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| Issue date | Title | Topic | |
|---|---|---|---|
| ML19308A791 | 26 April 1976 | Annual Financial Rept 1975 | |
| ML19309B829 | 27 March 1980 | Pages 3-10 & B-1 & Table 3.1-1 of Offsite Dose Calculation Manual | Offsite Dose Calculation Manual |
| ML19309C331 | 31 October 1978 | 316(b) Predictive Study of Impingement & Entrainment. | Grab sample |
| ML19309C332 | 31 March 1980 | Consolidated Overview,Baseline Yr 1978-79. | |
| ML19309F928 | 8 April 1980 | Supplementary Deficiency Rept Re AH90 & NH90 Series Actuators Supplied by Itt General Controls.Itt General Control Will Supply Actuator Force Values & Torque & Damper Torque Values Will Be Compared.Customer List Encl | |
| ML19309G049 | 23 April 1980 | Deficiency Rept Re Control Rod Guide Tube Support Pin Cracking.Pin Cracking Was Found in Pins Having Solution Heat Treatment at Temp Less than 1,800 F.Replacement Pins Will Be Installed Prior to Operation | Stress corrosion cracking |
| ML19309G083 | 24 April 1980 | Significant Deficiency Rept SD 369-370/80-03 Re Control Rod Guide Tube Support Pins Potential for Cracking.Caused by Increasing Solution Heat Treatment Temp.Pins Will Be Replaced W/New Pins Solution Heat Treated at 2,000 F | Stress corrosion cracking |
| ML19309G771 | 2 May 1980 | Significant Deficiency Rept Re Certain Weld Sockets Not Meeting Applicable Quality Stds.Deficiency Discovered in IE Insp Rept 50-370/80-01.Corrective Actions Documented in 800305,27 & 0410 Ltrs | |
| ML19312C240 | 22 March 1977 | Annual Financial Rept 1976 | |
| ML19312D512 | 29 February 1980 | Significant Deficiency Rept 413-414/80-02 Re Three Relays & Trip Devices Not Meeting Relay time-current Characteristic Specs for Application.Caused by Copper Migration within Motorola Scrs.Relays & Trip Devices Will Be Changed | |
| ML19312E582 | 1 April 1980 | Significant Deficiency Repts 413/80-04 & 414/80-04 Re Improper Radiography of Containment Vessel Equipment Hatch. Hatch Mfg by Lakeside Bridge & Steel Co & Initially Radiographed by Mcmannus Testing Lab.Repairs by 800501 | |
| ML19316A465 | 12 April 1974 | Annual Financial Rept 1973 | |
| ML19316A467 | 9 February 1978 | Annual Financial Rept 1977 | |
| ML19316B225 | 31 May 1980 | Westinghouse Multiple Aperture Small Break ECCS Analyses. | Loop seal Hydrostatic Fuel cladding |
| ML19320A712 | 18 June 1980 | Deficiency Rept Re Faulty Connections in Electrical Equipment.As Described in 800201 Deficiency Rept SD 413-414/80-01,all Unit 1 safety-related Motor Control Ctr Equipment Has Been Inspected & Necessary Mods Completed | |
| ML19320C172 | 27 June 1980 | Part 21 Rept Re Valcor Valve Model V52600-554-1 Not Designed for Continuous Operation in Energized Mode.Valves Installed in Diesel Generator Control Air Sys | |
| ML19320C245 | 11 July 1980 | Deficiency Rept Re Rejectable Indications in Welding of Containment Vessel Equipment Hatch.Rejectable Weld Areas Ground Out & Weld Repaired Per Approved Procedures.Repaired Areas Examined & Found Acceptable on 800611 | |
| ML19320C329 | 7 July 1980 | Significant Deficiency Repts 369/80-07 & 370/80-06 Re Centrifugal Charging Pump Operation Following Secondary Side High Energy Line Rupture.Potential Exists for Inadequate Min Flow W/Damage to Pumps | |
| ML19321A896 | 8 July 1980 | Interim Part 21 Rept Re Defective Itt Actuators in Dampers. Customer Notification Encl.Jobs Classified Nonnuclear safety-related Are Not Reportable.Actuators Supplied for Other Jobs Are Considered Purchaser Responsibility | |
| ML19321B252 | 25 July 1980 | Deficiency Rept Re Improper Weld Configuration on Steam Generator Encl Stiffener Ring Connections.Cause Not Stated. Welds Have Been Modified to Meet Design Drawings.Personnel Reinstructed to Assure Compliance W/Design Drawings | Non-Destructive Examination |
| ML19322E856 | 27 March 1980 | Significant Deficiency Rept SD 369-370/80-02 Re Failure of Steam Generator Narrow Range Level Transmitter Cables to Meet Environ Qualification Requirements.Sixteen Cables in Unit 1 Will Be Replaced & New Cables Installed in Unit 2 | |
| ML19323A162 | 26 March 1980 | TMI-Plus One:Toward a Safer Nuclear Power Program. | |
| ML19323D333 | 15 May 1980 | Deficiency Rept SD 369/80-05 Re Cutler-Hammer Relay Contact Blocks W/Oversized Contact Compressions Springs.All Relays Equipped W/Type D26MF & D23MF Contact Blocks Having Date Codes 775,875,975 & 1075 Will Be Replaced | |
| ML19323E422 | 16 May 1980 | Significant Deficiency Repts 369/80-06 & 370/80-05:on 800417,notified of Valve Misapplication in Fire Protection Sys.Two Class H Valves Assigned Where Application Required Class F.Valves Replaced | Loop seal |
| ML19323G977 | 2 June 1980 | Significant Deficiency 413-414/80-06 Re Improper Radiography on Steam Generator Enclosures Mfg by Lakeside Bridge & Steel Co.Cause Unstated.Welds Radiographed in Accordance W/Asme. Close Surveillance Instituted to Prevent Recurrence | |
| ML19324B114 | 20 October 1989 | LER 89-024-00:on 890920,safety Review Group Staff Member Identified Committed Fire Door S102A as Possibly Inadequate. Caused by Design Deficiency.Fire Watch Established & Door repaired.W/891019 Ltr | Fire Barrier Fire Watch Hourly Fire Watch |
| ML19324B409 | 20 October 1989 | LER 89-025-00:on 890922,13.8 Kv Auxiliary Switchgear Deenergized Resulting in Loss of Power to Condenser Circulating Water Cooling Tower Fans.Power Reduction Due to Hurricane Hugo.W/891019 Ltr | High winds Earthquake Power change |
| ML19324C164 | 2 November 1989 | Revised Special Rept:On 890914,operations Determined That Pressurizer Level Indication in Standby Shutdown Facility Failed Low.Caused by Faulty Pressure Sensing Element.Faulty Transmitter Taken to Vendor for Repair.Transmitter Replaced | |
| ML19324C201 | 31 October 1989 | LER 88-019-02:on 880719,damper Compartment Flows Did Not Meet Flow Requirements Due to Closure of Some Sys Dampers. Caused by Defective procedure.As-found Measurements Taken While Operating Fans for Damper positions.W/891030 Ltr | Temporary Modification Operability Assessment Overexposure |
| ML19324C203 | 10 November 1989 | LER 89-024-00:on 890908,MSIV Stroke Timing Periodic Test Performed W/O Air Assistance & Three MSIVs Failed to Close within 5 S.Caused by Brass Guide Screws Excessively Tightened.Set Screws Properly set.W/891106 Ltr | Stroke time Overexposure |
| ML19325C196 | 4 October 1989 | LER 89-026-00:on 890823,tested Breaker Replaced W/Traceable Breaker in Response to Bulletin 88-010.Breaker Tripped. Caused by Mfg Deficiency.Work Request Written.Item Reportable Per Part 21.W/891003 Ltr | Past operability Operability Assessment |
| ML19325C473 | 18 September 1989 | LER 89-015-00:on 890722,discovered That Neutral Pressure Was Best That Could Be Achieved in Some Required Sys Configurations.Caused by Design Deficiency Due to Design Oversight.Outside Air Ref Point installed.W/891004 Ltr | Overexposure |
| ML19325C487 | 28 September 1989 | LER 89-018-00:on 890829,both Trains of Control Area Ventilation (VC) & Chilled Water (Yc) Sys Declared Inoperable.Caused by Equipment/Failure Malfunction. Refrigerant Added to Vc/Yc chiller.W/890928 Ltr | Overexposure |
| ML19325C638 | 11 October 1989 | LER 89-023-00:on 890915,Tech Spec 3.0.3 Entered Due to Both Trains of Control Room Area Ventilation Sys Being Inoperable.Caused by Defective pre-operational Testing Procedure.Train a Control Room Damper adjusted.W/891011 Ltr | Fire Watch |
| ML19325C640 | 11 October 1989 | LER 89-016-00:on 890913,four Channels of Power Range Instrumentation Showed Greater than 5% Allowable Mismatch Between Rated Thermal Power & Nuclear Power.Caused by Equipment Failure.Pneumatic Gauge replaced.W/891011 Ltr | |
| ML19325C644 | 11 October 1989 | LER 89-019-00:on 890912,capability of Switches 2CA-15A & 2CA-18B Disabled Rendering Feedwater Pumps 2A & 2B Inoperable.Caused by Defective Procedure & Inappropriate Actions.Procedure Revised & Update issued.W/891011 Ltr | |
| ML19325D203 | 30 September 1989 | Monthly Operating Repts for Sept 1989 for McGuire Nuclear Station,Units 1 & 2 | |
| ML19325D205 | 31 August 1989 | Revised Monthly Operating Rept for McGuire Nuclear Station, Units 1 & 2 | |
| ML19325D499 | 16 October 1989 | LER 89-027-00:on 890915,preheaters Did Not Start Because Air Flow Permissive Was Not Made & Cross Connect Dampers Were Closed & Tagged & Ventilation Sys Train a Remained Logged Inoperable.Caused by Design deficiency.W/891016 Ltr | Overexposure |
| ML19325E854 | 31 December 1988 | Annual Summary of Activities Performed Under 10CFR50.59 for 1988. W/891031 Ltr | Boric Acid |
| ML19325F342 | 13 November 1989 | Revised Special Rept:On 890914,pressurizer Level Indication in Standby Shutdown Facility Failed Low.Caused by Faulty Pressure Sensing Element.Rept Written to Replace Pressure Transmitters | |
| ML19326E210 | 17 July 1980 | Significant Deficiency Rept Re Centrifugal Charging Pump Operation Following Secondary Side High Energy Line Rupture, Initially Reported 800617.Inadequate Min Flow May Result in Degraded Pump Performance.Westinghouse Reviewing Problem | |
| ML19327A515 | 31 July 1980 | Significant Deficiency Rept SD 413-414/80-09 Re Lack of Radiation Cure on cross-linked Polyethylene Cable Conductor. During Installation of Heat Shrinkable Seals,Insulation on One Conductor Found Melted.Caused by Lack of Radiation Cure | Thermoset |
| ML19327A986 | 10 October 1989 | Ro:On 890922,loss of Power to Sirens Occurred Due to Power Lines Downed by Hurricane Hugo.Ler Will Be Submitted Re Event | Siren |
| ML19327B151 | 19 October 1989 | LER 89-026-00:on 890720,both Trains of Control Area Ventilation Sys Inoperable.Caused by Design Deficiency Because of Unanticipated Interaction of Components.Original Check Damper Reinstalled in Fan on Train B.W/891019 Ltr | Commercial Grade Overexposure |
| ML19327B477 | 23 October 1989 | LER 89-029-00:on 890922,ESF Actuation Occurred When Diesel Generator 1A Started Due to Momentary Undervoltage Condition on Train a 4,160-volt Essential Switchgear.Cause Unknown. Offsite Power Source Returned to Normal svc.W/891023 Ltr | High winds Overexposure |
| ML19327B561 | 26 October 1989 | LER 89-030-00:on 890714,visual Insp Revealed 3/4 Inch Open Conduit Connection Which Would Have Prevented Successful Leak Test.Cause Unknown.Connection Removed & Hole Sealed. W/891026 Ltr | Hydrostatic Operability Assessment Overexposure |
| ML19327B607 | 20 September 1989 | LER 89-025-00:on 890922,auxiliary Switchgear Deenergized, Resulting in Loss of Power to Condenser Circulating Water Cooling Tower Fans.Caused by Inoperable power-range Instrumentation Due to Hurricane Hugo.W/890920 Ltr | High winds Earthquake Power change |
| ML19327B627 | 23 October 1989 | Special Rept:On 890909,determined That Pressurizer Level Indication in Standby Shutdown Facility Failed Low.Caused by Faulty Pressure Sensing Element.Faulty Transmitters Taken to Vendor for Repair.Barton Transmitter Installed | |
| ML19327B636 | 25 October 1989 | Special Rept:On 890920,Unit 2 Diesel Generator 2A Declared Inoperable Due to Train a of Nuclear Svc Water Sys Being Taken Out of Svc.Diesel Generator a Tripped.Caused by Drifting of Temp Sensor.Sensor Replaced |