/03L-0:on 810122,supply Thermal Overloads Tripped During Testing of Valve CC400B (Component Cooling Water Inlet to Residual Heat Exchanger 1B).Caused by Wiring Error. Wiring Fault Identified & Corrected| ML111661482 |
| Person / Time |
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| Site: |
Kewaunee  |
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| Issue date: |
02/20/1981 |
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| From: |
Smoker C Wisconsin Public Service Corp |
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| To: |
NRC/OI/RGN-III/FO |
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| Shared Package |
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| ML111661483 |
List: |
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| References |
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| LER-81-003-03L, LER-81-3-3L, NUDOCS 8102250560 |
| Download: ML111661482 (3) |
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LER-1981-003, /03L-0:on 810122,supply Thermal Overloads Tripped During Testing of Valve CC400B (Component Cooling Water Inlet to Residual Heat Exchanger 1B).Caused by Wiring Error. Wiring Fault Identified & Corrected |
| Event date: |
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| Report date: |
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| 3051981003R03 - NRC Website |
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text
REGULATORY INFORMATION DISTRIBUTION SOTEM (RIDS)
ACCESSION NBR:8102250560 DOCDATE: 81/02/20 NOTARIZED: NO FACIL:50-305 Kewaunee Nuclear Power Plant, Wisconsin Public Servic AUTHNAME AUTHOR AFFILIATION SMOKERC.S.
Wisconsin Public Service Corp.
RECIP.NAME RECIPIENT AFFILIATION Region 3, Chicago, Officetof the D4rector
- - SUBJECT:
DOCKET #
05000305 LER 81-003/03L*0:on 810122,supply thermal overloads tripped during testing of valve CC400B (component cooling.water inlet to residual heat exchanger 1B).Caused by wiring error, Wiring fault identified & corrected, DISTRIBUTION CODE: A0028 COPIES RECEIVED:LTR LENCL 4.,
SIZEUZ"L/t..
TITLE:-Incident Reports NOTES:I&E:3 copies all material.
05000305 RECIPIENT ID CODE/NAME!
ACTION:
- VARGAS, 04 INTERNAL: A/D COMP&STRU06 A/D MATL & GUO A/D PLANT SYSIO A/D SFTY ASSE12 AEOD AUX SYS BR 15 CONT SYS BR 17, DIRDIV OF LIC DIRHUM FAC S21:
EFF TR SYS BR23 GEOSCIENCES 26, I&Ei 05 LIC GUID BR
- 30.
MECH ENG BR 33 NRC PDR!
02 OR ASSESS.BR 35 6R39 RE
- 01.
Y PROG EVA42 SYS INTERAC 845-COPIES LTTR ENCL 3
3 I
1 1
1 3
1 I
1 1
1 1
2 1
1 1
1 I
1 1
1 RECIPIENT ID CODE/NAME A/D ENV TECH 07 A/D OP REACT009 A/D RAD PROT 11 ACC EVAL BR 14 ASLBP/J.*HARD CHEM ENG BR 16 CORE PERF BR 18 DIRsENGINEERI20 DIRSYS INTEG22 EQUIP QUAL BR25' I&C SYS BR 29 JORDAN,E,/IE MATL ENG BR 32" MPA OP EX EVAL BR34 POWER SYS BR 36 REACT SYS BR 40 REL & RISK A 41 STRUCT ENG BR44 COPIES LTTR ENCL 1
1 1
1 1
1 1
1 1
1 I
1 1
3 3
1 1
1 1
EXTERNAL: ACRS NSIC 46 05 16 1
16 1
LPDR 03 1
TERA:DOUG MAY 1
?82 ygg TOTAL NUMBER OF COPIES REQUIRED: LTTR 1
1 i4
- I ENCL
NRC-81-27 WISCONSIN PUBLIC SERVICE CORPORATION P.O. Box 1200, Green Bay, Wisconsin 54305 February 20, 1981 Mr. J. G. Keppler, Regional Director Office of Inspection & Enforcement Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137
Dear Mr. Keppler:
Docket 50-305 Operating License DPR-43 Reportable Occurrence LER 81-003/03L-0 In accordance with the requirements of Technical Specifications, Section 6.9, the attached Licensee Event Report for reportable occurrence LER 81-003/03L-0 is being submitted.
Very truly yours, E. R. I thews, Vice President Power Supply & Engineering snf Attach.
cc - Dir, Office of Inspection & Enforcement A 0 US NRC, Washington, DC 20555 Dir, Office of Mgt Info & Program Control US NRC, Washington, DC 20555 Mr. W. Lavallee, NSAC PO Box 10412, Palo Alto, CA 94303 Mr. Robert Nelson, NRC Resident Inspector RR #1, Box 999, Kewaunee, WI 54216 i.EB 2 4. 1984
- - 111 o
I
- - T 130 LON'TJ O
1 8 7
8 7 2 9
SYSTEM
CAUSE
CAUSE COMP.
VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE IW B IL.IA L@ Iv IA IL IV 10 IP I L e IZ 9
10 11 12 13 s
19 20 SEOUENTIAL OCCURRENCE REPORT REVISION LER[RO EVENT YEAR REPORT NO.
CODE TYPE NO.
1~
REOR 111 1-1 1 010131 10 13 j L
LI L-1 L
NUMBER 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD 4
.PRIME CaMP.
COMPONENT TAKEN ACTION ONFPLANT METHOD HOURS 22 SUBMITTED FORM UB.
SUPPLIER MANUFACTURER xi@L2 1I0 L
0 I I IN J@ 1 NJ i
IL 2 10 0 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONSQ(
I Themotor operator failure has been attributed to a wiring error by a plant electri cian, which resulted in the thermal overloads tripping. The wiring fault was iden tified and corrected, and the valve/operator tested satisfactory. The procedure was reviewed with the electrician. No further corrective action is necessary.
7 89 FACILITY STATUS
% POWER OTHER STATUS &
[if] LEi 1101 01@ 1 NA 7
8 9
10 12 13 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY ElT 1z 7 J 1
1_Z NA 7
8 9
10 1144 PERSONNEL EXPOSURES NUMBER TYPE
DESCRIPTION
[El 10o0o 0j37-1z II NA S
8t9 11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTIONS 1] 01010 IgBI NA 7
8 9
11 12 LOSS OF OR DAMAGETO FACILITY TYPE
DESCRIPTION
[LE] Izi! NA 7t 8
9 10 PUBLICITY ISSUED DESCRIPTION@
[7 8L 1
0 NA 7
8 9
10 C, S. Smoker F A C
METHOD OF DISCOVERY DISCOVERY DESCRIPTION IB IO Operability Test 45 NA LOCATION OF RELEASE 4 NA 45 8
80 0
- - I
.0 SD SD 80 NRC USE ONLY 68 69 so 414/388-2560 0
LICENSEE EVENT REPORT cONTROL BLOCK:
(PLEASE PRINT OR TYPE REQUIRED INFORMATION) 1 6
Wil INP 1 0 010-1010101010 10- [00 14 1111IU 0 LI 9
LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 SOURCE LjI0 15 10 10 j0 13 10 15 (1 0 1 12 12 1 81 11 0 12 12 1 O 8j1J@
60 61 DOCKE rNUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES During testing of valve CC400B (Component cooling water inlet to lB residual heat exchanger) following the reinstallation of the motor operator, the supply thermal overloads tripped.
This put the facility under LCO T.S. 3.3.a.2.C (one RHR heat ex changer may be out of service for up to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />) and thus is reportable per T.S.
6.9.2.b.2.
Since this valve was manually operable, and the second RHR heat exchanger was available, there was no effect on public safety or plant operation.
so U-16l F1 13 IL 1
I i
1, Bo I
sU PHOME:
rNAMc Or oncEP
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| 05000305/LER-1981-003-03, /03L-0:on 810122,supply Thermal Overloads Tripped During Testing of Valve CC400B (Component Cooling Water Inlet to Residual Heat Exchanger 1B).Caused by Wiring Error. Wiring Fault Identified & Corrected | /03L-0:on 810122,supply Thermal Overloads Tripped During Testing of Valve CC400B (Component Cooling Water Inlet to Residual Heat Exchanger 1B).Caused by Wiring Error. Wiring Fault Identified & Corrected | | | 05000305/LER-1981-003, Forwards LER 81-003/03L-0 | Forwards LER 81-003/03L-0 | | | 05000305/LER-1981-005-03, Apparent Discrepancy Between Tech Specs & Test Procedure Reported as Inadequacy in Implementation of Controls.Review Indicated That Test Sequence Conforms W/Tech Spec.Tech Spec Revised for Clarity | Apparent Discrepancy Between Tech Specs & Test Procedure Reported as Inadequacy in Implementation of Controls.Review Indicated That Test Sequence Conforms W/Tech Spec.Tech Spec Revised for Clarity | | | 05000305/LER-1981-006, Forwards LER 81-006/03L-0 | Forwards LER 81-006/03L-0 | | | 05000305/LER-1981-010-01, /01T-0:on 810330,nonradioactive Liquid Found Discharged from Waste Neutralizing Tank to Svc Water Pretreatment Lagoon.Caused by Error in Calculation of Allowable Discharge Rates.Proposed Tech Spec Submitted | /01T-0:on 810330,nonradioactive Liquid Found Discharged from Waste Neutralizing Tank to Svc Water Pretreatment Lagoon.Caused by Error in Calculation of Allowable Discharge Rates.Proposed Tech Spec Submitted | | | 05000305/LER-1981-010, Forwards LER 81-010/01T-0 | Forwards LER 81-010/01T-0 | | | 05000305/LER-1981-013-03, /03L-0:on 810422,during Facility Shutdown for Leak Rate Test,Investigation Revealed Cracked Root Weld on Vent Valve of Containment Sump B to RHR Pump 1B Piping.Caused by Sharp Blow of Unknown Origin.Repair Scheduled | /03L-0:on 810422,during Facility Shutdown for Leak Rate Test,Investigation Revealed Cracked Root Weld on Vent Valve of Containment Sump B to RHR Pump 1B Piping.Caused by Sharp Blow of Unknown Origin.Repair Scheduled | | | 05000305/LER-1981-013, Forwards LER 81-013/03L-0 | Forwards LER 81-013/03L-0 | | | 05000305/LER-1981-014-03, /03X-1:on 810507,during Test of Presurizer Level Channels,Found Transmitter to Channel Lt 427 Out of Spec Low,Implying That High Level Reactor Trip Relay Would Have Tripped.Will Change Transmitters | /03X-1:on 810507,during Test of Presurizer Level Channels,Found Transmitter to Channel Lt 427 Out of Spec Low,Implying That High Level Reactor Trip Relay Would Have Tripped.Will Change Transmitters | | | 05000305/LER-1981-015, Forwards LER 81-015/03L-0 | Forwards LER 81-015/03L-0 | | | 05000305/LER-1981-015-03, /03L-0:on 810510,steam Flow Transmitter Found Out of Calibr Resulting in Bi Steam Flow & hi-hi Steam Flow Trip Settings Less Conservative than Tech Spec.Caused by Instrument Drift.Transmitter Recalibr | /03L-0:on 810510,steam Flow Transmitter Found Out of Calibr Resulting in Bi Steam Flow & hi-hi Steam Flow Trip Settings Less Conservative than Tech Spec.Caused by Instrument Drift.Transmitter Recalibr | | | 05000305/LER-1981-016-03, /03L-0:on 810515,tests Indicated That Two Foxboro RCS Flow Transmitters in Loop a Were Out of Calibr.Caused by Setpoint Drift.Transmitters Recalibr | /03L-0:on 810515,tests Indicated That Two Foxboro RCS Flow Transmitters in Loop a Were Out of Calibr.Caused by Setpoint Drift.Transmitters Recalibr | | | 05000305/LER-1981-017-03, /03L-0:on 810515,discovered That High Pressure Reactor Trip Setpoints for Pressure Transmitters Were Higher than Tech Spec.Caused by Setpoint Drift.Instruments Recalibr | /03L-0:on 810515,discovered That High Pressure Reactor Trip Setpoints for Pressure Transmitters Were Higher than Tech Spec.Caused by Setpoint Drift.Instruments Recalibr | | | 05000305/LER-1981-018-03, /03L-0:on 810516,testing Indicated That Low Pressure Safety Injection & Reactor Trip Were Below Tech Spec Limits for Pressure Transmitters.Caused by Instrument Drift.Sensing Lines Flushed.Amplifier Replaced | /03L-0:on 810516,testing Indicated That Low Pressure Safety Injection & Reactor Trip Were Below Tech Spec Limits for Pressure Transmitters.Caused by Instrument Drift.Sensing Lines Flushed.Amplifier Replaced | | | 05000305/LER-1981-019, Forwards LER 81-019/03L-0 | Forwards LER 81-019/03L-0 | | | 05000305/LER-1981-019-03, /03L-0:on 810605,during Refueling Outage,Portable Radiation Survey Instrument Checks for May Not Performed Per Tech Specs.Caused by Oversight Due to Reassignment of Personnel.Instruments Will Be Source Checked in June | /03L-0:on 810605,during Refueling Outage,Portable Radiation Survey Instrument Checks for May Not Performed Per Tech Specs.Caused by Oversight Due to Reassignment of Personnel.Instruments Will Be Source Checked in June | | | 05000305/LER-1981-020, Forwards LER 81-020/03L-0 | Forwards LER 81-020/03L-0 | | | 05000305/LER-1981-020-03, /03L-0:on 810606,condensate Water Storage Tank Level Went Below Tech Spec Limit.Caused by Normal Tank Water Usage During Startup & Turbine Testing Coincident W/ Demineralizer Regeneration | /03L-0:on 810606,condensate Water Storage Tank Level Went Below Tech Spec Limit.Caused by Normal Tank Water Usage During Startup & Turbine Testing Coincident W/ Demineralizer Regeneration | | | 05000305/LER-1981-021, Forwards LER 81-021/03L-0 | Forwards LER 81-021/03L-0 | | | 05000305/LER-1981-021-03, /03L-0:on 810611,found Visual Verification of Valve Motion & Limit Switch Not Performed During Refueling Outage for Valves Inaccessible During Normal Operation Per Iwv 3300 of 1974 ASME Code.Caused by Procedural Oversight | /03L-0:on 810611,found Visual Verification of Valve Motion & Limit Switch Not Performed During Refueling Outage for Valves Inaccessible During Normal Operation Per Iwv 3300 of 1974 ASME Code.Caused by Procedural Oversight | | | 05000305/LER-1981-022, Forwards LER 81-022/03L-0 | Forwards LER 81-022/03L-0 | | | 05000305/LER-1981-022-03, /03L-0:on 810619,spent Fuel Pool Boron Sampling Not Performed within Allotted Time Frame During Steady State Operation.Caused by Temporary Work Load Increase on Chemistry Staff.Sample Taken & Analyzed | /03L-0:on 810619,spent Fuel Pool Boron Sampling Not Performed within Allotted Time Frame During Steady State Operation.Caused by Temporary Work Load Increase on Chemistry Staff.Sample Taken & Analyzed | | | 05000305/LER-1981-023-03, /03L-0:on 810621,boric Acid Found Leaking from Instrument Isolation Valve CVC-11188.Caused by Leaking Diaphragm & Corroded Bonnet.Transfer Pump 1A Isolated & Bonnet Assembly Replaced | /03L-0:on 810621,boric Acid Found Leaking from Instrument Isolation Valve CVC-11188.Caused by Leaking Diaphragm & Corroded Bonnet.Transfer Pump 1A Isolated & Bonnet Assembly Replaced | | | 05000305/LER-1981-023, Forwards LER 81-023/03L-0 | Forwards LER 81-023/03L-0 | | | 05000305/LER-1981-024-03, /03L-0:on 810730,low Boric Acid Heat Tracing Temp Detected on Section of Piping Between Boric Acid Tanks & Safety Injection Pumps.Caused by Removal of Insulation from Boric Acid Heat Tracing Circuits to Permit Maint | /03L-0:on 810730,low Boric Acid Heat Tracing Temp Detected on Section of Piping Between Boric Acid Tanks & Safety Injection Pumps.Caused by Removal of Insulation from Boric Acid Heat Tracing Circuits to Permit Maint | | | 05000305/LER-1981-024, Forwards LER 81-024/03L-0 | Forwards LER 81-024/03L-0 | | | 05000305/LER-1981-025-03, /03L-0:on 810807,safety Injection High Containment Pressure Setpoint Discovered to Be Less Conservative than Required by Tech Spec Due to Foxboro Containment Pressure Transmitter Out of Calibr.Caused by Instrument Drift | /03L-0:on 810807,safety Injection High Containment Pressure Setpoint Discovered to Be Less Conservative than Required by Tech Spec Due to Foxboro Containment Pressure Transmitter Out of Calibr.Caused by Instrument Drift | | | 05000305/LER-1981-025, Forwards LER 81-025/03L-0 | Forwards LER 81-025/03L-0 | | | 05000305/LER-1981-026, Forwards LER 81-026/03L-0 | Forwards LER 81-026/03L-0 | | | 05000305/LER-1981-026-03, /03L-0:on 810817,auxiliary Feedwater Pump Inservice Testing Not Performed within 7 Days After Reaching Primary Temp Limit.Caused by Misinterpretation of ASME Code.Pumps Tested & Procedures Revised | /03L-0:on 810817,auxiliary Feedwater Pump Inservice Testing Not Performed within 7 Days After Reaching Primary Temp Limit.Caused by Misinterpretation of ASME Code.Pumps Tested & Procedures Revised | | | 05000305/LER-1981-027-03, /03L-0:on 810820,during Routine Plant Tour, Excess Shaft Leakage Noted on 1B Boric Acid Transfer Pump. Caused by Corroded Pipe Plug in Boric Acid Pump Housing.Plug Replaced W/Stainless Plug | /03L-0:on 810820,during Routine Plant Tour, Excess Shaft Leakage Noted on 1B Boric Acid Transfer Pump. Caused by Corroded Pipe Plug in Boric Acid Pump Housing.Plug Replaced W/Stainless Plug | | | 05000305/LER-1981-027, Forwards LER 81-027/03L-0 | Forwards LER 81-027/03L-0 | | | 05000305/LER-1981-028-03, /03L-0:on 810828,supply Breaker Overloads Tripped During Testing of Component Cooling Water Inlet Valve CC 400B.Caused by Worn Gears in Operator.Worn Gears Replaced | /03L-0:on 810828,supply Breaker Overloads Tripped During Testing of Component Cooling Water Inlet Valve CC 400B.Caused by Worn Gears in Operator.Worn Gears Replaced | | | 05000305/LER-1981-029-03, /03L-0:on 810828,check Damper SBV-3A Failed to Open Resulting in Inability of Sys to Perform to Design. Caused by Hydraulic Oil Leak Resulting from Pump Seals Wearing Out.Pump Replaced & Valve Tested Satisfactorily | /03L-0:on 810828,check Damper SBV-3A Failed to Open Resulting in Inability of Sys to Perform to Design. Caused by Hydraulic Oil Leak Resulting from Pump Seals Wearing Out.Pump Replaced & Valve Tested Satisfactorily | | | 05000305/LER-1981-030-03, /03L-0:on 810903,surveillance Procedure Found to Incorrectly Measure Shield Bldg Vent Sys Exhaust Flow from Annulus.Caused by Surveillance Procedures Written to Demonstrate Original Design Criteria | /03L-0:on 810903,surveillance Procedure Found to Incorrectly Measure Shield Bldg Vent Sys Exhaust Flow from Annulus.Caused by Surveillance Procedures Written to Demonstrate Original Design Criteria | | | 05000305/LER-1981-030, Forwards LER 81-030/03L-0 | Forwards LER 81-030/03L-0 | | | 05000305/LER-1981-031-03, /03L-0:on 811002,sampling & Analysis of Chemical & Vol Control Sys Boron Recycle Monitor Tank 1A Indicated Tritium Activity Exceeded Max Allowable Limits.Caused by Increased Tritium Content in RCS & Boric Acid Evaporator | /03L-0:on 811002,sampling & Analysis of Chemical & Vol Control Sys Boron Recycle Monitor Tank 1A Indicated Tritium Activity Exceeded Max Allowable Limits.Caused by Increased Tritium Content in RCS & Boric Acid Evaporator | | | 05000305/LER-1981-032-01, /01T-0:on 811013,high Solids Content of Liquid Waste Discharge from Waste Neutralizing Tank to Svc Water Pretreatment Lagoon Exceeded ETS Increase Limits.Caused by Personnel Error in Calculation of Allowable Discharge Rates | /01T-0:on 811013,high Solids Content of Liquid Waste Discharge from Waste Neutralizing Tank to Svc Water Pretreatment Lagoon Exceeded ETS Increase Limits.Caused by Personnel Error in Calculation of Allowable Discharge Rates | | | 05000305/LER-1981-032, Informs That Repts for LER 81-032/01T-0 & LER 81-033/01T-0 Were Incorrectly Submitted as LER 81-032/03L-0 & LER 81-033/03L-0 | Informs That Repts for LER 81-032/01T-0 & LER 81-033/01T-0 Were Incorrectly Submitted as LER 81-032/03L-0 & LER 81-033/03L-0 | | | 05000305/LER-1981-033-01, /01T-0:on 811016,diesel Generator 1B Removed from Svc While Component Cooling Water Exchanger 1A Out of Svc. Caused by Personnel Error.Personnel Advised of Importance of Maintaining Redundant Equipment | /01T-0:on 811016,diesel Generator 1B Removed from Svc While Component Cooling Water Exchanger 1A Out of Svc. Caused by Personnel Error.Personnel Advised of Importance of Maintaining Redundant Equipment | | | 05000305/LER-1981-034-03, /03L-0:on 811018,during Normal operations,1B Zone SV Fan Started Automatically.Caused by Solenoid Failure Due to Burned Out Coil in Safe Position Automatically Starting Fan & Opening Damper.Coil Replaced | /03L-0:on 811018,during Normal operations,1B Zone SV Fan Started Automatically.Caused by Solenoid Failure Due to Burned Out Coil in Safe Position Automatically Starting Fan & Opening Damper.Coil Replaced | | | 05000305/LER-1981-034, Forwards LER 81-034/03L-0 | Forwards LER 81-034/03L-0 | | | 05000305/LER-1981-035, Forwards LER 81-035/03L-0,LER 81-014/03X-1 & Corrected LER 81-015/03X-2 | Forwards LER 81-035/03L-0,LER 81-014/03X-1 & Corrected LER 81-015/03X-2 | | | 05000305/LER-1981-035-03, /03L-0:on 811030,during Sampling & Analysis of Chemical & Vol Control Sys,Noted Monitor Tank Indicated Total Tritium Activity Exceeded Tech Specs.No Cause Stated. Liquid Transferred to Reduce Setpoint | /03L-0:on 811030,during Sampling & Analysis of Chemical & Vol Control Sys,Noted Monitor Tank Indicated Total Tritium Activity Exceeded Tech Specs.No Cause Stated. Liquid Transferred to Reduce Setpoint | | | 05000305/LER-1981-036-03, Motor Drive Auxiliary Feedwater Lube Oil Pump Continued to Run When Pump 1A Stopped.Caused by Excessive Wear & Misalignment of Switch Linkage Mechanism.Worn Parts Replaced | Motor Drive Auxiliary Feedwater Lube Oil Pump Continued to Run When Pump 1A Stopped.Caused by Excessive Wear & Misalignment of Switch Linkage Mechanism.Worn Parts Replaced | | | 05000305/LER-1981-037-03, /03L-0:on 811109,intermittent Deviation in Steam Flow Indication Between Similar Channels Observed.Caused by Electronic Failure in Circuit Board in Transmitter. Transmitter Repaired & Returned to Svc | /03L-0:on 811109,intermittent Deviation in Steam Flow Indication Between Similar Channels Observed.Caused by Electronic Failure in Circuit Board in Transmitter. Transmitter Repaired & Returned to Svc | | | 05000305/LER-1981-037, Forwards LER 81-037/03L-0 | Forwards LER 81-037/03L-0 | | | 05000305/LER-1981-038-03, /03L-0:on 811113,during Surveillance Testing on Shield Bldg Vent Sys,Check Damper SBV-10A Failed Shut.Caused by Ruptured Diaphragm Which Separates Motor from Oil Reservoir.Motor Replaced | /03L-0:on 811113,during Surveillance Testing on Shield Bldg Vent Sys,Check Damper SBV-10A Failed Shut.Caused by Ruptured Diaphragm Which Separates Motor from Oil Reservoir.Motor Replaced | | | 05000305/LER-1981-038, Forwards LER 81-038/03L-0 | Forwards LER 81-038/03L-0 | | | 05000305/LER-1981-039-03, /03X-1:on 811218,leaking Weld on Discharge Side of 1C Charging Pump Relief valve,CVC-101C,discovered.Caused by Vibrations & Pulsations in Associated Piping.Pipe Section Replaced.Design Change in Progress | /03X-1:on 811218,leaking Weld on Discharge Side of 1C Charging Pump Relief valve,CVC-101C,discovered.Caused by Vibrations & Pulsations in Associated Piping.Pipe Section Replaced.Design Change in Progress | |
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