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{{#Wiki_filter:REPORTOFTYPEBANDCLEAKRATESD.C.COOKPLANTUNIT2-1984MDTROINNEfMNPY.(8gg0gq0030 8+<0<~PDR*DOCY050003i6P,PDR 0
{{#Wiki_filter:REPORT OF TYPE B AND C LEAK RATES D.C.COOK PLANT UNIT 2-1984 MDTRO INNEf M NPY.(8gg0gq0030 8+<0<~PDR*DOCY 050003i6 P, PDR 0
jTABLEOFCONTENTSSECTION1.12.0TITLESUMMARYOFRESULTSTABLES2.1TABLE12.2TABLE22.3TABLE3PAGE2-3 1..0SUMMARYOFRESULTSAsindicated intheaccommanying ILRTreport,TypeAleakagetestresultsdonotindicateafailuretomeetthecontainment overallleakageacceptance criteria.
j TABLE OF CONTENTS SECTION 1.1 2.0 TITLE
Guideline TypeB&Cleakageswereexceeded, however,asdetailedinthefollowing.
TypesB&CLeakRateTesting(**12THP'4030STP.203)wasperformed onUnit2betweenMarch12,1984andJune29,1984.TableOlshowsthevalvesthatexceededtheirrespective guideline leakages.
Table52givesabriefsummaryoftherepairsmadetoleakingvalves.Tablee3showsabriefhistoryofthesevalvesastestedduringprevioussurveillances.
WhiletestingZone4pipingpentrations, severalpenetrations werefoundtobeleaking.Thesepenetrations wereCPN-4,CPN-23,CPN-40,&CPN-44.CPN-4wasrepairedby,weldingaholeinthebellows.CPN-23,CPN-40,&CPN-44alsohadholesinthebellowsbut.werenotrepairedperAEPSCreviewoftheplantFSARdetermining thatbellowsoncontainment, penetrations arenotneededtomaintaintheleak-tight integrity ofcontainment.
Zone4wastestedafterisolating theabovepenetrations.
PAGE1


VolumeDescription ValveTABLE1Guideline (sccm)AsFoundAsLeft(sccm)(sccm)UpperVent.SupplyAirPart.Rad.Mon.VCR-1058VCR-205SM-13600602001962380109NitrogentoPRTN-1598N-2854556540ChargingtoRegen.HxRCDTVentHeaderRCTVentHeaderCLVGCUVDrainHeaderRHRRecirc'E'owerCont.MonitorAirParticlRad.MonBoronInjection BoronInjection CPNCoils384CCWGlycolReturnExpan.PostAccidentSampleSupPostAccidentSampleSupCS<<321DCR-2038DCR-207N-1608DCR-201,.DCR-620 6DCR-621ICM-305ECR-338ECR-35ECR-316ECR-32ICM-251ICM-250~CCW-243-72 R-157JECR-416ECR-41718012012012010806012024024060601515238182971639240759102495130070318543229794725029974420258190712434051120 WL VolumeDescription ValveGuideline (sccm)AsFoundAsLeft(sccm)(sccm)ControlAirToCont.CPNCoils285CCWCPNCoils384CCWCPNCoils285CCWPlantAirtoCont.checkValvesPersonnel AirlockCoverFlangeZone4PipingPene.XCR-102&XCR-103 CCW-243-'25,>
==SUMMARY==
CCW-244-72 CCR-440PA"342N/AN/A1206060601205511735321092711883974121198535321092711883974121802 TABLE2DuringtheB&Cleakratetestingthefollowing penetrations"'ere foundtohaveexcessive leakratesandrequiredrepairs:VolumeDescritionUpperVent,SupplyAirPart.Rad.Mon.NitrogentoPRTChargingtoRegn.HxRCDTVentHeaderRCDTVentHeaderValve$jVCR-105&VCR-205 SM-1N-159&N-285 CS"321DCR-203&DCR-207 N-160&DCR-201R~eaieaVCR-105:Xnspected seal&seat,foundnodamageVCR-205:Manufacturer replacedseal,repairedseat,replaceddowelpinReplacedValveN-159:Lappedseat,replaced.plug,spring,&gasketN-285:Replacedwedge&gasketReplaceddisc&gasketDCR-203:Norepairnecessary DCR-207:Replaceddiaphragm N-160:Cleanedvalvedisc&seatDCR-201:Norepairnecessary CLV&CUVDrainHeaderDCR-620&CR-621 DCR-620:CleanedseatDCR-621:Cleanedseat,replacedpacking10KRecirc.'E'CM-305 Lappeddisc.LowerCont.MonitorECR-33&ECR-35AirParticleRad.MonECR-31&ECR-32ECR-33:Cleaned&lappedseatECR-35:Machinedseats&repackedvalveECR-31:Iappedplug&seat,replacedgasketsECR-32:Norepairsreq'uired BoronInjection BoronInjection CPNCoils3&4CCWGlycolReturnExpan.ICM-251XCM-250CCW-243-72 R-157IappedseatLappedSeatReplacedvalveCleanedseatPostAccidentSample...ECR-416Sup.aaLapped&machinedseat&plug,replacedgasketPAGE4
OF RESULTS TABLES 2.1 TABLE 1 2.2 TABLE 2 2.3 TABLE 3 PAGE 2-3 1..0
~~4 TABLETWO(con't.)VolumeDescritionValve8R~eeirePostAccidentSampleSup.Zone4PipingPenetrations ECR-417N/ALappedseat6plug,replacedgasketWeldedholeinbellowsofCPN-4.CPN-23,CPN-40andCPN-44wereisolatedfromthecontainment penetration andweldchannelpressurization systemPAGE5 i''~=vi,I,II'Clq TABLE3Valve.Guide-~1ineMar84-Jun84 Nov82-an8arsccmfoundeftfoundetVCR-205&VCR-2053600sccm20019SCCm80SccsccmScc12412SM-IN-159&N-2856045623565109'0120120501501240240CS-321DCR-203&DCR-207N-160&DCR-201DCR-620&DCR-621180120120'202972016258240723818744169770650I2I106125I812ICM-305108059100202I0I0ECR-33&ECR-35ECR-31&ECR-3260120245I07I00124421421220II4014IICM-25I240704'067ICM-250CCW-243-7224060I422120I62R-157607940ECR-41615250ECR-417XCR-102&XCR-103CCM-243-2515120605325321091094141910100CCW-244-7260'7127117044651802CCR-440PA-342AirlockCoverFlan.601201881889743974121121213250NA49.64.6NNZone4Pip~Peetration117802Page6
 
==SUMMARY==
OF RESULTS As indicated in the accommanying ILRT report, Type A leakage test results do not indicate a failure to meet the containment overall leakage acceptance criteria.Guideline Type B&C leakages were exceeded, however, as detailed in the following.
Types B&C Leak Rate Testing (**12 THP'4030 STP.203)was performed on Unit 2 between March 12, 1984 and June 29, 1984.Table Ol shows the valves that exceeded their respective guideline leakages.Table 52 gives a brief summary of the repairs made to leaking valves.Table e3 shows a brief history of these valves as tested during previous surveillances.
While testing Zone 4 piping pentrations, several penetrations were found to be leaking.These penetrations were CPN-4, CPN-23, CPN-40,&CPN-44.CPN-4 was repaired by ,welding a hole in the bellows.CPN-23, CPN-40,&CPN-44 also had holes in the bellows but.were not repaired per AEPSC review of the plant FSAR determining that bellows on containment, penetrations are not needed to maintain the leak-tight integrity of containment.
Zone 4 was tested after isolating the above penetrations.
PAGE 1
 
Volume Description Valve TABLE 1 Guideline (sccm)As Found As Left (sccm)(sccm)Upper Vent.Supply Air Part.Rad.Mon.VCR-105 8 VCR-205 SM-1 3600 60 20019 623 80 109 Nitrogen to PRT N-159 8 N-285 45 565 40 Charging to Regen.Hx RCDT Vent Header RCT Vent Header CLVGCUV Drain Header RHR Recirc'E'ower Cont.Monitor Air Particl Rad.Mon Boron Injection Boron Injection CPN Coils 384 CCW Glycol Return Expan.Post Accident Sample Sup Post Accident Sample Sup CS<<321 DCR-203 8 DCR-207 N-160 8 DCR-201 ,.DCR-620 6 DCR-621 ICM-305 ECR-33 8 ECR-35 ECR-31 6 ECR-32 ICM-251 ICM-250~CCW-243-72 R-157 J ECR-416 ECR-417 180 120 120 120 1080 60 120 240 240 60 60 15 15 23818 297 1639 2407 5910 2495 1300 703 1854 3229 7947 250 299 744 20 258 1907 1243 40 51 120 W L Volume Description Valve Guideline (sccm)As Found As Left (sccm)(sccm)Control Air To Cont.CPN Coils 285 CCW CPN Coils 384 CCW CPN Coils 285 CCW Plant Air to Cont.check Valves Personnel Airlock Cover Flange Zone 4 Piping Pene.XCR-102&XCR-103 CCW-243-'25,>
CCW-244-72 CCR-440 PA"342 N/A N/A 120 60 60 60 120 55 1173 532 109 271 188 3974 121 19853 532 109 271 188 3974 121 802 TABLE 2 During the B&C leak rate testing the following penetrations"'ere found to have excessive leak rates and required repairs: Volume Descri tion Upper Vent, Supply Air Part.Rad.Mon.Nitrogen to PRT Charging to Regn.Hx RCDT Vent Header RCDT Vent Header Valve$j VCR-105&VCR-205 SM-1 N-159&N-285 CS"321 DCR-203&DCR-207 N-160&DCR-201 R~eaiea VCR-105: Xnspected seal&seat, found no damage VCR-205: Manufacturer replaced seal, repaired seat, replaced dowel pin Replaced Valve N-159: Lapped seat, replaced.plug, spring,&gasket N-285: Replaced wedge&gasket Replaced disc&gasket DCR-203: No repair necessary DCR-207: Replaced diaphragm N-160: Cleaned valve disc&seat DCR-201: No repair necessary CLV&CUV Drain Header DCR-620&CR-621 DCR-620: Cleaned seat DCR-621: Cleaned seat, replaced packing 10K Recirc.'E'CM-305 Lapped disc.Lower Cont.Monitor ECR-33&ECR-35 Air Particle Rad.Mon ECR-31&ECR-32 ECR-33: Cleaned&lapped seat ECR-35: Machined seats&repacked valve ECR-31: Iapped plug&seat, replaced gaskets ECR-32: No repairs req'uired Boron Injection Boron Injection CPN Coils 3&4 CCW Glycol Return Expan.ICM-251 XCM-250 CCW-243-72 R-157 Iapped seat Lapped Seat Replaced valve Cleaned seat Post Accident Sample...ECR-416 Sup.a a Lapped&machined seat&plug, replaced gasket PAGE 4
~~4 TABLE TWO (con't.)Volume Descri tion Valve 8 R~eeire Post Accident Sample Sup.Zone 4 Piping Penetrations ECR-417 N/A Lapped seat 6 plug, replaced gasket Welded hole in bellows of CPN-4.CPN-23, CPN-40 and CPN-44 were isolated from the containment penetration and weld channel pressurization system PAGE 5 i''~=vi, I, II'C lq TABLE 3 Valve.Guide-~1 ine Mar84-Jun84 Nov82-an8 ar sccm found eft found e t VCR-205&VCR-205 3600 sccm 20019 SCCm 80 Scc sccm Scc 124 12 SM-I N-159&N-285 60 45 623 565 109'0 120 120 501 501 2 40 2 40 CS-321 DCR-203&DCR-207 N-160&DCR-201 DCR-620&DCR-621 180 120 120'20 297 20 16 258 2407 23818 744 16977 06 50 I 2 I 10 61 25 I 8 12 ICM-305 1080 5910 02 02 I 0 I 0 ECR-33&EC R-35 ECR-31&ECR-32 60 120 24 5 I 07 I 00 124 421 421 22 0 I I 40 14 I ICM-25I 240 70 4'0 6 7 ICM-250 CCW-243-72 240 60 I 4 22 120 I 6 2 R-157 60 794 0 ECR-416 15 250 ECR-417 XCR-102&XCR-103 CCM-243-25 15 120 60 532 532 109 109 41 419 1010 0 CCW-244-72 60'71 271 170 4 4 65 1802 CCR-440 PA-342 Airlock Cover Flan.60 120 188 188 974 3974 121 121 21325 0 N A 49.6 4.6 N N Zone 4 Pip~Pe etration 117 802 Page 6
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Revision as of 09:51, 6 July 2018

Summary of Type B & C Leak Rates, for 1984
ML17321A181
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 12/31/1984
From:
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17321A180 List:
References
NUDOCS 8410290030
Download: ML17321A181 (14)
v • d • e


Text

REPORT OF TYPE B AND C LEAK RATES D.C.COOK PLANT UNIT 2-1984 MDTRO INNEf M NPY.(8gg0gq0030 8+<0<~PDR*DOCY 050003i6 P, PDR 0

j TABLE OF CONTENTS SECTION 1.1 2.0 TITLE

SUMMARY

OF RESULTS TABLES 2.1 TABLE 1 2.2 TABLE 2 2.3 TABLE 3 PAGE 2-3 1..0

SUMMARY

OF RESULTS As indicated in the accommanying ILRT report, Type A leakage test results do not indicate a failure to meet the containment overall leakage acceptance criteria.Guideline Type B&C leakages were exceeded, however, as detailed in the following.

Types B&C Leak Rate Testing (**12 THP'4030 STP.203)was performed on Unit 2 between March 12, 1984 and June 29, 1984.Table Ol shows the valves that exceeded their respective guideline leakages.Table 52 gives a brief summary of the repairs made to leaking valves.Table e3 shows a brief history of these valves as tested during previous surveillances.

While testing Zone 4 piping pentrations, several penetrations were found to be leaking.These penetrations were CPN-4, CPN-23, CPN-40,&CPN-44.CPN-4 was repaired by ,welding a hole in the bellows.CPN-23, CPN-40,&CPN-44 also had holes in the bellows but.were not repaired per AEPSC review of the plant FSAR determining that bellows on containment, penetrations are not needed to maintain the leak-tight integrity of containment.

Zone 4 was tested after isolating the above penetrations.

PAGE 1

Volume Description Valve TABLE 1 Guideline (sccm)As Found As Left (sccm)(sccm)Upper Vent.Supply Air Part.Rad.Mon.VCR-105 8 VCR-205 SM-1 3600 60 20019 623 80 109 Nitrogen to PRT N-159 8 N-285 45 565 40 Charging to Regen.Hx RCDT Vent Header RCT Vent Header CLVGCUV Drain Header RHR Recirc'E'ower Cont.Monitor Air Particl Rad.Mon Boron Injection Boron Injection CPN Coils 384 CCW Glycol Return Expan.Post Accident Sample Sup Post Accident Sample Sup CS<<321 DCR-203 8 DCR-207 N-160 8 DCR-201 ,.DCR-620 6 DCR-621 ICM-305 ECR-33 8 ECR-35 ECR-31 6 ECR-32 ICM-251 ICM-250~CCW-243-72 R-157 J ECR-416 ECR-417 180 120 120 120 1080 60 120 240 240 60 60 15 15 23818 297 1639 2407 5910 2495 1300 703 1854 3229 7947 250 299 744 20 258 1907 1243 40 51 120 W L Volume Description Valve Guideline (sccm)As Found As Left (sccm)(sccm)Control Air To Cont.CPN Coils 285 CCW CPN Coils 384 CCW CPN Coils 285 CCW Plant Air to Cont.check Valves Personnel Airlock Cover Flange Zone 4 Piping Pene.XCR-102&XCR-103 CCW-243-'25,>

CCW-244-72 CCR-440 PA"342 N/A N/A 120 60 60 60 120 55 1173 532 109 271 188 3974 121 19853 532 109 271 188 3974 121 802 TABLE 2 During the B&C leak rate testing the following penetrations"'ere found to have excessive leak rates and required repairs: Volume Descri tion Upper Vent, Supply Air Part.Rad.Mon.Nitrogen to PRT Charging to Regn.Hx RCDT Vent Header RCDT Vent Header Valve$j VCR-105&VCR-205 SM-1 N-159&N-285 CS"321 DCR-203&DCR-207 N-160&DCR-201 R~eaiea VCR-105: Xnspected seal&seat, found no damage VCR-205: Manufacturer replaced seal, repaired seat, replaced dowel pin Replaced Valve N-159: Lapped seat, replaced.plug, spring,&gasket N-285: Replaced wedge&gasket Replaced disc&gasket DCR-203: No repair necessary DCR-207: Replaced diaphragm N-160: Cleaned valve disc&seat DCR-201: No repair necessary CLV&CUV Drain Header DCR-620&CR-621 DCR-620: Cleaned seat DCR-621: Cleaned seat, replaced packing 10K Recirc.'E'CM-305 Lapped disc.Lower Cont.Monitor ECR-33&ECR-35 Air Particle Rad.Mon ECR-31&ECR-32 ECR-33: Cleaned&lapped seat ECR-35: Machined seats&repacked valve ECR-31: Iapped plug&seat, replaced gaskets ECR-32: No repairs req'uired Boron Injection Boron Injection CPN Coils 3&4 CCW Glycol Return Expan.ICM-251 XCM-250 CCW-243-72 R-157 Iapped seat Lapped Seat Replaced valve Cleaned seat Post Accident Sample...ECR-416 Sup.a a Lapped&machined seat&plug, replaced gasket PAGE 4

~~4 TABLE TWO (con't.)Volume Descri tion Valve 8 R~eeire Post Accident Sample Sup.Zone 4 Piping Penetrations ECR-417 N/A Lapped seat 6 plug, replaced gasket Welded hole in bellows of CPN-4.CPN-23, CPN-40 and CPN-44 were isolated from the containment penetration and weld channel pressurization system PAGE 5 i~=vi, I, II'C lq TABLE 3 Valve.Guide-~1 ine Mar84-Jun84 Nov82-an8 ar sccm found eft found e t VCR-205&VCR-205 3600 sccm 20019 SCCm 80 Scc sccm Scc 124 12 SM-I N-159&N-285 60 45 623 565 109'0 120 120 501 501 2 40 2 40 CS-321 DCR-203&DCR-207 N-160&DCR-201 DCR-620&DCR-621 180 120 120'20 297 20 16 258 2407 23818 744 16977 06 50 I 2 I 10 61 25 I 8 12 ICM-305 1080 5910 02 02 I 0 I 0 ECR-33&EC R-35 ECR-31&ECR-32 60 120 24 5 I 07 I 00 124 421 421 22 0 I I 40 14 I ICM-25I 240 70 4'0 6 7 ICM-250 CCW-243-72 240 60 I 4 22 120 I 6 2 R-157 60 794 0 ECR-416 15 250 ECR-417 XCR-102&XCR-103 CCM-243-25 15 120 60 532 532 109 109 41 419 1010 0 CCW-244-72 60'71 271 170 4 4 65 1802 CCR-440 PA-342 Airlock Cover Flan.60 120 188 188 974 3974 121 121 21325 0 N A 49.6 4.6 N N Zone 4 Pip~Pe etration 117 802 Page 6

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