Forwards LER 82-021/03L-0
Person / Time
ML20053E842
Site:	Davis Besse
Issue date:	06/03/1982
From:	Murray T TOLEDO EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20053E843	List: 05000346/LER-1982-021, Forwards LER 82-021/03L-0 05000346/LER-1982-021-03, /03L-0:on 820505,source Range Audible Indicator Signal Lead Found Disconnected.Lead Disconnected During Test Earlier in Day & Reconnection Not Verified.Caused by Procedure Deficiency.Procedure Rewritten
References
K82-875, NUDOCS 8206100144
Download: ML20053E842 (1)
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LER-1982-021, Forwards LER 82-021/03L-0

Event date:
Report date:
3461982021R00 - NRC Website
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TOLEDO

%s EDISON June 3, 1982 Log No. K82-875 FILE: RR 2 (NP-33-82-26)

Docket No. 50-346 License No. NPF-3 Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

Reportable Occurrence 82-021 Davis-Besse Nuclear Power Station. Unit 1 Date of Occurrence: May 5, 1982 Enclosed are three copies of Licensee Event Report 82-021 with supplemental information sheet which are being submitted in accordance with Technical Specification 6.9 to provide 30 day written notification of the subject occurrence.

Yours truly, lb+y 0 h/W Terry D. Murray Station Superintendent Davis-Besse Nuclear Power Station TDM/lmr Enclosure cc:

Mr. Richard DeYoung Office of Inspection and Enforcement Encl: 30 copies Mr. Norman Haller, Director Office of Management and Program Analysis Encl:

3 copies Mr. Luis Reyes Resident Inspector Encl:

1 copy 7j$g Y

THE TOLEDO EDISON COMPANY EDISON PLAZA 300 MADISON AVENUE TOLEDO OHIO 43652

8206100144 820603

\\/

PDR ADOCK 05000346

S PDR

Licensee Event Report

Davis Besse

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		Reporting criterion
05000346/LER-1982-001-01, /01X-2:on 820113,borated Water Storage Tank Temp Higher than Initial Conditions Assumed.Caused by Lack of Administrative Restrictions on Storage Tank Temp.Procedure Mods Initiated & Insulation Added	/01X-2:on 820113,borated Water Storage Tank Temp Higher than Initial Conditions Assumed.Caused by Lack of Administrative Restrictions on Storage Tank Temp.Procedure Mods Initiated & Insulation Added
05000346/LER-1982-001, Forwards LER 82-001/01X-1	Forwards LER 82-001/01X-1
05000346/LER-1982-002, Forwards LER 82-002/03L-0	Forwards LER 82-002/03L-0
05000346/LER-1982-002-03, /03L-0:on 820103,radiation Detector RE2007 on Safety Features Actuation Sys Channel 4 Failed Low.Low Radiation Bistable Tripped & Alarmed.Caused by Fabrication Error in Attaching Shortened Cable Wire	/03L-0:on 820103,radiation Detector RE2007 on Safety Features Actuation Sys Channel 4 Failed Low.Low Radiation Bistable Tripped & Alarmed.Caused by Fabrication Error in Attaching Shortened Cable Wire
05000346/LER-1982-003, Forwards LER 82-003/03L-0	Forwards LER 82-003/03L-0
05000346/LER-1982-003-03, /03L-0:on 820208 & 10,door 400 Which Forms Part of Negative Pressure Boundary for Spent Fuel Pool Emergency Ventilation Sys Found Open.Caused by Faulty Door Closure Mechanism.Maint Order Issued for Corrective Action	/03L-0:on 820208 & 10,door 400 Which Forms Part of Negative Pressure Boundary for Spent Fuel Pool Emergency Ventilation Sys Found Open.Caused by Faulty Door Closure Mechanism.Maint Order Issued for Corrective Action
05000346/LER-1982-004, Forwards LER 82-004/03L-1	Forwards LER 82-004/03L-1
05000346/LER-1982-004-03, /03L-0:on 820122,door 108 to Detergent Waste Drain Tank & Pump Room Found Open.Caused by Worker Disregarding Sign on Door.New Signs Will Be Added to Elaborate Requirement to Close Door	/03L-0:on 820122,door 108 to Detergent Waste Drain Tank & Pump Room Found Open.Caused by Worker Disregarding Sign on Door.New Signs Will Be Added to Elaborate Requirement to Close Door
05000346/LER-1982-005-03, /03L-0:on 820126,RE 2007,containment Area Radiation Control Monitor to Safety Features Actuation Sys Channel 4 Failed Low.Exact Cause Unknown.New Detector Placed in Svc.Failed Detector Returned to Vendor	/03L-0:on 820126,RE 2007,containment Area Radiation Control Monitor to Safety Features Actuation Sys Channel 4 Failed Low.Exact Cause Unknown.New Detector Placed in Svc.Failed Detector Returned to Vendor
05000346/LER-1982-005, Forwards LER 82-005/03L-0	Forwards LER 82-005/03L-0
05000346/LER-1982-006-03, /03L-1:on 820126,determination of Reportability Made Re 820113 Event.During Attempt to Start Component Cooling Water Pump 1-1,breaker AC113 Would Not Close.Caused by Worn Rack in Mechanism.Mechanism Replaced	/03L-1:on 820126,determination of Reportability Made Re 820113 Event.During Attempt to Start Component Cooling Water Pump 1-1,breaker AC113 Would Not Close.Caused by Worn Rack in Mechanism.Mechanism Replaced
05000346/LER-1982-006, Forwards LER 82-006/03L-1	Forwards LER 82-006/03L-1
05000346/LER-1982-007-03, /03L-0:on 820201,spent Fuel Pool Water Level Dropped Below Tech Spec Limit.Caused by Deficiency in Sp 1104.42.Procedure mod,T-6087,added Requiring Siphon Breaker on Temporary Line Used to Move Water	/03L-0:on 820201,spent Fuel Pool Water Level Dropped Below Tech Spec Limit.Caused by Deficiency in Sp 1104.42.Procedure mod,T-6087,added Requiring Siphon Breaker on Temporary Line Used to Move Water
05000346/LER-1982-007, Forwards LER 82-007/03L-0	Forwards LER 82-007/03L-0
05000346/LER-1982-008-03, /03X-1:on 820208,mechanical Penetration Room Pressure Gauge PDI-5000 Failed,Rendering Emergency Ventilation Sys Train 1-1 Inoperable.Caused by Ice Buildup on Transmitter Vent Line.Ice Removed	/03X-1:on 820208,mechanical Penetration Room Pressure Gauge PDI-5000 Failed,Rendering Emergency Ventilation Sys Train 1-1 Inoperable.Caused by Ice Buildup on Transmitter Vent Line.Ice Removed
05000346/LER-1982-008, Forwards LER 82-008/03L-0	Forwards LER 82-008/03L-0
05000346/LER-1982-009-03, /03L-0:on 820209 & 0217,door 107 Was Found Blocked Open.Cause of First Incident Was Design Deficiency.Second Finding Caused by Personnel Error.Orientation & Requalification Classes & Contractor Classes Initiated	/03L-0:on 820209 & 0217,door 107 Was Found Blocked Open.Cause of First Incident Was Design Deficiency.Second Finding Caused by Personnel Error.Orientation & Requalification Classes & Contractor Classes Initiated
05000346/LER-1982-009, Forwards LER 82-009/03L-0	Forwards LER 82-009/03L-0
05000346/LER-1982-010-03, /03L-0:on 820218,during Periodic Test PT 5186.01, Valve Dh 10 Found Unlocked & Out of Position,Causing Loss of One Possible long-term Boron Dilution Flowpath.Caused by Operator Errors.Operators & Supervisors Counseled	/03L-0:on 820218,during Periodic Test PT 5186.01, Valve Dh 10 Found Unlocked & Out of Position,Causing Loss of One Possible long-term Boron Dilution Flowpath.Caused by Operator Errors.Operators & Supervisors Counseled
05000346/LER-1982-010, Forwards LER 82-010/03L-0	Forwards LER 82-010/03L-0
05000346/LER-1982-011-03, /03L-0:on 820225,while Performing Control Rod Exercising Test,Control Rod 5-2 Dropped to 0% Withdrawn. Caused by Blown Fuse in Transfer Switch Module Assembly B Phase.Blown Fuse Replaced	/03L-0:on 820225,while Performing Control Rod Exercising Test,Control Rod 5-2 Dropped to 0% Withdrawn. Caused by Blown Fuse in Transfer Switch Module Assembly B Phase.Blown Fuse Replaced
05000346/LER-1982-011, Forwards LER 82-011/03L-0	Forwards LER 82-011/03L-0
05000346/LER-1982-012-01, /01T-0:on 820314,during Final Stages of RCS Cooldown,Water Injected to Make Up for RCS Inventory Shrinkage Was Lower than Expected Boron Concentration.Caused by Personnel & Procedure Error.Procedure Modified	/01T-0:on 820314,during Final Stages of RCS Cooldown,Water Injected to Make Up for RCS Inventory Shrinkage Was Lower than Expected Boron Concentration.Caused by Personnel & Procedure Error.Procedure Modified
05000346/LER-1982-012, Forwards LER 82-012/01T-0	Forwards LER 82-012/01T-0
05000346/LER-1982-013-03, /03L-0:on 820302,radiation Element Re 2007 in Safety Features Actuation Sys Channel 4 Failed Low.Caused by Broken Wire in Cable Connector in Penetration Box P4LIGX. Connector Reterminated & Detector Replaced	/03L-0:on 820302,radiation Element Re 2007 in Safety Features Actuation Sys Channel 4 Failed Low.Caused by Broken Wire in Cable Connector in Penetration Box P4LIGX. Connector Reterminated & Detector Replaced
05000346/LER-1982-013, Forwards LER 82-013/03L-0	Forwards LER 82-013/03L-0
05000346/LER-1982-014-03, /03L-0:on 820311,fire Door 101A Blocked Open by Temporary Hose.Caused by Const Personnel Error During Flush of Level Instrumentation Column.Operator Posted at Door Until Hose Removed	/03L-0:on 820311,fire Door 101A Blocked Open by Temporary Hose.Caused by Const Personnel Error During Flush of Level Instrumentation Column.Operator Posted at Door Until Hose Removed
05000346/LER-1982-014, Forwards LER 82-014/03L-0	Forwards LER 82-014/03L-0
05000346/LER-1982-015-03, /03L-0:on 820312,shift Supervisor Failed to Instruct Operators to Start Control Room Ventilation in Recirculation Mode During Routine Maint on Chlorine Detector.Caused by Operator Error	/03L-0:on 820312,shift Supervisor Failed to Instruct Operators to Start Control Room Ventilation in Recirculation Mode During Routine Maint on Chlorine Detector.Caused by Operator Error
05000346/LER-1982-015, Forwards LER 82-015/03L-0	Forwards LER 82-015/03L-0
05000346/LER-1982-016, Forwards LER 82-016/03L-0	Forwards LER 82-016/03L-0
05000346/LER-1982-017-03, /03L-0:on 820323,valve CS20 Discovered Locked in Wrong Position.Caused by Personnel Error.Shift Operators Retrained on Safety Significance & Implications of Having Locked Valves in Abnormal Positions	/03L-0:on 820323,valve CS20 Discovered Locked in Wrong Position.Caused by Personnel Error.Shift Operators Retrained on Safety Significance & Implications of Having Locked Valves in Abnormal Positions
05000346/LER-1982-017, Forwards LER 82-017/03L-0	Forwards LER 82-017/03L-0
05000346/LER-1982-018-03, /03X-1:on 820326,source Range Detector NI-2 High Voltage Cable Cut by Const Electrician,Resulting in Loss of One Source Range Indicator.Caused by Problem in Coordinating Work.Cable Reconnected	/03X-1:on 820326,source Range Detector NI-2 High Voltage Cable Cut by Const Electrician,Resulting in Loss of One Source Range Indicator.Caused by Problem in Coordinating Work.Cable Reconnected
05000346/LER-1982-018, Forwards LER 82-018/03L-0	Forwards LER 82-018/03L-0
05000346/LER-1982-019-01, /01X-1:on 820419,during Steam Generator Eddy Current Insp,Some Generator Tubes Adjacent to Auxiliary Feedwater Header Showed Potential Interaction W/Header Support Sys.Caused by Collapse of Steam Bubble in Header	/01X-1:on 820419,during Steam Generator Eddy Current Insp,Some Generator Tubes Adjacent to Auxiliary Feedwater Header Showed Potential Interaction W/Header Support Sys.Caused by Collapse of Steam Bubble in Header
05000346/LER-1982-020, Forwards Revised LER 82-020/03X-1	Forwards Revised LER 82-020/03X-1
05000346/LER-1982-020-03, Loss of 120 Volt Alternating Current Distribution Panel Y2 Experienced While in Mode 6.Safety Feature Actuation Signal Channel 2 Actuated.Caused by Blown YV2 Inverter Fuse.Fuse Replaced	Loss of 120 Volt Alternating Current Distribution Panel Y2 Experienced While in Mode 6.Safety Feature Actuation Signal Channel 2 Actuated.Caused by Blown YV2 Inverter Fuse.Fuse Replaced
05000346/LER-1982-021-03, /03L-0:on 820505,source Range Audible Indicator Signal Lead Found Disconnected.Lead Disconnected During Test Earlier in Day & Reconnection Not Verified.Caused by Procedure Deficiency.Procedure Rewritten	/03L-0:on 820505,source Range Audible Indicator Signal Lead Found Disconnected.Lead Disconnected During Test Earlier in Day & Reconnection Not Verified.Caused by Procedure Deficiency.Procedure Rewritten
05000346/LER-1982-021, Forwards LER 82-021/03L-0	Forwards LER 82-021/03L-0
05000346/LER-1982-022-03, /03L-0:on 820512,fire Barrier Door 302,forming Part of Negative Pressure Boundary for Spent Fuel Pool Area, Found Propped Open.Caused by Personnel Error.Personnel Instructed Re Importance of Obeying Signs	/03L-0:on 820512,fire Barrier Door 302,forming Part of Negative Pressure Boundary for Spent Fuel Pool Area, Found Propped Open.Caused by Personnel Error.Personnel Instructed Re Importance of Obeying Signs
05000346/LER-1982-022, Forwards LER 82-022/03L-0	Forwards LER 82-022/03L-0
05000346/LER-1982-023, Forwards LER 82-023/01T-1	Forwards LER 82-023/01T-1
05000346/LER-1982-024-03, /03L-0:on 820522,discharge Valve Mu 348 from Boric Acid Pump 1-1 Found in Closed Position.Caused by Personnel Error.Operators Counseled & Maint for Check Valves Reviewed	/03L-0:on 820522,discharge Valve Mu 348 from Boric Acid Pump 1-1 Found in Closed Position.Caused by Personnel Error.Operators Counseled & Maint for Check Valves Reviewed
05000346/LER-1982-024, Forwards LER 82-024/03L-0.Detailed Event Analysis Encl	Forwards LER 82-024/03L-0.Detailed Event Analysis Encl
05000346/LER-1982-025, Forwards LER 82-025/03L-0	Forwards LER 82-025/03L-0
05000346/LER-1982-025-03, /03L-0:on 820527,test Interval for Boration Flowpath Heat Trace Test ST 5011.01 Exceeded.Caused by Personnel Error.Event Reviewed W/Responsible Individuals & Memo Issued to Operators	/03L-0:on 820527,test Interval for Boration Flowpath Heat Trace Test ST 5011.01 Exceeded.Caused by Personnel Error.Event Reviewed W/Responsible Individuals & Memo Issued to Operators
05000346/LER-1982-026-03, /03L-0:on 820530 & 0608,fire Door 504 Between Computer Room & Cabinet Room Found Blocked Open.Caused by Personnel Error.Personnel Instructed in Proper Procedure for Blocking fire/safety-related Doors	/03L-0:on 820530 & 0608,fire Door 504 Between Computer Room & Cabinet Room Found Blocked Open.Caused by Personnel Error.Personnel Instructed in Proper Procedure for Blocking fire/safety-related Doors
05000346/LER-1982-026, Forwards LER 82-026/03L-0	Forwards LER 82-026/03L-0
05000346/LER-1982-027-03, /03L-0:on 820608,combined Leakage for All Containment Penetration Valves Exceeded Tech Spec Limits. Caused by Component Failure W/Two Valves Failing Due to Misapplication of Seating Matl.Valves Repaired	/03L-0:on 820608,combined Leakage for All Containment Penetration Valves Exceeded Tech Spec Limits. Caused by Component Failure W/Two Valves Failing Due to Misapplication of Seating Matl.Valves Repaired
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05000346/LER-1982-021, Forwards LER 82-021/03L-0

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Dear Mr. Keppler:

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