Forwards LER 80-027/03L-0
Person / Time
ML17053C191
Site:	Nine Mile Point
Issue date:	12/26/1980
From:	Dise D NIAGARA MOHAWK POWER CORP.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17053C192	List: 05000220/LER-1980-027, Forwards LER 80-027/03L-0 05000220/LER-1980-027-03, /03L-0:on 801126,operability Tests Were Not Immediately Performed as Required.Caused by Misunderstanding of Intent of Procedure.Testing Performed
References
NUDOCS 8101060540
Download: ML17053C191 (2)
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LER-1980-027, Forwards LER 80-027/03L-0

Event date:
Report date:
2201980027R00 - NRC Website
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text

tp V NIAGARA U MQHAWK NINE MILE POINT NUCLEAR STATION/P.O. BOX 32 LYCOMING, NEW YORK 13093/TELEPHONE (315) 343-2110 8ecembe/I.

26, 1980 Mn.. Boyee H. Gru.e/I, NAe~/I.

United Statu Nuet'.eau, Regulate/I.y CommQ amn Region I 631 Pa/I.k Avenue, G.ng o( P~am, PA.

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Licensee Event Report

Nine Mile Point

70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 |

90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |

10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 |

		Reporting criterion
05000220/LER-1980-001-03, /03L-0:on 800102,during Steady State Operation, Calculations Determined Planar Linear Heat Generation Rate Exceeded Tech Specs.Cause Unknown.Power Decreased. Calculation Revealed Heating Generation Rate within Limits	/03L-0:on 800102,during Steady State Operation, Calculations Determined Planar Linear Heat Generation Rate Exceeded Tech Specs.Cause Unknown.Power Decreased. Calculation Revealed Heating Generation Rate within Limits
05000220/LER-1980-001, Forwards LER 80-001/03L-0	Forwards LER 80-001/03L-0
05000220/LER-1980-002, Forwards LER 80-002/04L-0	Forwards LER 80-002/04L-0
05000220/LER-1980-002-04, /04L-0:on 800109,during Steady State Operation, Review of Differential Recorder Revealed Condenser Inlet/ Screenwell Discharge Differential Temp Went Over Established Limits.Caused by Instrument Malfunction	/04L-0:on 800109,during Steady State Operation, Review of Differential Recorder Revealed Condenser Inlet/ Screenwell Discharge Differential Temp Went Over Established Limits.Caused by Instrument Malfunction
05000220/LER-1980-003-01, /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	/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
05000220/LER-1980-003, Forwards LER 80-003/01T-0	Forwards LER 80-003/01T-0
05000220/LER-1980-005-01, /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	/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
05000220/LER-1980-005, Forwards LER 80-005/01X-0	Forwards LER 80-005/01X-0
05000220/LER-1980-006, Forwards LER 80-006/04L-0	Forwards LER 80-006/04L-0
05000220/LER-1980-006-04, /04L-0:on 800123-24,condensor Inlet/Circulating Water Discharge Temp Exceeded Tech Spec Limit.Following Flow Reversal,Discharge Temp Exceeded Lake Ambient by More than Tech Spec Limit.Caused by Instrument Failure	/04L-0:on 800123-24,condensor Inlet/Circulating Water Discharge Temp Exceeded Tech Spec Limit.Following Flow Reversal,Discharge Temp Exceeded Lake Ambient by More than Tech Spec Limit.Caused by Instrument Failure
05000220/LER-1980-007, Forwards LER 80-007/03L-0	Forwards LER 80-007/03L-0
05000220/LER-1980-007-03, /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	/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
05000220/LER-1980-008, Forwards LER 80-008/03L-0	Forwards LER 80-008/03L-0
05000220/LER-1980-008-03, /03L-0:on 800315,during Steady State Operation, Alarm in Control Room Signaled Loss of Flow to Stack Gas Sampling Sys.Caused by Stack Sample Flow Inlet Valve Failing Closed,Due to Arcing Relay Contacts	/03L-0:on 800315,during Steady State Operation, Alarm in Control Room Signaled Loss of Flow to Stack Gas Sampling Sys.Caused by Stack Sample Flow Inlet Valve Failing Closed,Due to Arcing Relay Contacts
05000220/LER-1980-009, Forwards LER 80-009/03L-0	Forwards LER 80-009/03L-0
05000220/LER-1980-009-03, /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	/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
05000220/LER-1980-010, Forwards LER 80-010/03L-0	Forwards LER 80-010/03L-0
05000220/LER-1980-010-03, /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	/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
05000220/LER-1980-011, Forwards LER 80-011/04L-0	Forwards LER 80-011/04L-0
05000220/LER-1980-011-04, /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	/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
05000220/LER-1980-012-03, /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	/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
05000220/LER-1980-012, Forwards LER 80-012/03L-0	Forwards LER 80-012/03L-0
05000220/LER-1980-014-03, /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	/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
05000220/LER-1980-014, Forwards LER 80-014/03L-0	Forwards LER 80-014/03L-0
05000220/LER-1980-015, Forwards LER 80-015/04L-0	Forwards LER 80-015/04L-0
05000220/LER-1980-015-04, /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	/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
05000220/LER-1980-018-03, /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	/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
05000220/LER-1980-018, Forwards LER 80-018/03L-0	Forwards LER 80-018/03L-0
05000220/LER-1980-019, Forwards LER 80-019/04T-0	Forwards LER 80-019/04T-0
05000220/LER-1980-019-04, /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	/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
05000220/LER-1980-020, Forwards LER 80-020/03L-0	Forwards LER 80-020/03L-0
05000220/LER-1980-020-03, /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	/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
05000220/LER-1980-022-03, /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	/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
05000220/LER-1980-022, Forwards LER 80-022/03L-0	Forwards LER 80-022/03L-0
05000220/LER-1980-023, Forwards LER 80-023/03L-0	Forwards LER 80-023/03L-0
05000220/LER-1980-023-03, /03L-0:on 800922,111 Absolute Filter Access Cover Was Found Off Housing.Caused by Residual Pressure in Containment Nitrogen Inerting Line Pressurizing Filter Housing When Torus Venting Initiated.Cover Reinstalled	/03L-0:on 800922,111 Absolute Filter Access Cover Was Found Off Housing.Caused by Residual Pressure in Containment Nitrogen Inerting Line Pressurizing Filter Housing When Torus Venting Initiated.Cover Reinstalled
05000220/LER-1980-024-03, /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	/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
05000220/LER-1980-024, Forwards LER 80-024/03L-0	Forwards LER 80-024/03L-0
05000220/LER-1980-025, Forwards LER 80-025/03L-0	Forwards LER 80-025/03L-0
05000220/LER-1980-025-03, /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	/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
05000220/LER-1980-026-01, /01T-0:on 801118,input Error Discovered Which Resulted in Reduction in Calculated Pressure Margin to Reactor Safety Valve Setpoints During Possible Transients	/01T-0:on 801118,input Error Discovered Which Resulted in Reduction in Calculated Pressure Margin to Reactor Safety Valve Setpoints During Possible Transients
05000220/LER-1980-026, Forwards LER 80-026/01T-0	Forwards LER 80-026/01T-0
05000220/LER-1980-027, Forwards LER 80-027/03L-0	Forwards LER 80-027/03L-0
05000220/LER-1980-027-03, /03L-0:on 801126,operability Tests Were Not Immediately Performed as Required.Caused by Misunderstanding of Intent of Procedure.Testing Performed	/03L-0:on 801126,operability Tests Were Not Immediately Performed as Required.Caused by Misunderstanding of Intent of Procedure.Testing Performed
05000220/LER-1980-028, Forwards LER 80-028/04T-0	Forwards LER 80-028/04T-0
05000220/LER-1980-028-04, /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	/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
05000220/LER-1980-030, Forwards LER 80-030/04T-0	Forwards LER 80-030/04T-0
05000220/LER-1980-030-04, /04T-0:on 801204,discovered That Lower Limit of Detection for Radiological Fish Analysis Was Not within Ets. Caused by Conversion Factor.Tech Spec Changes Proposed to Update Parameter	/04T-0:on 801204,discovered That Lower Limit of Detection for Radiological Fish Analysis Was Not within Ets. Caused by Conversion Factor.Tech Spec Changes Proposed to Update Parameter
05000220/LER-1980-031-01, /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	/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
05000220/LER-1980-031, Forwards LER 80-031/01T-0	Forwards LER 80-031/01T-0
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05000220/LER-1980-027, Forwards LER 80-027/03L-0

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