ML18037A276: Difference between revisions
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| number = ML18037A276 | | number = ML18037A276 | ||
| issue date = 07/22/1980 | | issue date = 07/22/1980 | ||
| title = LER 80-011/04L-0:on 800623, | | title = LER 80-011/04L-0:on 800623,recorder Review Showed Condenser Inlet/Circulating Water Discharge Delta Temp Had Exceeded Tech Spec Limit on 800620-23.Station Load Reduced,Recorder Scale Expanded & Tech Spec Change Initiated | ||
| author name = HARRISON P | | author name = HARRISON P | ||
| author affiliation = NIAGARA MOHAWK POWER CORP. | | author affiliation = NIAGARA MOHAWK POWER CORP. | ||
Revision as of 16:27, 26 February 2018
| ML18037A276 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 07/22/1980 |
| From: | HARRISON P NIAGARA MOHAWK POWER CORP. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML17053B797 | List: |
| References | |
| LER-80-011-04L, LER-80-11-4L, NUDOCS 8007290600 | |
| Download: ML18037A276 (4) | |
Similar Documents at Nine Mile Point | |
|---|---|
Category:LICENSEE EVENT REPORT (SEE ALSO AO
MONTHYEARML18038A4131988-08-22022 August 1988
[Table view]LER 88-051-01:on 870813,shutdown Cooling Sys Isolated & Tech Specs 3.4.9.2 Exceeded.Caused by Equipment Failure,Personnel Error & Procedural & Design Deficiencies.Shutdown Cooling Sys Manually restored.W/880822 Ltr ML18038A4051988-07-0101 July 1988 LER 88-024-00:on 880605,ESF Actuation Occurred Due to Resetting of Failed Radiation Monitor Microcomputer.Caused by Lack of Personnel Training.Defective Cards & Modules in RE14B Microcomputer & DRMS Panel replaced.W/880701 Ltr ML18038A2581987-06-15015 June 1987 LER 87-025-00:on 870519,secondary Containment Isolation Signal Generated Due to Technician Relanding Lifted Lead Prematurely.Caused by Breakdown in Communications.Gaitronics Phone &/Or Headset Jack installed.W/870615 Ltr ML18004C0061987-04-13013 April 1987 LER 86-002-01:on 861104,procedure N2-OSP-RMC-W0002 Ran for Over 2 H Thereby Violating Tech Specs.Caused by Personnel Error & Procedure Deficiency.Temporary Change Notice Issued to procedure.W/870413 Ltr ML20028C8361983-01-0505 January 1983 LER 82-017/03L-0:on 821206,during Maint Outage,Leakage from Valves 68-06 & 68-09 Found Exceeding Tech Specs.Caused by Poor Seal Design.Mods Will Be Completed During Current Outage & Followed by Retest ML18037A3421981-06-0101 June 1981 LER 81-003 Has Been Cancelled ML18038A5441981-03-0404 March 1981 LER 81-007/03L-0:on 810202,during Weekly Surveillance,Diesel Fire Pump Oil Leak Was Identified.Caused by Leak in Coupling to Tubing Weld Joint.Joint Removed,Rebrazed & Returned to Svc ML18037A3281981-02-23023 February 1981 LER 81-004/01T-0:on 810209,main Steam Radiation Monitor 111 Signal Fluctuated,Causing Multiple Half Scrams.Caused by Loose detector-to-cable Connector.Connector Tightened ML18037A3211981-01-23023 January 1981 LER 80-033/03L-0:on 801224,auxiliary Power Feed Experienced Loss to Emergency Power Bus.Caused by Feeder Breaker Trip Due to Setpoint on Over Frequency Protective Relay Being Set Too Close to Nominal Frequency.Relay Recalibr ML18037A3231981-01-16016 January 1981 LER 80-032/03L-0:on 801216,one Filter Bank in Branch 11 of Emergency Ventilation Sys Found Leaking in Excess of Tech Spec.Caused by Defective Filter Sealing Gasket.New Filter Unit Installed ML18037A3141980-12-30030 December 1980 LER 80-031/01T-0:on 801216,feedwater Flow Control Valve Pneumatic Positioner Unit II Vented Excessive Amount of Air. Caused by Cracked & Worn Rubber Goods.Rubber Goods Replaced & Retested ML18037A3131980-12-29029 December 1980 LER 80-028/04T-0:on 801215,results of 801103,26 & 1201 Milk Sample Tests Showed Detectable I-131 at Three Locations. Caused by Chinese Nuclear Weapons Test During Oct.Plant Not Accountable for Detected Levels ML18037A3121980-12-26026 December 1980 LER 80-027/03L-0:on 801126,operability Tests Were Not Immediately Performed as Required.Caused by Misunderstanding of Intent of Procedure.Testing Performed ML18037A3091980-11-24024 November 1980 LER 80-025/03L-0:on 801028,stack Gas Monitoring Sys Rendered Inoperable When Inadvertently Left in Purge Operation Mode for 9.5-h.Caused by Technician Failing to Return Sys to Normal Operation.Monitor Returned to Operation ML18037A2981980-10-30030 October 1980 LER 80-024/03L-0:on 800930,during Audit,Discovered That Point Valve Was Not Recorded on 790721 Instrument Surveillance Test for Drywell High Pressure Trip Sys.Caused by Personnel oversight.Two-level Review Instituted ML18037A2961980-10-24024 October 1980 LER 80-022/03L-0:on 800927,low Power Range Monitor Detector Failed Rendering Average Power Range Monitor 18 Inoperable. Caused by Internal Shorting.Low Power Range Monitor Will Be Replaced During Next Refueling ML18037A2911980-09-29029 September 1980 LER 80-020/03L-0:on 800830,while Experiencing Electrical Storm During Normal Operation,Loss of Meteorological Data Transmission to Control Room Instruments Occurred.Caused by Transceiver Failure.Transceiver Repaired & Returned to Svc ML18037A2891980-09-0909 September 1980 LER 80-019/04T-0:on 800827,during NRC Insp at Normal Operation,Discovered Removable Bottom Door Seals of Outer Door of Reactor Bldg Track Bay Were Not Installed Properly. Caused by Personnel Error ML18037A3051980-09-0505 September 1980 LER 80-018/03L-0:on 800808,during Normal Operation, Emergency Diesel Generator 103 Fuel Oil Day Tank Low Level Alarm Was Received.Caused by Inadvertent Opening of Day Tank Drain Valve.Tank Refilled.Oil Valve Sys Locked ML18037A2831980-08-18018 August 1980 LER 80-015/04L-0:on 800804,during Steady State Operation, Offgas Monitoring Sys Inadvertently Placed in Purge Mode of Operation.Caused by Technician Error.Sys Returned to Normal Operating Mode,Restoring Sys Operability ML18037A2811980-08-0808 August 1980 LER 80-014/03L-0:on 800717,during start-up Performance for IE Bulletin 80-17 Auto Scram Test,Operability Test Attempted on Valve During Shutdown Period.Valve Failed to Open Upon Manual Initiation.Valve Removed & Disassembled ML18037A2781980-08-0101 August 1980 LER 80-012/03L-0:on 800419,during Surveillance Testing of Turbine Anticipatory Trip Bypass,Rx Scram Switch 02-13A Was Operating Outside Setpoint.Caused by Instrument Drift.Switch Readjusted & Will Be Tested Monthly ML18037A2761980-07-22022 July 1980 LER 80-011/04L-0:on 800623,recorder Review Showed Condenser Inlet/Circulating Water Discharge Delta Temp Had Exceeded Tech Spec Limit on 800620-23.Station Load Reduced,Recorder Scale Expanded & Tech Spec Change Initiated ML18037A2631980-06-0303 June 1980 LER 80-009/03L-0:on 800521,during Steady State Operation, Attempts to Stroke 122 Containment Spray Isolation Valve Failed.Caused by Isolation Valve Solenoids Being Dirty. Revising Procedures to Require Periodic Maint for Valve ML18037A2621980-06-0303 June 1980 LER 80-010/03L-0:on 800528,while Performing Valve Checks, Operator Discovered Cardox Tank Pressure Below Tech Spec Limits.Caused by Delivery of Too Low Temp Carbon Dioxide by Supplier.Low Pressure Alarm Connected ML18037A2431980-03-20020 March 1980 LER 80-007/03L-0:on 800303,while Shutdown for Maint,Attempts to Close Both Air Operated Outside Main Steam Isolation Valves Failed.Caused by Rust Buildup in Pilot Shuttle.New Instrument Air Sys Is Being Installed ML18037A2401980-02-15015 February 1980 LER 80-005/01X-0:on 800203,engineering Evaluation of GE SIL 299 Required That low-low Setpoint for Reactor Core Water Level Be Raised 20 Inches.Caused by Efforts to Precisely Measure Actual to Indicated Water Level Difference ML18037A2361980-01-21021 January 1980 LER 80-003/01T-0:on 800109,lab Analysis Not Performed on Charcoal Filter Samples from Rx Bldg & Control Room Emergency Ventilation Sys Per Tech Specs.Caused by Change in Operating Cycle Length.Will Revise Surveillance Schedule ML18037A2091979-11-19019 November 1979 LER 79-025/03L-0:on 791027,during Surveillance Testing, Personnel Unable to Zero Side Average Power Range Monitor Flow Converter 11.Caused by Component Failure.Entire Unit Replaced & Problem Eliminated ML18037A2071979-11-0202 November 1979 LER 79-023/03L-0:on 791004,cooling Water Pump of Diesel Generator 103 Tripped.Caused by Burned Contacts in Breaker. Breaker Repaired & Pump Started Manually.Preventative Maint Procedure Will Be Revised ML18037A2041979-10-0101 October 1979 LER 79-022/01T-0:on 790918,noted Failure to Install Seismic Constraint on Containment Spray Sys Outside Primary Containment Per Const Drawings.Initiated Design & Order to Install Constraint.Containment Spray Loop Inoperable ML18037A1971979-09-10010 September 1979 LER 79-019/03L-0:on 790816,during Steady State Operation, Routine Mgt Review Disclosed Failure to Complete Five Surveillance Tests on Schedule.Tests Immediately Performed & Completed.Personnel Instructed to Follow Published Schedule ML18037A1941979-09-0707 September 1979 LER 79-021/04T-0:on 790905,noted That Analysis of Excesssive Nuclide Water Sample Concentrations Was Not Completed within 30 Days.Caused by Late Rept by Contractor & High Influx of Samples.Addl Personnel Added ML18037A1881979-08-10010 August 1979 LER 79-018/03L-0 on 790726:vacuum Relief Sys Switch 68-12B Failed to Open at Proper Setpoint.No Cause Identified.Switch Adjusted to Proper Setpoint ML18037A1821979-07-0909 July 1979 LER 79-017/03L-0 on 790612:containment Spray Water Intertie Valves Leaked Causing Failure of Integrated Leak Rate Test. Valves Removed,Cleaned & re-installed ML18037A1771979-06-14014 June 1979 LER 79-011/03L-0 on 790517:during Refueling Outage, Discovered That Radiographer Received Overexposure of 3,790 Millirems for Second Quarter 1979.Cause Unknown & Under Investigation.Discussed Further in 790615 Ltr to NRC ML18037A1741979-05-31031 May 1979 LER 79-012/01T-0 on 790523:concrete Anchor Bolt Deficiencies & Missing Seismic Restraints Were Discovered on Class I Seismic Piping Sys.Caused by Incorrect Installation.Concrete Anchor Bolt Repair Program Will Be Completed by 791231 ML18037A1671979-05-0101 May 1979 LER 79-005/03L-0 on 790401:during Periodic Type C Leakage Test,Valves IV-68-06,IV-201-09,IV-201-10 & IV-58.1-02 Were Found to Be in Excess of Tech Specs.Cause Unknown.Repairs Will Be Made During Outage ML18037A1661979-04-23023 April 1979 LER 79-002/01X-1 on 790306:during Refueling Outage While Preparing Emergency Condenser Steam Nozzle 5-NB for Replacement of safe-end,discovered Inconel Weld Was Removed from Nozzle.New Safe End Installed ML18037A1411978-12-0808 December 1978 LER#78-040/03L-0 on 781113:#112 Core Spray Topping Pump Motor Breaker Closed Starting Pump But Breaker Closing Spring Motor Was Running Continuously & Not Charging Closing Spring.Caused by Misaligned Motor Assembly at Latching Pawl ML17053A2391978-11-14014 November 1978 LER#78-038/03L-0 on 781025:review of N1-ISP-RE22 Test Results Found 12 Instances Where Procedure Was Violated. Caused by Carelessness in Procedure Implementation. Re-instruction & Closer Supervision Instituted 1988-08-22 Category:RO) MONTHYEARML18038A4131988-08-22022 August 1988
[Table view]LER 88-051-01:on 870813,shutdown Cooling Sys Isolated & Tech Specs 3.4.9.2 Exceeded.Caused by Equipment Failure,Personnel Error & Procedural & Design Deficiencies.Shutdown Cooling Sys Manually restored.W/880822 Ltr ML18038A4051988-07-0101 July 1988 LER 88-024-00:on 880605,ESF Actuation Occurred Due to Resetting of Failed Radiation Monitor Microcomputer.Caused by Lack of Personnel Training.Defective Cards & Modules in RE14B Microcomputer & DRMS Panel replaced.W/880701 Ltr ML18038A2581987-06-15015 June 1987 LER 87-025-00:on 870519,secondary Containment Isolation Signal Generated Due to Technician Relanding Lifted Lead Prematurely.Caused by Breakdown in Communications.Gaitronics Phone &/Or Headset Jack installed.W/870615 Ltr ML18004C0061987-04-13013 April 1987 LER 86-002-01:on 861104,procedure N2-OSP-RMC-W0002 Ran for Over 2 H Thereby Violating Tech Specs.Caused by Personnel Error & Procedure Deficiency.Temporary Change Notice Issued to procedure.W/870413 Ltr ML20028C8361983-01-0505 January 1983 LER 82-017/03L-0:on 821206,during Maint Outage,Leakage from Valves 68-06 & 68-09 Found Exceeding Tech Specs.Caused by Poor Seal Design.Mods Will Be Completed During Current Outage & Followed by Retest ML18037A3421981-06-0101 June 1981 LER 81-003 Has Been Cancelled ML18038A5441981-03-0404 March 1981 LER 81-007/03L-0:on 810202,during Weekly Surveillance,Diesel Fire Pump Oil Leak Was Identified.Caused by Leak in Coupling to Tubing Weld Joint.Joint Removed,Rebrazed & Returned to Svc ML18037A3281981-02-23023 February 1981 LER 81-004/01T-0:on 810209,main Steam Radiation Monitor 111 Signal Fluctuated,Causing Multiple Half Scrams.Caused by Loose detector-to-cable Connector.Connector Tightened ML18037A3211981-01-23023 January 1981 LER 80-033/03L-0:on 801224,auxiliary Power Feed Experienced Loss to Emergency Power Bus.Caused by Feeder Breaker Trip Due to Setpoint on Over Frequency Protective Relay Being Set Too Close to Nominal Frequency.Relay Recalibr ML18037A3231981-01-16016 January 1981 LER 80-032/03L-0:on 801216,one Filter Bank in Branch 11 of Emergency Ventilation Sys Found Leaking in Excess of Tech Spec.Caused by Defective Filter Sealing Gasket.New Filter Unit Installed ML18037A3141980-12-30030 December 1980 LER 80-031/01T-0:on 801216,feedwater Flow Control Valve Pneumatic Positioner Unit II Vented Excessive Amount of Air. Caused by Cracked & Worn Rubber Goods.Rubber Goods Replaced & Retested ML18037A3131980-12-29029 December 1980 LER 80-028/04T-0:on 801215,results of 801103,26 & 1201 Milk Sample Tests Showed Detectable I-131 at Three Locations. Caused by Chinese Nuclear Weapons Test During Oct.Plant Not Accountable for Detected Levels ML18037A3121980-12-26026 December 1980 LER 80-027/03L-0:on 801126,operability Tests Were Not Immediately Performed as Required.Caused by Misunderstanding of Intent of Procedure.Testing Performed ML18037A3091980-11-24024 November 1980 LER 80-025/03L-0:on 801028,stack Gas Monitoring Sys Rendered Inoperable When Inadvertently Left in Purge Operation Mode for 9.5-h.Caused by Technician Failing to Return Sys to Normal Operation.Monitor Returned to Operation ML18037A2981980-10-30030 October 1980 LER 80-024/03L-0:on 800930,during Audit,Discovered That Point Valve Was Not Recorded on 790721 Instrument Surveillance Test for Drywell High Pressure Trip Sys.Caused by Personnel oversight.Two-level Review Instituted ML18037A2961980-10-24024 October 1980 LER 80-022/03L-0:on 800927,low Power Range Monitor Detector Failed Rendering Average Power Range Monitor 18 Inoperable. Caused by Internal Shorting.Low Power Range Monitor Will Be Replaced During Next Refueling ML18037A2911980-09-29029 September 1980 LER 80-020/03L-0:on 800830,while Experiencing Electrical Storm During Normal Operation,Loss of Meteorological Data Transmission to Control Room Instruments Occurred.Caused by Transceiver Failure.Transceiver Repaired & Returned to Svc ML18037A2891980-09-0909 September 1980 LER 80-019/04T-0:on 800827,during NRC Insp at Normal Operation,Discovered Removable Bottom Door Seals of Outer Door of Reactor Bldg Track Bay Were Not Installed Properly. Caused by Personnel Error ML18037A3051980-09-0505 September 1980 LER 80-018/03L-0:on 800808,during Normal Operation, Emergency Diesel Generator 103 Fuel Oil Day Tank Low Level Alarm Was Received.Caused by Inadvertent Opening of Day Tank Drain Valve.Tank Refilled.Oil Valve Sys Locked ML18037A2831980-08-18018 August 1980 LER 80-015/04L-0:on 800804,during Steady State Operation, Offgas Monitoring Sys Inadvertently Placed in Purge Mode of Operation.Caused by Technician Error.Sys Returned to Normal Operating Mode,Restoring Sys Operability ML18037A2811980-08-0808 August 1980 LER 80-014/03L-0:on 800717,during start-up Performance for IE Bulletin 80-17 Auto Scram Test,Operability Test Attempted on Valve During Shutdown Period.Valve Failed to Open Upon Manual Initiation.Valve Removed & Disassembled ML18037A2781980-08-0101 August 1980 LER 80-012/03L-0:on 800419,during Surveillance Testing of Turbine Anticipatory Trip Bypass,Rx Scram Switch 02-13A Was Operating Outside Setpoint.Caused by Instrument Drift.Switch Readjusted & Will Be Tested Monthly ML18037A2761980-07-22022 July 1980 LER 80-011/04L-0:on 800623,recorder Review Showed Condenser Inlet/Circulating Water Discharge Delta Temp Had Exceeded Tech Spec Limit on 800620-23.Station Load Reduced,Recorder Scale Expanded & Tech Spec Change Initiated ML18037A2631980-06-0303 June 1980 LER 80-009/03L-0:on 800521,during Steady State Operation, Attempts to Stroke 122 Containment Spray Isolation Valve Failed.Caused by Isolation Valve Solenoids Being Dirty. Revising Procedures to Require Periodic Maint for Valve ML18037A2621980-06-0303 June 1980 LER 80-010/03L-0:on 800528,while Performing Valve Checks, Operator Discovered Cardox Tank Pressure Below Tech Spec Limits.Caused by Delivery of Too Low Temp Carbon Dioxide by Supplier.Low Pressure Alarm Connected ML18037A2431980-03-20020 March 1980 LER 80-007/03L-0:on 800303,while Shutdown for Maint,Attempts to Close Both Air Operated Outside Main Steam Isolation Valves Failed.Caused by Rust Buildup in Pilot Shuttle.New Instrument Air Sys Is Being Installed ML18037A2401980-02-15015 February 1980 LER 80-005/01X-0:on 800203,engineering Evaluation of GE SIL 299 Required That low-low Setpoint for Reactor Core Water Level Be Raised 20 Inches.Caused by Efforts to Precisely Measure Actual to Indicated Water Level Difference ML18037A2361980-01-21021 January 1980 LER 80-003/01T-0:on 800109,lab Analysis Not Performed on Charcoal Filter Samples from Rx Bldg & Control Room Emergency Ventilation Sys Per Tech Specs.Caused by Change in Operating Cycle Length.Will Revise Surveillance Schedule ML18037A2091979-11-19019 November 1979 LER 79-025/03L-0:on 791027,during Surveillance Testing, Personnel Unable to Zero Side Average Power Range Monitor Flow Converter 11.Caused by Component Failure.Entire Unit Replaced & Problem Eliminated ML18037A2071979-11-0202 November 1979 LER 79-023/03L-0:on 791004,cooling Water Pump of Diesel Generator 103 Tripped.Caused by Burned Contacts in Breaker. Breaker Repaired & Pump Started Manually.Preventative Maint Procedure Will Be Revised ML18037A2041979-10-0101 October 1979 LER 79-022/01T-0:on 790918,noted Failure to Install Seismic Constraint on Containment Spray Sys Outside Primary Containment Per Const Drawings.Initiated Design & Order to Install Constraint.Containment Spray Loop Inoperable ML18037A1971979-09-10010 September 1979 LER 79-019/03L-0:on 790816,during Steady State Operation, Routine Mgt Review Disclosed Failure to Complete Five Surveillance Tests on Schedule.Tests Immediately Performed & Completed.Personnel Instructed to Follow Published Schedule ML18037A1941979-09-0707 September 1979 LER 79-021/04T-0:on 790905,noted That Analysis of Excesssive Nuclide Water Sample Concentrations Was Not Completed within 30 Days.Caused by Late Rept by Contractor & High Influx of Samples.Addl Personnel Added ML18037A1881979-08-10010 August 1979 LER 79-018/03L-0 on 790726:vacuum Relief Sys Switch 68-12B Failed to Open at Proper Setpoint.No Cause Identified.Switch Adjusted to Proper Setpoint ML18037A1821979-07-0909 July 1979 LER 79-017/03L-0 on 790612:containment Spray Water Intertie Valves Leaked Causing Failure of Integrated Leak Rate Test. Valves Removed,Cleaned & re-installed ML18037A1771979-06-14014 June 1979 LER 79-011/03L-0 on 790517:during Refueling Outage, Discovered That Radiographer Received Overexposure of 3,790 Millirems for Second Quarter 1979.Cause Unknown & Under Investigation.Discussed Further in 790615 Ltr to NRC ML18037A1741979-05-31031 May 1979 LER 79-012/01T-0 on 790523:concrete Anchor Bolt Deficiencies & Missing Seismic Restraints Were Discovered on Class I Seismic Piping Sys.Caused by Incorrect Installation.Concrete Anchor Bolt Repair Program Will Be Completed by 791231 ML18037A1671979-05-0101 May 1979 LER 79-005/03L-0 on 790401:during Periodic Type C Leakage Test,Valves IV-68-06,IV-201-09,IV-201-10 & IV-58.1-02 Were Found to Be in Excess of Tech Specs.Cause Unknown.Repairs Will Be Made During Outage ML18037A1661979-04-23023 April 1979 LER 79-002/01X-1 on 790306:during Refueling Outage While Preparing Emergency Condenser Steam Nozzle 5-NB for Replacement of safe-end,discovered Inconel Weld Was Removed from Nozzle.New Safe End Installed ML18037A1411978-12-0808 December 1978 LER#78-040/03L-0 on 781113:#112 Core Spray Topping Pump Motor Breaker Closed Starting Pump But Breaker Closing Spring Motor Was Running Continuously & Not Charging Closing Spring.Caused by Misaligned Motor Assembly at Latching Pawl ML17053A2391978-11-14014 November 1978 LER#78-038/03L-0 on 781025:review of N1-ISP-RE22 Test Results Found 12 Instances Where Procedure Was Violated. Caused by Carelessness in Procedure Implementation. Re-instruction & Closer Supervision Instituted 1988-08-22 Category:TEXT-SAFETY REPORT MONTHYEARML20217G2161999-10-15015 October 1999
[Table view]Errata Pages 2 & 3 for Safety Evaluation Supporting Amend 168 Issued to FOL DPR-63 Issued on 990921.New Pages Change Description of Flow Control Trip Ref Cards to Be Consistent with Application for Amend ML20217K4631999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Nine Mile Point, Unit 1.With ML20216J9251999-09-30030 September 1999 Suppl to Special Rept:On 990621,11 Containment Hydrogen Monitoring Sys Chart Recorder Was Indicating Below Normal Operating Range.Caused by Excessive Wear on Valve Body & Discs of Bypass Pump.Sample Pump Replaced ML20212F7301999-09-21021 September 1999 Special Rept:On 990907,CR Operators Declared 12 Containment Hydrogen Monitoring Sys Inoperable for Planned Maint.Cause of Low Flow Condition Was Determined to Be Foreign Matl. Replaced Sample Pump Valve Discs ML20212D3611999-09-21021 September 1999 Safety Evaluation Supporting Amend 168 to License DPR-63 ML20212B9081999-09-14014 September 1999 Special Rept:On 990901, 12 Containment Hydrogen Monitoring Sys Was Declared Inoperable for Planned Maint.Caused by Planned Maint Being Performed as Corrective Action.Check Valves with O Rings Were Replaced ML20212C4601999-08-31031 August 1999 Monthly Operating Rept for Aug 1999 for Nine Mile Point Nuclear Station,Unit 1.With ML20216F5141999-08-31031 August 1999 Rept on Status of Public Petitions Under 10CFR2.206 05000220/LER-1999-005-01, :on 990801,RT During Plant Startup on IRM Spiking Was Noted.Caused by electro-magnetic Interference. Inspected,Cleaned,Burnished & Tested IRM 11 Range Switch. with1999-08-30030 August 1999
1999-09-30 |