Semantic search

This page or action requires JavaScript to work. Please enable JavaScript in your browser or use a browser where it is supported, so that functionality can be provided as requested. For further assistance, please have a look at the noscript help page.

Options | Search Clear all entries |

Condition

Printout selection

Options

Parameters [+]

limit:

The maximum number of results to return

offset:

The offset of the first result

link:

Show values as links

headers:

Display the headers/property names

mainlabel:

The label to give to the main page name

intro:

The text to display before the query results, if there are any

outro:

The text to display after the query results, if there are any

searchlabel:

Text for continuing the search

default:

The text to display if there are no query results

class:

An additional CSS class to set for the table

transpose:

Display table headers vertically and results horizontally

sep:

The separator between results

prefix:

Control display of namespace in printouts

Sort options

Delete

Add sorting condition

ResultCodeDebugExtra

To embed this query inline into a wiki page use the code below.

{{#ask: [[Category:RO)]] [[Site::Grand Gulf]]
 |?Issue date
 |?Title
 |?Topic
 |format=table
 |limit=50
 |offset=0
 |sort=
 |order=asc
 |mainlabel=
 |searchlabel=[Table view]
}}

Results 1 – 50 previous 50 20 50 100 250 500 next 50

JSON CSV RSS RDF

Query log

{
    "query_string": "[[Category:RO)]] [[Site::Grand Gulf]]",
    "query_source": "SMWSQLStore",
    "query_time": "0.7071",
    "from_cache": false
}

	Issue date	Title	Topic
ML19325E633	27 October 1989	LER 89-014-00:on 890929,RWCU Sys Isolated on Simulated Steam Line Tunnel High Temp Signal.Caused by Operator Failure to Perform self-verification Prior to Moving Bypass Switch. General Manager Held Briefings w/personnel.W/891027 Ltr
ML19325E697	31 October 1989	LER 89-008-02:on 890523,two Redundant Secondary Containment Isolation Dampers Failed to Close within 4 Time Limit of Tech Spec 3.6.6.2.Caused by Malfunction of Exhaust Valves. Exhaust Valve replaced.W/891031 Ltr	Stroke time
ML19332F073	29 November 1989	LER 89-015-00:on 891030,no Data or Evidence Found for Stroke Time Test Required to Be Performed Following Maint on Bettis Actuator for Isolation Damper QSZ51F001.Caused by Personnel Error.Programmatic Enhancements initiated.W/891129 Ltr	Time of Discovery Stroke time
ML20005D741	6 December 1989	LER 89-016-00:on 891107,during Severe Thunderstorm,Lightning Struck Site,Causing Scram & HPCS Low Water Level Channels to Trip.Design Change Package Issued to Install Lightning Dissipation Sys on Vulnerable structures.W/891206 Ltr
ML20005G207	12 January 1990	LER 89-018-00:on 891215,design Basis Review of Instrumentation Determined That 71 Devices,Classified as nonsafety-related,contained in Class 1E Circuits.Caused by Level of Control on Instrument index.W/900112 Ltr
ML20005G212	12 January 1990	LER 89-007-01:on 890508,RWCU Sys Isolated on Leak Detection Differential Flow Signal While Shifting RWCU Operation from pre-pump to post-pump Mode.Probably Caused by Inadequate Reactor Pressure.Procedure revised.W/900112 Ltr
ML20006B278	16 January 1990	LER 89-017-00:on 890718,determined That Isolation for Postulated RWCU Blowdown Line Breaks in Piping Cold Rooms Was 80 S,Causing Plant to Operate in Unanalyzed Condition. Tech Spec Change Request Will Be submitted.W/900116 Ltr	Unanalyzed Condition
ML20006B873	29 January 1990	LER 89-019-00:on 891230,total Loss of Plant Svc Water Experienced Due to Loss of Power to Supply Wells.Caused by Malfunction of Microwave Info & Control Sys.Periodic Microwave Operational Checks established.W/900129 Ltr
ML20006E046	9 February 1990	LER 90-001-00:on 900112,determined That Tech Spec Reactor Coolant Cooldown Rate Limit of 100 Degrees F Exceeded in Reactor Bottom Head Drain Pipe.Caused by Programmatic Deficiencies.Incident Rept Form improved.W/900209 Ltr	Time of Discovery
ML20006E452	15 February 1990	LER 89-015-01:on 891030,no Data or Evidence Found That Stroke Time Test Performed on Bettis Actuator for Isolation Damper Following Maint.Caused by Programmatic Weaknesses.New Computer Field Data Added to Work orders.W/900215 Ltr	Time of Discovery Stroke time
ML20012A166	28 February 1990	LER 90-002-00:on 900124,discovered That Div II Solenoid Associated W/Secondary Containment Isolation Valve Did Not Operate During Quarterly Valve Stroke Time Tests.Caused by Procedure Inadequacy.Procedures changed.W/900227 Ltr	Stroke time
ML20012D480	16 March 1990	LER 90-003-00:on 900215,identified Potential Single Failure Scenario That Could Result in Unavailability of Both Core Spray Sys for Long Term post-LOCA Core Cooling.Detailed Heatup Evaluation Performed for Power bundle.W/900316 Ltr
ML20012D807	22 March 1990	LER 89-018-01:on 891215,determined That Inappropriate Quality Level Designations Applied to Class 1E Circuits, in Violation of Reg Guide 1.75.Caused by Discrepant Instrument Index Controls.Handswitch replaced.W/900228 Ltr	Earthquake
ML20023B554	28 April 1983	LER 83-060/03L-0:on 830329,during Cold Shutdown,Load Shedding & Div I LSS Sequencing Panel Failure Alarm Actuated.Caused by Failure of 15-volt Dc Power Supply Used to Power Solid State Electronics for Sys Logic
ML20023B673	27 April 1983	LER 83-061/03L-0:on 830328,one Solenoid Operated Freon Valve Found W/Blown Gasket.Caused by Defective Alco Controls Solenoid Operated Gasket.Valve Reworked W/Valve Repair Kit & New Gasket Installed
ML20023C551	9 May 1983	LER 83-048/01T-0:on 830423,suppression Pool Level Instrumentation Discovered Not Functionally Tested Since 830409.Cause Under Investigation.Instrumentation Tested Satisfactorily within 8 H
ML20023C559	9 May 1983	Updated LER 83-031/99X-1:on 830113,fire Rated Door OC104 Blocked Open to Route Temporary Discharge Hose from Hot Machine Shop Sump to Turbine Bldg Floor Drain Sys.Caused by Inadequacy of Present Sys.Mod to Be Completed by Sept 1983
ML20023C561	9 May 1983	Updated LER 83-004/01T-1:on 830110,penetration AP-72B Found Open & Had Been Open Since 821213.Caused by Planned Maint Work & Personnel Error.Hourly Fire Watch Established. Penetration to Be Resealed by 830630	Fire Watch Hourly Fire Watch
ML20023D251	9 May 1983	LER 83-049/03L-0:on 830409,during Cold Shutdown,Diesel Generator 12 Auto Start Not Available When Alarm Actuated. Caused by Condensate Drain Valve Downstream of Tank C Not Fully Closed.Compressors Reworked
ML20023D433	12 May 1983	LER 83-046/03L-0:on 830412,monthly Functional Surveillance for Div I Chlorine Detection Sys Not Performed by 830410. Caused by Personnel Error
ML20023D477	11 May 1983	LER 83-052/03L-0:on 830411,while Reviewing Vessel Head Installation Work Package,Discovered Head Flange/Vessel Flange Thermocouples Not Physically Reinstalled During Insulation Installation.Cause Under Evaluation
ML20023E044	27 May 1983	Updated LER 83-058/01X-1:on 830311,discovered That Fire Watches Not Conducted in Two Areas of Fire Detection Zone 2-19.Limiting Conditions for Operation Entered on 830227. Caused by Personnel Oversight.Zone restored.W/830527 Ltr	Fire Watch Hourly Fire Watch
ML20024B994	29 June 1983	LER 83-072/01T-0:on 830615,operations Shift Supervisor Discovered Some Continuous Fire Watches Not Performed on 830614.Caused by Personnel Error.Personnel Reinstructed Not to Pull Fire Watch W/O approval.W/830629 Ltr	Continuous fire watch Fire Watch
ML20024B998	24 June 1983	LER 83-070/03L-0:on 830525,reactor Water Cleanup Sys Isolated When Standby Liquid Control Pump B Breaker Closed. Caused by Personnel Error.Isolation Signal reset.W/830624 Ltr
ML20024C312	22 June 1983	LER 83-069/03L-0:on 830523,during Attempt to Reenergize Div II Motor Operated Valves,Shutdown Cooling Mode of RHR Sys & Reactor Water Cleanup Sys Isolated.Caused by Failure to Install Power Fuses.Fuses installed.W/830622 Ltr
ML20024C403	27 June 1983	LER 83-071/03L-0:on 830607,RHR Shutdown Cooling Mode Isolated When Valve E12-F009 Closed.Caused by Blown Fuse. Fuse replaced.W/830627 Ltr
ML20024D076	25 July 1983	LER 83-080/03L-0:on 830626,control Room Operators Experienced Problems W/Hvac Sys Involving Inadequate Cooling Capacity & Sys Losses.Partially Caused by Malfunctioning Condenser Cooling Water Flow Control valve.W/830725 Ltr
ML20024D089	25 July 1983	LER 83-079/03L-0:on 830625,auxiliary Trip Unit for High Drywell Pressure Indicated Trip Condition Yet No Reactor Protection Sys Trip Occurred.Caused by Defective Rosemount Auxiliary Trip Unit.Trip Unit replaced.W/830725 Ltr
ML20024D878	29 July 1983	LER 83-078/03L-0:on 830701,control Room Operators Unable to Maintain Air Receiver Pressure for Diesel Generator 11. Caused by Setpoint Drift on Relief Valves for diesel-driven & Electric motor-driven Air compressors.W/830729 Ltr
ML20024E874	31 August 1983	LER 83-108/01T-0:on 830817,radiation Monitor B Trip Setpoint Found High & Grab Samples & Analyses Started Late.Caused by Personnel Error.Personnel counseled.W/830831 Ltr	Grab sample
ML20024E911	30 August 1983	Updated LER 83-097/03X-1:on 830720,reactor Water Cleanup Auto Isolation Occurred.Caused by Delta Temp Channel B Indicating Temp Above Trip Point Limit.Investigation continuing.W/830830 Ltr
ML20024E931	29 August 1983	Updated LER 83-002/01X-1:on 830114,personnel Discovered Heat Detectors in Control Room Standby Fresh Air Sys Not Functionally Tested.Caused by Lack of Proper Procedure. Procedure rewritten.W/830829 Ltr	Missed surveillance Fire Watch Hourly Fire Watch
ML20024F209	29 August 1983	LER 83-111/03L-0:on 830730,during Performance of Work Order to Correct Malfunction W/Div I Isolation Reset Status lights,amphenol-type Signal Cable Connector in C/R Panel Disconnected.Caused by Personnel error.W/830829 Ltr
ML20024F456	31 August 1983	Updated LER 83-001/01X-2:on 830107,electrician Preparing to Route Cable Noticed Two Wall Penetrations Had Been Opened. Because Control Room Not Notified of Work,No Fire Watch in Effect.Caused by Personnel error.W/830831 Ltr	Fire Watch Hourly Fire Watch
ML20024F509	29 August 1983	LER 83-112/03L-0:on 830730,while Troubleshooting Initiation Circuitry to Find Reason for Improper Operation of E12F087B & F025B,partial LOCA Signal Occurred.Caused by Error in Work Order.Administrative Fix underway.W/830829 Ltr
ML20024F607	29 August 1983	Updated LER 82-050/99X-1:on 820806,Fire Detection Zone 2-10 Went Into Alarm Condition & Would Not Clear.Caused by Diesel Exhaust Fumes Drifting Into Corridor.Detectors Cleaned. Design Change submitted.W/830829 Ltr	Fire Watch
ML20024F613	29 August 1983	Updated LER 83-010/99X-2:on 830105,fire Protection Deficiencies on Redundant Raceways/Cables Discovered in Auxiliary,Turbine & Control Bldgs.Caused by Incomplete Const.Maint Work Now complete.W/830829 Ltr
ML20024G970	6 May 1991	LER 91-002-00:on 910406,operating Module Breaker in Automatic Turbine Tester Circuitry Tripped Open,Deenergizing Control Solenoid for change-over Valve.Caused by Use of Undersized Circuit Breaker.Module replaced.W/910506 Ltr
ML20027B211	9 September 1982	LER 82-036/03L-0:on 820803,zone 1-23 Smoke Detector in Upper Cable Spreading Room Deactivated Via Security Computer.Caused by Spurious Alarm W/O Smoke or Fumes.Hourly Fire Watch Established.Smoke Detector Cleaned & Reset	Hourly Fire Watch
ML20027B367	13 September 1982	LER 82-050/99X-0:on 820806,early Indication by Fire Detection Sys Covering HPCS Diesel Generator Room & Fresh Air Corridor Progressed Into Alarm State & Would Not Clear. Caused by Dirt in Ionization Detectors.Detectors Cleaned	Fire Watch
ML20027B760	22 September 1982	LER 82-059/01T-0:on 820909,setpoints for RHR Injection Valve Differential Pressure Switches Found High.Caused by Erroneous Procedure Listing Setpoint as 58 Psig Vs 43 Psig. Change Issued to Correct Procedures
ML20027B813	22 September 1982	LER 82-061/03L-0:on 820830,smoke Detector Zone Covering Standby Svc Water Pumphouse Alarmed & Would Not Clear.Caused by Dust Contamination of Ionization Smoke Detectors. Detectors Cleaned	Fire Watch
ML20027B873	22 September 1982	LER 82-058/03L-0:on 820823,control Room Fresh Air Units a & B Not Fully Operable Due to Failure of Filter Train Heater to Energize.Caused by Failure of Air Flow Sensor in a & B Heater Switch When Placed in Test Position
ML20027D284	28 October 1982	LER 82-078/03L-0:on 821005,battery Surveillance Procedure 06-E1-1111-W-0001 Revealed Voltage on Div 1 Dc Supply to Be 121.7-volts Dc Resulting in Reduction in Electrical Reserves.Caused by Errors in Maint Instruction 07-S-12-45
ML20027D321	28 October 1982	LER 82-084/03L-0:on 820929,control Room Indication Lost on Plant Chilled Water Auxiliary Bldg Isolation Valve 1P71F301 During Procedure 06-OP-1P71-Q-0001 Cycling.Caused by out-of- Adjustment Limit Switch.Switch Adjusted
ML20027D419	28 October 1982	LER 82-093/03L-0:on 820929,routine Surveillance Procedure 06-OP-1T42-Q-0001 Revealed Fuel Handling Area Vent Supply Isolation Damper Failed to Cycle Closed in Less than 5-s. Caused by Cup Seal Being Stretched Oversize.Seal Repaired
ML20027D437	13 October 1982	Corrected LER 82-075/99X-0:on 820915,steam Tunnel Fire Door IA230 Found Open W/No Fire Watch Stationed.Caused by Maint Work Which Required That Fire Door Remain Open.Fire Watch Established for Duration of Maint Work	Fire Watch Hourly Fire Watch
ML20027D463	28 October 1982	LER 82-096/03L-0:on 821001,fire Zone 2-04 Deactivated in Security & Fire Protection Computer Due to Inability to Reset Spurious Smoke Detector Alarm.Caused by Spurious Reaction,Not Component Failure.Alarm Reset	Hourly Fire Watch
ML20027D527	18 October 1982	Corrected LER 82-085/03L-0:on 820916,three Secondary Containment Penetrations Opened for Cable Routing Per Planned Maint Activity.Hourly Fire Watch Established During Maint.Penetrations Sealed	Hourly Fire Watch
ML20027D898	5 November 1982	LER 82-103/01T-0:on 821022,during Review of Documents Declaring HPCS Div III Diesel Generator Inoperative, Remaining Ac Source Operability Not Demonstrated.Caused by Personnel Error.Corrective Actions Undetermined

Semantic search

Query log

Navigation menu

Search