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LER-1981-008, /03L-0:on 810407,during Fire Protection Spray Sys Surveillance Test,Eight Spray Nozzles for Engineered Safety Features Vent Charcoal Filter 2-HV-AES-1 & 14 Nozzles for 2-HV-AES-2 Were Found Partially Plugged.Sys Flushed |
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| 3161981008R03 - NRC Website |
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REGULATOR INFORMATION DISTRIBUTION TEM (RIDS)
ACCESSION NBR: 81 05040458 DOC ~ DATE: 81/04/27 NOTARIZED:
= NO FACIL:50 316 Donald C ~
Cook Nuclear Power Pl ant p Uni t 2'R Indi ana AUTH ~ NAME AUTHOR AFFILIATION WIZNERi D ~ GB Indiana 8
Michi gan Electric Co, RECIP ~ NAME~
RECIPIENT AFFILIATION Region 3e Chicago<
Offi ce of the Director SIZEB NOTES: Send 3 copies of a
1 l material to ILE ~
SUBJECT!" LER 81-008/03Lr 0:on 810407,dur ing fire pr otection spr ay sys sur vei 1
1 ance'est i eight spray nozzl es for engineered safety features vent charcoal filter Z-HV-AES-1 8
1 4 nozz1 es. for 2 "HV-AES"2 wer e found partial l y pl ugged,Sys flushed.
DISTRIBUTION CODE::
A002S COPIES RECEI VED: LTR ENCL TITLE: Incident Reports DOCKET 05000316 05000316 REC I P I ENT ID CODE/NAMEI ACTION!
VARGAR8 ~
04 INTERNAL: A/D COMP8,STRU06'/D MATL 8,
QU08 A/D PLANT SYS1 0.
A/D SFTY ASSE1 2 AEOD ASLBP/J ~ HARD CHEM ENG BR 1 6 CORE PER F BR 1 8 DIR E HUM FAC S21 EFF TR SYS BR23 GEOSC IENCES 26 ISE 05 LIC GUID BR 30 MECH ENG BR 33 OR ASSESS BR 35 S
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1 RECIPIENT ID CODE/NAME A/D ENV TECH 07 A/D OP REACT009 A/D RAD PROT 1 1 ACC EVAL BR 14 AEOD/DMU AUX SYS BR 1 5 CONT SYS BR 1 7 DIRg ENGINEERI20 DIR p SYS INTEG22 EQUIP QUAL BR25 IE C SYS BR 29 JORDAN g E ~/ IE MATL ENG BR 32
'RC PDR a 02 POWER SYS BR 36 REACT SYS BR 40 REL 8
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EXTERNAL: ACRS NSIC 46 05 16 16 1
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~'o arloen laatrla IIVDIANA& MICHIGAIVEIECTRIC COMPANY DONALDC. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 (616) 465-5901 April'7, 1981 Mr. J.G. Keppler, Regional Director Office of Inspection and Enforcement United States Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137
Dear Mr. Keppler:
WB (pe'.
50-316 Pursuant to the requirements of the Appendix A Technical Specifications, the following report/s are submitted:
RO 81-008/03L-O.
Sincerely, D.V. Shaller Plant Manager
/bab cc:
J.E.
Dolan R.S. Hunter R.W. Jurgensen R.F. Kroeger R.W. Kilburn E.
Swanson/N.
DuBry RO:III R.C. Callen MPSC G. Charnoff, Esq.
J.M. Hennigan W. Lavallee EPRI
- PNSRC, J.F. Stietzel E.L. Townley Dir., IE (30 copies)
Dir., MIPC (3 copies)
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NRC FORM 366 (7 77)
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CON'T CONTROL BLOCK:
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C C 2Q20 LICENSEE CODE 14 15 U. S. NUCLEAR REGULATORYCOMMISSION LICENSEE EVENT REPORT 01
{PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 6 0
0 0
0 0
0 0
0 Qs 4
1 1
1 Qs~Qs 25 26 LICENSE TYPE 30 57 CAT 58 LICENSE NUMBER
.7 8
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5 0
0 0
3 1
6 Q70 4
0 7
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2 7
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Qe 60 61 DOCKET NUMBER
~
68 69 EVENT DATE I4 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES 010 DURING SURVEILLANCE TEST OF FIRE PROTECTION SPRAY SYSTEMS 8
OF T
~O3 FOR ESF VENT CHARCOAL FILTER, 2-HV-AES-1 AND 14 OF THE 72 NOZZLES FOR 2-HV-AES-2 WERE FOUND PARTIALLY PLUGGED CONTRARY TO THE RE UIREMENTS OF T.S. 3.
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~O7 NOT REQUIRED AT, THE TIME OF THIS EVENT, THE BLOCKAGE PROBABLY EXISTED DURING PER D
WHEN VENT.
UNIT OPERABILITY WAS RE UIRED.
PUBLIC HEALTH AND SAF THE NOZZLES WHICH WERE CLEAR PROBABLY WOULD HAVE PROVIDED AMPLE PROTECTIO EVENT OF FIRE.
~08 80 7
8 9
SYSTEM
CAUSE
CAUSE COMP.
VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE
~AB Q7 B
Q72
~C Q13 X
X X
X X
X Q74
~Z Q75
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10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LF RIRP EVENT YEAR REPORT NO.
CODE TYPE NO.
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HOURS Q22 SUBMITTED FORM SUB.
SUPPLIER MANUFACTURER
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3 Qss 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 027 o
THE MATERIAL WHICH WAS FOUND IN THE NOZZLES APPEARED D
OF RUST AND BITS OF PAPER WHICH APPARENTLY HAD NOT BE F
THE SPRAY NOZZLES WERE ALL REMOVED AND CLEANED.
THE SYSTEM WAS FLUSHED WI 4
44 7
8 9
9 11 12 LOSS OF OR DAMAGETO FACILITY 43 TYPE
DESCRIPTION
Z Q42 NA 7
8 O
9 10 PUBLICITY ISSUED DESCRIPTION~
~NQ NA 8
9 10 DAVID G.
WIZNER NAME OF PREPARER 7
8 9
FACILITY
~3P METHOD OF STATUS TsPOWER OTHER STATUS Q DISCOVERY
~HQss ~00 0
Qss NA
~B031 7
8 9
10 12 13 44 45 46 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ 6
Z 033 Z Q34 NA NA 7
8 9
10 11 45 PERSONNEL EXPOSURES NUMBER TYPE
DESCRIPTION
~77
~00 0
Q37 ~2 Qss NA 7
8 9
11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTIONQ1 [iisj ~00 0
Qso NA DISCOVERY DESCRIPTION 32 18 MONTH SURVEILLANCE TEST LOCATIONOF RELEASE Q NRC USF. ONLY 68 69 616-465 5g01 80 80 80 80 80 80 80 ~ o 0L0
0 l
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| 05000315/LER-1981-001, Forwards LER 81-001/03L-0 | Forwards LER 81-001/03L-0 | | | 05000316/LER-1981-001-03, /03L-0:on 810103,annunciator Indicated Loss of Control Voltage to West RHR Pump,Making Train of RHR Inoperable.Caused by Loose Fuse Clip on Main Control Fuses. Clip Adjusted & Breaker Cycled.Pump Placed on mini-flow | /03L-0:on 810103,annunciator Indicated Loss of Control Voltage to West RHR Pump,Making Train of RHR Inoperable.Caused by Loose Fuse Clip on Main Control Fuses. Clip Adjusted & Breaker Cycled.Pump Placed on mini-flow | | | 05000315/LER-1981-001-03, /03L-0:on 810112,boron Concentration in Boron Injection Tank & North Boric Acid Storage Tank Found Diluted Below Tech Spec Level.Cause Unknown.Boron Concentration Increased | /03L-0:on 810112,boron Concentration in Boron Injection Tank & North Boric Acid Storage Tank Found Diluted Below Tech Spec Level.Cause Unknown.Boron Concentration Increased | | | 05000316/LER-1981-001, Forwards LER 81-001/03L-0 | Forwards LER 81-001/03L-0 | | | 05000316/LER-1981-001-04, No Apparent Flow Observed Through Radiation Monitor R-19 from Steam Generator 21. Caused by Bad Diaphragm in roto-meter Flow Regulator.Flow Meters to Radiation Monitor to Be Modified | No Apparent Flow Observed Through Radiation Monitor R-19 from Steam Generator 21. Caused by Bad Diaphragm in roto-meter Flow Regulator.Flow Meters to Radiation Monitor to Be Modified | | | 05000315/LER-1981-001-04, /04L-0:on 810313 & 0224,unplanned & Unsampled Radioactive Gases Found Released.Caused by Excessive Leakage from Reciprocating Charging Pump Stuffing Box & Leaking Isolated Gas Decay Tank Valves | /04L-0:on 810313 & 0224,unplanned & Unsampled Radioactive Gases Found Released.Caused by Excessive Leakage from Reciprocating Charging Pump Stuffing Box & Leaking Isolated Gas Decay Tank Valves | | | 05000315/LER-1981-002, Forwards Updated LER 81-002/03X-1 & LERs 82-031/03L-0, 82-032/03L-0 & 82-033/03L-0 | Forwards Updated LER 81-002/03X-1 & LERs 82-031/03L-0, 82-032/03L-0 & 82-033/03L-0 | | | 05000316/LER-1981-002-03, /03L-0:on 810103,east Motor Auxiliary Feed Pump Inoperable.Caused by Repair of Emergency Leakoff Line Check Valve FW-153.Check Valve Disc Replaced,Seat Lapped & Spool Piece Installed in Place of Strainer | /03L-0:on 810103,east Motor Auxiliary Feed Pump Inoperable.Caused by Repair of Emergency Leakoff Line Check Valve FW-153.Check Valve Disc Replaced,Seat Lapped & Spool Piece Installed in Place of Strainer | | | 05000316/LER-1981-002, Forwards LER 81-002/03L-0 | Forwards LER 81-002/03L-0 | | | 05000316/LER-1981-003, Forwards LER 81-003/03L-0 | Forwards LER 81-003/03L-0 | | | 05000315/LER-1981-003, Forwards LER 81-003/03L-0 | Forwards LER 81-003/03L-0 | | | 05000315/LER-1981-003-03, /03L-0:on 810212,during Normal Operations,Control Room Cable Vault Left Unattended W/No Fire Watch Posted While Access Door Was Sealed for Testing.Caused by Misunderstanding of Tech Spec 3.7.10.Personnel Reinstructed | /03L-0:on 810212,during Normal Operations,Control Room Cable Vault Left Unattended W/No Fire Watch Posted While Access Door Was Sealed for Testing.Caused by Misunderstanding of Tech Spec 3.7.10.Personnel Reinstructed | | | 05000316/LER-1981-003-03, /03L-0:on 810217 & 0301,ESW Pump 2-E Found Inoperable.Caused by Closed Inlet & Outlet Slide Gate Valves to Strainers on Discharge of ESW Pumps Due to Defective Agastat Timer.Timer Replaced & Backwash Sys Cycled | /03L-0:on 810217 & 0301,ESW Pump 2-E Found Inoperable.Caused by Closed Inlet & Outlet Slide Gate Valves to Strainers on Discharge of ESW Pumps Due to Defective Agastat Timer.Timer Replaced & Backwash Sys Cycled | | | 05000316/LER-1981-004, Forwards LER 81-004/03L-0 | Forwards LER 81-004/03L-0 | | | 05000316/LER-1981-004-03, /03L-0:on 810308,ISI Data Review for Ba Transfer Pump 3 Was Not Reviewed within 96-h Time Limit.Caused by Test Data Being Inadvertently Overlooked by Technical Inservice Insp Coordinator.Card File Developed | /03L-0:on 810308,ISI Data Review for Ba Transfer Pump 3 Was Not Reviewed within 96-h Time Limit.Caused by Test Data Being Inadvertently Overlooked by Technical Inservice Insp Coordinator.Card File Developed | | | 05000315/LER-1981-004-03, /03L-0:on 810328,east Motor Driven Auxiliary Feed Pump Found Removed from Svc Twice for Repairs to ESW 4-inch Centerline Supply valve,WMO-754.Caused by Valve Stem Seized in Body & Twisted.Centerline Valve Replaced W/Pratt Va | /03L-0:on 810328,east Motor Driven Auxiliary Feed Pump Found Removed from Svc Twice for Repairs to ESW 4-inch Centerline Supply valve,WMO-754.Caused by Valve Stem Seized in Body & Twisted.Centerline Valve Replaced W/Pratt Valve | | | 05000316/LER-1981-005-01, /01T-0:on 810331,spray Additive Tank Level Found Below Tech Spec Limit During Removal of Magnetrol for 18 Month Surveillance.Caused by Absence of Alarm Due to Contacts Wired Backwards.Tank Refilled | /01T-0:on 810331,spray Additive Tank Level Found Below Tech Spec Limit During Removal of Magnetrol for 18 Month Surveillance.Caused by Absence of Alarm Due to Contacts Wired Backwards.Tank Refilled | | | 05000315/LER-1981-005, Forwards LER 81-005/03L-0 | Forwards LER 81-005/03L-0 | | | 05000315/LER-1981-005-03, /03L-0:on 810314,breakers for Five Specified Motor Operator Valves Mistakenly Opened in Unit 1 Instead of Unit 2.Caused by Personnel Error.Operator Disciplined & Warning Ltr Issued to Operating Shifts | /03L-0:on 810314,breakers for Five Specified Motor Operator Valves Mistakenly Opened in Unit 1 Instead of Unit 2.Caused by Personnel Error.Operator Disciplined & Warning Ltr Issued to Operating Shifts | | | 05000316/LER-1981-005, Describes 810331 Incident Reported in LER 81-005/01T-0 Re Spray Additive Tank Level | Describes 810331 Incident Reported in LER 81-005/01T-0 Re Spray Additive Tank Level | | | 05000316/LER-1981-006-03, /03L-0:on 810316,during Automatic Load Sequence Surveillance Test,Safety Injection Sys Relay Timers Exceeded Tolerance Allowed by Tech Specs.Caused by Instrument Drift. Component Cooling Water Pump 2E Timer Replaced | /03L-0:on 810316,during Automatic Load Sequence Surveillance Test,Safety Injection Sys Relay Timers Exceeded Tolerance Allowed by Tech Specs.Caused by Instrument Drift. Component Cooling Water Pump 2E Timer Replaced | | | 05000315/LER-1981-006, Forwards Updated LER 81-006/03X-1 & LER 81-059/03L-0 | Forwards Updated LER 81-006/03X-1 & LER 81-059/03L-0 | | | 05000315/LER-1981-006-03, /03L-0:on 810317,ground Detected & Traced to Power Cable for Motor Operated Isolation valve,IMO-910,in Flowpath from RWST to Centrifugal Charging Pumps.Caused by Cable Damaged Near Termination at Motor Operator Junction Box | /03L-0:on 810317,ground Detected & Traced to Power Cable for Motor Operated Isolation valve,IMO-910,in Flowpath from RWST to Centrifugal Charging Pumps.Caused by Cable Damaged Near Termination at Motor Operator Junction Box | | | 05000315/LER-1981-007-03, /03L-0:on 810318,loop 2 T-average & delta-T Indicated Low Temps.Caused by Resistance Temp Detector Producing Erroneous Temp Readings.Detector Replaced & Trip Setpoints Verified | /03L-0:on 810318,loop 2 T-average & delta-T Indicated Low Temps.Caused by Resistance Temp Detector Producing Erroneous Temp Readings.Detector Replaced & Trip Setpoints Verified | | | 05000316/LER-1981-007-03, /03L-0:on 810315 During Operation of 2CD Emergency Diesel in Preparation for Surveillance,Hot Starting Air Line Observed.Caused by Valve Damage & Exhaust Expansion Joint Inner Liner Failure.Intake & Exhaust Valves Replaced | /03L-0:on 810315 During Operation of 2CD Emergency Diesel in Preparation for Surveillance,Hot Starting Air Line Observed.Caused by Valve Damage & Exhaust Expansion Joint Inner Liner Failure.Intake & Exhaust Valves Replaced | | | 05000315/LER-1981-007, Forwards LER 81-007/03L-0 | Forwards LER 81-007/03L-0 | | | 05000315/LER-1981-008, Forwards LER 81-008/03L-0 | Forwards LER 81-008/03L-0 | | | 05000316/LER-1981-008-03, /03L-0:on 810407,during Fire Protection Spray Sys Surveillance Test,Eight Spray Nozzles for Engineered Safety Features Vent Charcoal Filter 2-HV-AES-1 & 14 Nozzles for 2-HV-AES-2 Were Found Partially Plugged.Sys Flushed | /03L-0:on 810407,during Fire Protection Spray Sys Surveillance Test,Eight Spray Nozzles for Engineered Safety Features Vent Charcoal Filter 2-HV-AES-1 & 14 Nozzles for 2-HV-AES-2 Were Found Partially Plugged.Sys Flushed | | | 05000315/LER-1981-008-03, /03L-0:on 810317,large Piece of Herculite Found Securely Fastened in Canopy Fashion Over Walkway & Plastic Pail Found in Vicinity of Lower Ice Condenser Access Door. Cause Not Determined.Canopy Disassembled & Bucket Removed | /03L-0:on 810317,large Piece of Herculite Found Securely Fastened in Canopy Fashion Over Walkway & Plastic Pail Found in Vicinity of Lower Ice Condenser Access Door. Cause Not Determined.Canopy Disassembled & Bucket Removed | | | 05000316/LER-1981-008, Forwards LER 81-008/03L-0 | Forwards LER 81-008/03L-0 | | | 05000316/LER-1981-009, Confirms 810710 Verbal Rept to Region 3 Providing Correction to LER 81-09/03L-0.Written Revision to Be Submitted Under Separate Cover | Confirms 810710 Verbal Rept to Region 3 Providing Correction to LER 81-09/03L-0.Written Revision to Be Submitted Under Separate Cover | | | 05000316/LER-1981-009-03, /03L-0:on 810331,after Entering Mode 6 & Floodup of Reactor Cavity,Routine Analysis of RCS Indicated Chloride Concentration of 0.26 Ppm.Cause Is Undetermined. Contamination Was Reduced by Purification | /03L-0:on 810331,after Entering Mode 6 & Floodup of Reactor Cavity,Routine Analysis of RCS Indicated Chloride Concentration of 0.26 Ppm.Cause Is Undetermined. Contamination Was Reduced by Purification | | | 05000315/LER-1981-009, Forwards LER 81-009/03L-0 | Forwards LER 81-009/03L-0 | | | 05000315/LER-1981-009-03, /03L-0:on 810408,during Fire Protection Spray Sys Surveillance Test,Eight Spray Nozzles for Engineered Safety Feature Charcoal Filter 1-HV-AES-1 Were Found Partially Plugged.Caused by Buildup of Debris in Nozzles.Sys Flushed | /03L-0:on 810408,during Fire Protection Spray Sys Surveillance Test,Eight Spray Nozzles for Engineered Safety Feature Charcoal Filter 1-HV-AES-1 Were Found Partially Plugged.Caused by Buildup of Debris in Nozzles.Sys Flushed | | | 05000315/LER-1981-010, Forwards LER 81-010/03L-0 | Forwards LER 81-010/03L-0 | | | 05000315/LER-1981-010-03, /03L-0:on 810414,root Isolation Valve for Containment Pressure Transmitter PPP-301 Was Found Closed. Cause Unknown.Valve Opened & Modified So That Valve Movement Will Be More Apparent | /03L-0:on 810414,root Isolation Valve for Containment Pressure Transmitter PPP-301 Was Found Closed. Cause Unknown.Valve Opened & Modified So That Valve Movement Will Be More Apparent | | | 05000316/LER-1981-010-03, /03L-0:on 810411,snubbers 1 & 29 Were Found Inoperable.Caused by Fluid Leak on 29 Due to Separation of Joint at End Seal O-ring.O-ring Replaced.Snubber 1 Upside Down Due to Loose Extension Rod Locknut.Locknut Tightened | /03L-0:on 810411,snubbers 1 & 29 Were Found Inoperable.Caused by Fluid Leak on 29 Due to Separation of Joint at End Seal O-ring.O-ring Replaced.Snubber 1 Upside Down Due to Loose Extension Rod Locknut.Locknut Tightened | | | 05000315/LER-1981-011, Forwards LER 81-011/03L-0 | Forwards LER 81-011/03L-0 | | | 05000316/LER-1981-011-03, /03L-0:on 810411,steam Line Pressure Transmitter MPP-210 Was Found Exceeding Allowable Value for Differential Pressure Between Steam Lines.Caused by Instrument Drift. Transmitter Recalibr | /03L-0:on 810411,steam Line Pressure Transmitter MPP-210 Was Found Exceeding Allowable Value for Differential Pressure Between Steam Lines.Caused by Instrument Drift. Transmitter Recalibr | | | 05000315/LER-1981-011-03, /03L-0:on 810413,while Examining Test Data from Type B & C Leak Rate Tests,Jul 1980 Test for Unit 1 Found to Have Exceeded Allowable Value of Tech Specs.Caused by Faulty NESW Check Valves.Valves Repaired | /03L-0:on 810413,while Examining Test Data from Type B & C Leak Rate Tests,Jul 1980 Test for Unit 1 Found to Have Exceeded Allowable Value of Tech Specs.Caused by Faulty NESW Check Valves.Valves Repaired | | | 05000316/LER-1981-012-03, /03L-0:on 810413,cracks Found in Divider Barrier Seal.Cause Unknown.Defective Portions Replaced | /03L-0:on 810413,cracks Found in Divider Barrier Seal.Cause Unknown.Defective Portions Replaced | | | 05000315/LER-1981-012-03, L-0:on 810428,Steam Generator 2,Channel 4 Level Indication Found Indicating High.Caused by Leak on Ref Line of Transmitter BLP-120.Leak Suspected Inside Containment & Will Be Corrected on Next Refueling Outage | L-0:on 810428,Steam Generator 2,Channel 4 Level Indication Found Indicating High.Caused by Leak on Ref Line of Transmitter BLP-120.Leak Suspected Inside Containment & Will Be Corrected on Next Refueling Outage | | | 05000315/LER-1981-012, Forwards LER 81-012/03L-0 | Forwards LER 81-012/03L-0 | | | 05000316/LER-1981-013-03, /03L-0:on 810428,all Charging Pumps Were Removed from Svc Contrary to Tech Spec Requirements.Caused by Leak on East Pump Discharge Isolation Valve CS-300E.Valve Repacked.Drain Valve CS-349 Also Repacked | /03L-0:on 810428,all Charging Pumps Were Removed from Svc Contrary to Tech Spec Requirements.Caused by Leak on East Pump Discharge Isolation Valve CS-300E.Valve Repacked.Drain Valve CS-349 Also Repacked | | | 05000316/LER-1981-013, Forwards LER 81-013/03L-0 | Forwards LER 81-013/03L-0 | | | 05000315/LER-1981-013, Forwards Revised LER 81-013/03X-1 & LER 81-023/03L-0 | Forwards Revised LER 81-013/03X-1 & LER 81-023/03L-0 | | | 05000315/LER-1981-013-03, Source Range Ni Channels Declared Inoperable.Caused by Defective Source Range Detector N-32 Possibly Due to Dried Moisture Connectors. Detector Replaced | Source Range Ni Channels Declared Inoperable.Caused by Defective Source Range Detector N-32 Possibly Due to Dried Moisture Connectors. Detector Replaced | | | 05000316/LER-1981-014, Forwards LER 81-014/03L-0 | Forwards LER 81-014/03L-0 | | | 05000315/LER-1981-014-03, /03L-0:on 810606,during Surveillance insp,non- Penetrating Cracks Were Found in Divider Barrier Seal.Cause Unknown.Defective Portions of Seal Replaced | /03L-0:on 810606,during Surveillance insp,non- Penetrating Cracks Were Found in Divider Barrier Seal.Cause Unknown.Defective Portions of Seal Replaced | | | 05000316/LER-1981-014-03, /03L-0:on 810415,steam Generator Level Protection Set 3 Transmitter BLP-142 Was Found Outside Tech Spec.Caused by Instrument Drift.Transmitter Recalibr | /03L-0:on 810415,steam Generator Level Protection Set 3 Transmitter BLP-142 Was Found Outside Tech Spec.Caused by Instrument Drift.Transmitter Recalibr | |
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