, Final Deficiency Rept Re Containment Spray Initiation Timing.Timer Setting for Starting of Containment Spray Pump Changed from Original FSAR Table 8.3-4 Value to Value of 26 & 22 for Pumps 1 & 2,respectively | 9 January 1984 | Final Deficiency Rept Re Containment Spray Initiation Timing.Timer Setting for Starting of Containment Spray Pump Changed from Original FSAR Table 8.3-4 Value to Value of 26 & 22 for Pumps 1 & 2,respectively | |
| ML20082N643 | 29 November 1983 | Part 21 Rept Re Detection of Deficiences in Quality Resulting from Fraudulent Actions by Suppliers.Util QA Dept Designed to Aggressively Monitor Supplier Activities | |
| ML20082E658 | 10 November 1983 | Final Deficiency Rept Re Capstan Spring Tang Cracks in Pacific Scientific Model PSA-3 Snubbers.Three Snubbers Will Be Replaced Prior to Fuel Load | |
| ML20081H333 | 28 October 1983 | Interim Deficiency Rept Re Three Potentially Defective Pacific Scientific Model PSA-3 Snubbers.Initially Reported on 831012.Next Rept Will Be Submitted in 30 Days | |
| ML20072N989 | 8 July 1983 | Interim Part 21 Rept Confirming 830705 Telcon Re Anomalies in Artificially Aged Apparatus (Using Ahrrenius Methodology W/Elevated Temp Aging).Deficiency Found During Qualification Testing for IEEE 323-1974.Draft Notices Encl | |
| ML20024C393 | 27 June 1983 | Interim Deficiency Rept Re Malfunction of Limitorque Valve Operator.Initially Reported on 830526.Investigation Continuing to Confirm Extent of Problem & Determine Corrective Action.Final Rept to Be Submitted by Fuel Load | |
| ML20067B181 | 8 November 1982 | Final Deficiency Rept Re Water Hammer Phenomenon in Auxiliary Saltwater Sys.Initially Reported on 821008. Isolable Vacuum Breaker Added to Auxiliary Saltwater Sys to Eliminate Water Hammer Effect.Design Change Forthcoming | |
| ML20042A561 | 16 March 1982 | Interim Deficiency Rept Re Inadequate Design of Sys Contained in Annulus Area of Containment Bldg,Initially Reported 811105.Further Info of Progress Is Identified in Suppls to LER 81-002 | |
| ML20039E941 | 22 December 1981 | Final Deficiency Rept Re Containment Spray Sys Pipe Supports,Initially Reported 810918.Supports Reviewed, Qualified & Redesigned Per Corrected Support Loads.Changes to Be Completed Prior to Power Ascension | |
| ML20038A687 | 5 November 1981 | Deficiency Rept Re Design of Sys Contained in Annulus Area of Unit 2 Containment Bldg.Reviewing Affected Areas & Making Necessary Mods | |
| ML20010F845 | 27 August 1981 | Final Deficiency Rept Re Reactor Protection & Control Equipment,Initially Reported 810728.Addl Instructions Given to Personnel Re Requirements for Authorization of Work & Need for Review of Work Affecting Seismic Qualification | |
| ML20004F580 | 12 June 1981 | Interim Deficiency Rept Re 120 Volt Ac Vital Power Boards, Originally Reported 810514.Design of Neutral Block Attachments Will Be Modified.Final Rept by 810815 | |
| ML20004F757 | 12 June 1981 | Interim Deficiency Rept,Originally Reported on 810514,re Design Deficiency in 120 Volt Ac Vital Power Panelboards. Design of Neutral Block Attachment Screws Modified.Final Rept by 810815 | |
| ML20086D023 | 15 January 1975 | Final Deficiency Rept Re Steam Generator Primary Nozzle safe-ends.Initially Reported on 740329.Indications Removed by Grinding.Cracks Resulted from Intergranular Attack by Corrosive Environ.Corrective Steps Listed | Liquid penetrant |
| ML20086D028 | 28 August 1974 | Interim Deficiency Rept Re Exterior Surfaces of Unit 1 Steam Generator Nozzles.Initially Reported on 740424.Final Rept Submission Contingent on Conclusion of Repair Work,Presently Stalled by Series of Strikes | |
| ML20086D046 | 24 April 1974 | First Deficiency Rept Re Steam Generator Nozzle safe-end Cracking.Program of Exam & Investigation Begun.Cracking Is Superficial Surface Cracking Caused by Corrosive Attack Due to Exposure to Marine Environ.Final Rept Due 740601 | |
| ML20086D075 | 14 February 1974 | Final Deficiency Rept Re NSSS Primary Loop Piping Welding Discrepancies.Initially Reported on 731024.Unauthorized Departure from Approved Procedures Corrected.Full Insp Revealed No Detrimental Effects | Hydrostatic Liquid penetrant |
| ML20086D100 | 24 October 1973 | Preliminary Deficiency Rept Re NSSS Primary Loop Pipe Welding.Discrepant Conditions Discovered on 730920.Welding Halted Until Faulty Conditions Corrected.Wismer & Becker & Westinghouse Conducting Investigations | Non-Destructive Examination Liquid penetrant |
| ML20086D183 | 21 August 1973 | Deficiency Rept Re Failure of Valves Important to Safety to Meet Min Wall Thickness Requirements.Valve Verification Program Underway.Of 97 Valves tested,37 Set Aside for Further Testing.Results of Tests Forthcoming | |
| ML20086D134 | 31 May 1973 | Deficiency Rept Re Integrity of Thermoplastic Insulation Jacket on 4.16-kV Metalclad Switchgear Bus Bars,Nonvital 12- Kv Metalclad Switchgear Buses & Related Bus Ducts.Insulation Sys Approved for Repairs Meets ANSI Std C-37.20 | |
| ML20086D155 | 20 November 1972 | Deficiency Rept Re Reinforced Concrete Compartment Walls of Intake Structure.Design of Auxiliary Salt Water Pump Compartments Reviewed for Tsunami Loading.Design Satisfactory | Hydrostatic |