Pages that link to "NRC Form 3MA"
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The following pages link to NRC Form 3MA:
Displayed 50 items.
- NL-08-1906, LER 08-S01-00, for Edwin I. Hatch, Failure to Report Arrest Results in Inappropriate Access to Protected and Vital Areas (← links)
- ML20137L786 (← links)
- ML20147H258 (← links)
- ML20138Q549 (← links)
- ML20129G558 (← links)
- ML20203G365 (← links)
- 05000382/LER-1997-030, :on 971114,discovered TS 3.6.3 Noncompliance Due to Design Error Associates W/Cars & Civs.Caused by Inadequate Mod.Valve CAR-201B Declared Inoperable (← links)
- 05000277/LER-1989-019-01, :on 890830,discovered That Five Doors Requiring Monthly Functional Tests,Per Tech Specs,Not Included on Surveillance Test.Caused by Deficiency in Methodology & Refs Used During Surveillance (← links)
- 05000331/LER-1989-006, :on 890224,isolation of RCIC & on 890302, Isolation of HPCI Occurred.Caused by Problems in Electrical Path from Thermocouples Monitoring Area Temp.Retermination of Broken Thermocouple Wire Before Break (← links)
- 05000334/LER-1998-018, :on 980409,inadequate Beaver Valley Power Station Procedures to Ensure Compliance W/Tech Specs Were Noted.Caused by Inadequate Training of Procedure Writers.Revised Procedures (← links)
- 05000346/LER-1997-015, :on 971210,EDG Tachometer Circuit Was Noted Outside 10CFR50 App R Design Basis.Caused by Less than Adequate Development & Review of Mod 84-0183.Established Hourly Fire Watch in Cable Spreading Room (← links)
- 05000318/LER-1998-005-01, :on 980725,initiated Plant Cooldown Due to RCS Pressure Boundary Leakage.Caused by Crack in Inconel Alloy 600-type Weld Filler Matl of Nozzle.Leaking Penetration Was Repaired from Outside of Pressurizer (← links)
- 05000454/LER-1996-014, :on 960903,failure to Comply W/Design Basis Re Sf Storage Racks Was Noted.Caused by Deterioration as Result of Improper Matl Selection.Controlled SFP Boron Concentration & Silica Concentration (← links)
- 05000461/LER-1998-024, :on 980708,failure to Perform Surveillance Testing on Div II Voltage Relays within Specified Frequency of TS Was Noted.Cause of Event Is Under Investigation.Util Expects to Issue Rev to Rept by 980907 (← links)
- 05000336/LER-1998-015-01, :on 980504,channel Functional Testing of Digital Radiation Monitors Did Not Comply W/Ts.Caused by Inadequate Evaluation of Adequacy of Test Methodology. Procedure Changes Will Be Implemented (← links)
- 05000412/LER-1998-008-02, Revised LER 98-008-02:on 980609,GL 96-01 TS Instrumentation Surveillance Inadequacies Occurred.Caused by Inadequate Application of Tech Specs.Procedures Revised (← links)
- 05000458/LER-1998-003-02, :on 980624,adequacy of Division 1 & 2 DG Control Air Sys Was Noted.Root Cause Analysis Is Being performed.Multi-disciplinary Team Was Formed to Address Immediate & long-term Corrective Actions (← links)
- 05000219/LER-1998-002-01, :on 980227,480 V Switchgear Room Fire Barrier Deficiency Was Noted.Caused by Inadequate Fire Barrier Spec. Two of Seven Fire Zones Where Conduit Fire Barriers Are Installed Were Reviewed,No Deficiencies Found (← links)
- 05000219/LER-1998-003-01, :on 980303,failure to Perform High Drywell Pressure Check Surveillance Was Noted.Caused by Inadequate Procedure.Reviewed & Revised Appropriate Plant Documents & Provided Operator Training (← links)
- 05000313/LER-1997-001, :on 970408,inconsistencies Between Once Through SG Tube Destructive Examination Were Noted.Caused by Morphology Differences Between Flaws Used to Develop Sizing Technique.Discretion Was Verbally Approved (← links)
- 05000374/LER-1999-002-06, :on 990821,automatic Scram Occurred Due to Failure of Reactor Water Level Control.Caused by Inadequate Maint on 2A Tdrep Servo Valve 2FW163AA.Repaired Servo Valve (← links)
- 05000461/LER-1998-011, :on 980312,CR Ventilation Sys Was Declared Inoperable Due to Broken/Missing Conduit Hold Down Restraints on VC Chiller Skids.Caused by Personnel Walking on Equipment.Generated Work Requests (← links)
- 05000482/LER-1997-017, :on 970930,spent Fuel Storage Facility Crane Surveillances Were Not Met.Caused by Inadequate Procedural Guidance.Spent Fuel Bridge Crane Declared Inoperable Until Procedure Revised (← links)
- 05000327/LER-1985-019-01, :on 850524,inadequate Seismic Piping Supports Discovered.Caused by Personnel Errors.Drawing Discrepancies Re Both Pipes Corrected & Sk Series of Prints Superseded by 47W Series of Prints (← links)
- 05000219/LER-1998-016, :on 981028,single DG Start,Occurred.Caused by Loss of One Source of Offsite Power.Generator Relay Surveillance Revised to Eliminate Possibility of Inadvertent Procedural Breaker Trips.With (← links)
- 05000325/LER-1999-004-01, On 990325,drywell Pressure Instrumentation Sensing Line Deficiency,Was Determined.Caused by Incorrect Design & Installation of Instrument Sensing Lines.Associated Sensing Lines Were Purged.With (← links)
- 05000412/LER-1999-001-01, :on 990227,failure to Comply with TSs Due to Not Meeting Acceptance Criteria for Source Range Monitor During Surveillance Testing,Was Discovered.Caused by Lack of Attention.Procedure 20ST-2.3 re-performed.With (← links)
- 05000293/LER-1997-024, :on 971023,plant Valve Configuration for Inerting Primary Containment Was Outside Design Basis.Caused by Failure to Recognize Procedure Specified Valve line-up Could Result in Bypass Flow Path from Drywell Atmosphere (← links)
- 05000456/LER-1997-008-06, :on 971010,determined That Projected SG leak- Rate Combined W/Ts Limit for Dose Equivalent Iodine Creates Potential for Operation Outside Design Basis.Caused by Density Correction.Sgs Replaced (← links)
- 05000293/LER-1998-022, :on 981002,unplanned Actuation of a EDG Occurred During Surveillance Test of Related Logic Sys Testing.Caused by Util non-licensed I&C Technician Error. Will Review Surveillance Procedures.With (← links)
- 05000250/LER-1998-005-02, :on 980924,suspended Safeguards During Severe Weather Due to Personnel Safety.Caused by Severe Weather Associated with Effects of Hurricane Georges.Fully Instituted Compensatory Measure.With (← links)
- 05000373/LER-1998-015-02, :on 980819,manual Reactor Scram Occurred Following Level Control Transient.Caused by Failure of Control Card Associated with Bailey Rwl Cs.Replaced Failed Card with Refurbished Unit.With (← links)
- 05000334/LER-1998-028, :on 980811,reactor Trip Occurred.Caused by Cognitive Error by Involved Licensed & non-licensed Shift Operating personnel.F-MS-475 Repaired & Returned to Svc. with (← links)
- 05000382/LER-1997-012, :on 970404,programmatic Breakdown of Overtime Program Occurred.Caused by Lack of Mgt Oversight in Administering & Implementing Plants Working Hour Policy. Ltr Issued Reemphasizing Working Hour Policy (← links)
- 05000366/LER-1997-004-02, :on 970331,inaccurate List of Primary Containment Isolation Valves Resulted in Missed Surveillance.Caused by Listing of PCIS Valve Position Indications.Performed Missed Surveillance (← links)
- 05000409/LER-1985-019, :on 851026,partial Reactor Scram Occurred Due to Momentary Short in CRD Gas Pressure Circuit.Caused by Worn Mechanical Seal Allowing More Seal Water to Flow Through than Normal.Seal Leakage Reduced (← links)
- 05000346/LER-1985-016, :on 850802,determined That Strainers Still Installed in Suction Piping of HPI Pumps Not Considered in Operating Design.Caused by Failure to Remove Strainers Following Const.Strainers Removed (← links)
- 05000354/LER-1995-033-01, :on 951114,TS Surveillance Requirement Implementation Deficiencies Occurred.Caused by Lack of Documentation of Annunciation for Previous Surveillances. SDV Bypass Logic Were Satisfactorily Tested (← links)
- 05000382/LER-1992-018-01, :on 920930,loss of 3A3-S Safety Bus Experienced When Bus Feeder Breaker Tripped Open on Degraded Voltage Condition.Caused by Personnel Error.Design Change Package Implementation Process Will Be Revised (← links)
- 05000213/LER-1985-016, :on 850703,ex-core Channel Failed to Meet Acceptance Criteria for Dropped Rod Load Runback Setpoint During Nuclear Instrumentation Sys Surveillance.Caused by Setpoint Drift.Setpoint Recalibr (← links)
- 05000413/LER-1985-054, :on 850906,08,11 & 17,containment Noble Gas & Iodine Radiation Monitors EMF39 & EMF40 Tripped.Caused by Increased Containment Activity Due to Fuel Rod Cladding Leaks.Monitor Setpoints Revised (← links)
- 05000285/LER-1996-014, :on 961117,reactor Cooldown in Excess of Limits Occurred Due to Starting Reactor Coolant pumps.OP-2A & OI-RC-9 Will Be Revised (← links)
- 05000213/LER-1985-023, :on 850823,determined That Fire Protection Valves FP-V-231 & 234 Not Properly Tested.Caused by Misinterpretation of Tech Spec Requirements.Surveillance Procedure Sur 5.5-24 Revised (← links)
- 05000317/LER-1992-007, :on 921112,discovered Concern Re Shutting of ECCS min-flow Isolation Valves SI-659 & 660.Caused by Procedural Deficiency.Procedures & Testing Revised (← links)
- 05000302/LER-1992-026, :on 921208,replacement of Failed RCS Flow Transmitter Caused Voluntary Entry Into TS 3.0.3.No Corrective Actions Planned (← links)
- 05000302/LER-1992-023, :on 921110,oversight Discovered in Original App R Analysis Results in Operation Outside Design Basis. Analysis Failed to Realize That MUV-31 Could Fail While closed.MUV-31 Scenerio Reanalyzed (← links)
- 05000423/LER-1996-013-02, :on 960515,determined Design Deficiency in Residual Heat Removal System (Rhs).Caused by Original Plant Design.Corrective Actions Will Be Described in Supplement (← links)
- 05000423/LER-1996-007-01, :on 960403,CRS & Qs Sys Found Outside Design Basis Due to Design Errors.Restored Sys to Appropriate Design Basis Requirements Prior to Declaring Sys Inoperable (← links)
- 05000353/LER-1996-002-02, :on 960315,ESFA Occurred Due to Loss of Power to Rps/Ups Power Distribution Panel.Caused by Inadvertent Actuation of Underfrequency Relay.Created Necessary Addl Physical Barriers Arounds Units 1 & 2 (← links)
- 05000338/LER-1996-002, :on 960303,containment Particulate & Gaseous Radiation Monitors Inoperable.Caused by Inadequate Review of Containment Gaseous & Particulate Radiation Monitor. Suppl & Exhaust MOVs Shut (← links)