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{{#Wiki_filter:R=GULJRYivFOR~ATrnV DISTRTBUTI SYSTEV(RIDSiACCKSSIOV VSR:8110160462'OC
{{#Wiki_filter:R=GUL JRY ivFOR~ATrnV DISTRTBUTI SYSTEV (RIDSi ACCKSSIOV VSR:8110160462'OC
~DATKi:81/10/14VOTARIZEO:
~DATKi: 81/10/14 VOTARIZEO:
NOFACILi:50-387 Susquehanna SteamElectricStationiUnit1,Pennsylve 50398Sgsquehannai Steam"ElectricStationiUnit2PPennsylva AUTHi.NA'41EI AUTHOR'FFILI.Al'"IONCURTIS'o4~Pennsylvania.
NO FACILi:50-387 Susquehanna Steam Electr ic Stationi Unit 1, Pennsylve 50 398 Sgsquehannai Steam" Electric Stationi Unit 2P Pennsylva AUTHi.NA'41EI AUTHOR'F FILI.A l'"ION CURTIS'o 4~Pennsylvania.
PowerE,Light'o.RECIP,VAMIRECAPIKVi'FFIl.IAT'IOVTEDESCOPR
Power E, Light'o.RECIP, VAM I RECAP IKV i'FF Il.I AT'IOV TEDESCOPR~Lt, Assistant Director fori Licensing 30CKKT'05000387 0.0 SUBJ=CT: Discusses'~1 ong.term ooer aoi 1 i ty of deco dr af t pum response.to NIiC 810813 1tr.Or igfnal installation adequate~Pump%valve iniservi ce inso or ogrami requ for vibrati on survei 1 1 ances ar ei sat i sfactor y~OISTRIS JTISN COOii: B021S'OPIES'EC=EVEO.LTR J,'NCL Q TITL=i"'ot respondcncei for Operating.
~Lt,Assistant DirectorforiLicensing 30CKKT'050003870.0SUBJ=CT:Discusses'~1 ong.termooeraoi1ityofdecodraftpumresponse.
L Von Operating Facile 40TES:IWK,:3 ccodes FSARi 4 all amends.LPDR:2cys IB,K::3 conies FSARi 4 all amends.LPOR:2'ys ps p i n'f oumos i s ir ements SIZE".:~ty (ei,g.Vorth Ann 05090387 05000388 ACTION<ECIoIKNT''iI COOK/IV AM"-I LI'R&#xb9;2'C 04 ST'ARK p RI, 05 COPIES LTTR E VCLi 1 i 1 RKC I P I EIVT.ID COOK/NAME L'IC BR&#xb9;2 LA COPTKS LTTR':NCL 1 INT'ERNAI 1 ACCORD 1VAL BABB CHEM EVG BRi 09'ORE PKRF BR 11 DIR'i LI CEVBING.EL', GK JSCIKN BRi 15 HU'4'A CiT'NG 8RI Ia"'YS BR 18 I E'/E P D Bl LIC GUID BR'NATL EVG.BR'0 MPA OP LIC 8RI POHERI SYS BR 21 QA SR 231 RE'AC SYS BRI 25, SIJTI ANAL.BRz 26 1.1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 AUX SY3 BR 08 CONT'YS BR 10 OIR'p HUM FAC S12'FF TR'YS BR13 EQUIP QUAl BR14'iUM''ACT'NG 16'YD'/GEO BR 17 ILE'7 IE/KPL8'iIC'QUAL BR'NlKCH KNG BR 20'VRR'/OS I'O/RS OR1 ASSESS BR.ROC/TST'EV 22'SSESS BR24 3 FI.Oi STRUCT KNG BR27 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 1 1 1 1 1 1 1 i 1 i EXlERNALc ACR8 LPOR 148'I C 29'3 0 61 16 6 1 FKMA~REP OIV VRC POR'2'4'T I S 1 1 1 1.1 OC~>0 c'I TOTAL,VUMBERi OF COPIES'EQUIRED!:
toNIiC8108131tr.Origfnalinstallation adequate~Pump%valveiniserviceinsoorogramirequforvibrationsurvei11ancesareisatisfactory~OISTRISJTISNCOOii:B021S'OPIES'EC=EVEO.LTR J,'NCLQTITL=i"'otrespondcncei forOperating.
L~TTR ENCl, 5  
LVonOperating Facile40TES:IWK,:3 ccodesFSARi4allamends.LPDR:2cys IB,K::3coniesFSARi4allamends.LPOR:2'ys pspin'foumosisirementsSIZE".:~ty(ei,g.VorthAnn0509038705000388ACTION<ECIoIKNT''iI COOK/IVAM"-ILI'R&#xb9;2'C04ST'ARKpRI,05COPIESLTTREVCLi1i1RKCIPIEIVT.IDCOOK/NAME L'ICBR&#xb9;2LACOPTKSLTTR':NCL 1INT'ERNAI 1ACCORD1VALBABBCHEMEVGBRi09'OREPKRFBR11DIR'iLICEVBING.EL',GKJSCIKNBRi15HU'4'ACiT'NG8RIIa"'YSBR18IE'/EPDBlLICGUIDBR'NATLEVG.BR'0MPAOPLIC8RIPOHERISYSBR21QASR231RE'ACSYSBRI25,SIJTIANAL.BRz261.11114111111111111AUXSY3BR08CONT'YSBR10OIR'pHUMFACS12'FFTR'YSBR13EQUIPQUAlBR14'iUM''ACT'NG 16'YD'/GEO BR17ILE'7IE/KPL8'iIC'QUAL BR'NlKCHKNGBR20'VRR'/OSI'O/RSOR1ASSESSBR.ROC/TST'EV 22'SSESSBR243FI.OiSTRUCTKNGBR27111111111111133331111111i1iEXlERNALc ACR8LPOR148'IC29'30611661FKMA~REPOIVVRCPOR'2'4'T IS1111.1OC~>0c'ITOTAL,VUMBERi OFCOPIES'EQUIRED!:
L~TTRENCl,5  


Pennsylvania Power8LightCompanyTwoNorthNinthStreet~Allentown, PA18101~215/770.5151NormanW.CurtisVicePresident-Engineering
Pennsylvania Power 8 Light Company Two North Ninth Street~Allentown, PA 18101~215/770.5151 Norman W.Curtis Vice President-Engineering
&Construction-Nuclear 215/770-5381October14,1981Mr.RobertL.TedescoAssistant DirectorforLicensing DivisionofLicensing OfficeofNuclearReactorRegulation U.S.NuclearRegulatory Commission Washington, D.C.20555DocketNos.50-38750-388SUSQUEHANNA STEAMELECTRICSTATIONLONGTERMOPERABILITY OFDEEPDRAFTPUMPSER100450FILE841-2PLA-944
&Construction-Nuclear 21 5/770-5381 October 14, 1981 Mr.Robert L.Tedesco Assistant Director for Licensing Division of Licensing Office of Nuclear Reactor Regulation U.S.Nuclear Regulatory Commission Washington, D.C.20555 Docket Nos.50-387 50-388 SUSQUEHANNA STEAM ELECTRIC STATION LONG TERM OPERABILITY OF DEEP DRAFT PUMPS ER 100450 FILE 841-2 PLA-944  


==DearMr.Tedesco:==
==Dear Mr.Tedesco:==
InresponsetotheAugust13,1981letterontheLongTermOperability ofDeepDraftPumpswhichdividedtherecommended actionsintoinstallation instructions andtestingprocedures, Pennsylvania PowerandLightCompanyhasreviewedtheconcernsraisedandhasreachedthefollowing conclusions.
In response to the August 13, 1981 letter on the Long Term Operability of Deep Draft Pumps which divided the recommended actions into installation instructions and testing procedures, Pennsylvania Power and Light Company has reviewed the concerns raised and has reached the following conclusions.
Theoriginalinstallation ofthedeepdraftpumpsonsiteisdeemedadequate.
The original installation of the deep draft pumps on site is deemed adequate.The procedures used for the installation are available onsite for IE Inspector review.These procedures ensured installation was within the manufacturers.
Theprocedures usedfortheinstallation areavailable onsiteforIEInspector review.Theseprocedures ensuredinstallation waswithinthemanufacturers.
tolerances.
tolerances.
Further,thesepumpshaveoperatedwithoutincident, asdescribed laterinthisletter.Pumpremovalandreinstallation forthesolepurposeofverifying properinstallation isunnecessary.
Further, these pumps have operated without incident, as described later in this letter.Pump removal and reinstallation for the sole purpose of verifying proper installation is unnecessary.
Deepdraftpumpassemblyanddisassembly maintenance procedures willberevisedtoincludestepssimilar'totherecommended guidelines statedinthesubjectletter.However,opticalalignment toassuremaximumstraightness andconcentricity oftheassemblyisunnecessary.
Deep draft pump assembly and disassembly maintenance procedures will be revised to include steps similar'to the recommended guidelines stated in the subject letter.However, optical alignment to assure maximum straightness and concentricity of the assembly is unnecessary.
Dialindication alignment checkswillbeperformed.
Dial indication alignment checks will be performed.
Additionally, thepump-tomotor flangeparallelism andshaftperpendicularity checkswillbeincluded.
Additionally, the pump-tomotor flange parallelism and shaft perpendicularity checks will be included.Construction of the sumps for the deep draft pumps has also been completed.
Construction ofthesumpsforthedeepdraftpumpshasalsobeencompleted.
Pump testing has been performed to verify the absence of fluid anomalies, such as vortexing'r turbulance, in the suppression pool near, the Residual Heat Removal Pump intakes and the Core Spray Pump intakes., The three phase testing program proposed to ensure pump operability and to determine bearing wear trends is considered unadvisable at this time.This posture is based on the pumps having previously experienced a considerable
Pumptestinghasbeenperformed toverifytheabsenceoffluidanomalies, suchasvortexing'r turbulance, inthesuppression poolnear,theResidualHeatRemovalPumpintakesandtheCoreSprayPumpintakes.,Thethreephasetestingprogramproposedtoensurepumpoperability andtodetermine bearingweartrendsisconsidered unadvisable atthistime.Thispostureisbasedonthepumpshavingpreviously experienced aconsiderable
//Q number of operating hours without difficulty.
//Qnumberofoperating hourswithoutdifficulty.
Further, the potential problems SiiOih0462 SiiOi4 PDR ADGCK 05000387.PDR Mr.Robert L.Tedesco Page 2'ctober 14, 1981 PLa-944 associated with repeated disassembly/reassembly outweigh the beneficial effects of such checks.PP&L considers the Pump and Valve Inservice Inspection Program requirements for vibration surveillances using contact probes satisfactory for trend determination.
Further,thepotential problemsSiiOih0462 SiiOi4PDRADGCK05000387.PDR Mr.RobertL.TedescoPage2'ctober14,1981PLa-944associated withrepeateddisassembly/reassembly outweighthebeneficial effectsofsuchchecks.PP&Lconsiders thePumpandValveInservice Inspection Programrequirements forvibration surveillances usingcontactprobessatisfactory fortrenddetermination.
This data will be taken monthly and observance of abnormal vibration or wear will initiate consideration of testing similar to that described in the subject letter.N.W.Curtis Vice President-Engineering 6 Construction-Nuclear CTC/mks}}
Thisdatawillbetakenmonthlyandobservance ofabnormalvibration orwearwillinitiateconsideration oftestingsimilartothatdescribed inthesubjectletter.N.W.CurtisVicePresident-Engineering 6Construction-Nuclear CTC/mks}}

Revision as of 03:20, 6 July 2018

Discusses long-term Operability of Deep Draft Pumps,In Response to NRC 810813 Ltr.Original Installation of Pumps Is Adequate.Pump & Valve Inservice Insp Program Requirements for Vibration Surveillances Are Satisfactory
ML18030A352
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 10/14/1981
From: CURTIS N W
PENNSYLVANIA POWER & LIGHT CO.
To: TEDESCO R L
Office of Nuclear Reactor Regulation
References
PLA-944, NUDOCS 8110160462
Download: ML18030A352 (4)
v • d • e


Text

R=GUL JRY ivFOR~ATrnV DISTRTBUTI SYSTEV (RIDSi ACCKSSIOV VSR:8110160462'OC

~DATKi: 81/10/14 VOTARIZEO:

NO FACILi:50-387 Susquehanna Steam Electr ic Stationi Unit 1, Pennsylve 50 398 Sgsquehannai Steam" Electric Stationi Unit 2P Pennsylva AUTHi.NA'41EI AUTHOR'F FILI.A l'"ION CURTIS'o 4~Pennsylvania.

Power E, Light'o.RECIP, VAM I RECAP IKV i'FF Il.I AT'IOV TEDESCOPR~Lt, Assistant Director fori Licensing 30CKKT'05000387 0.0 SUBJ=CT: Discusses'~1 ong.term ooer aoi 1 i ty of deco dr af t pum response.to NIiC 810813 1tr.Or igfnal installation adequate~Pump%valve iniservi ce inso or ogrami requ for vibrati on survei 1 1 ances ar ei sat i sfactor y~OISTRIS JTISN COOii: B021S'OPIES'EC=EVEO.LTR J,'NCL Q TITL=i"'ot respondcncei for Operating.

L Von Operating Facile 40TES:IWK,:3 ccodes FSARi 4 all amends.LPDR:2cys IB,K::3 conies FSARi 4 all amends.LPOR:2'ys ps p i n'f oumos i s ir ements SIZE".:~ty (ei,g.Vorth Ann 05090387 05000388 ACTION<ECIoIKNTiI COOK/IV AM"-I LI'R¹2'C 04 ST'ARK p RI, 05 COPIES LTTR E VCLi 1 i 1 RKC I P I EIVT.ID COOK/NAME L'IC BR¹2 LA COPTKS LTTR':NCL 1 INT'ERNAI 1 ACCORD 1VAL BABB CHEM EVG BRi 09'ORE PKRF BR 11 DIR'i LI CEVBING.EL', GK JSCIKN BRi 15 HU'4'A CiT'NG 8RI Ia"'YS BR 18 I E'/E P D Bl LIC GUID BR'NATL EVG.BR'0 MPA OP LIC 8RI POHERI SYS BR 21 QA SR 231 RE'AC SYS BRI 25, SIJTI ANAL.BRz 26 1.1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 AUX SY3 BR 08 CONT'YS BR 10 OIR'p HUM FAC S12'FF TR'YS BR13 EQUIP QUAl BR14'iUMACT'NG 16'YD'/GEO BR 17 ILE'7 IE/KPL8'iIC'QUAL BR'NlKCH KNG BR 20'VRR'/OS I'O/RS OR1 ASSESS BR.ROC/TST'EV 22'SSESS BR24 3 FI.Oi STRUCT KNG BR27 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 1 1 1 1 1 1 1 i 1 i EXlERNALc ACR8 LPOR 148'I C 29'3 0 61 16 6 1 FKMA~REP OIV VRC POR'2'4'T I S 1 1 1 1.1 OC~>0 c'I TOTAL,VUMBERi OF COPIES'EQUIRED!:

L~TTR ENCl, 5

Pennsylvania Power 8 Light Company Two North Ninth Street~Allentown, PA 18101~215/770.5151 Norman W.Curtis Vice President-Engineering

&Construction-Nuclear 21 5/770-5381 October 14, 1981 Mr.Robert L.Tedesco Assistant Director for Licensing Division of Licensing Office of Nuclear Reactor Regulation U.S.Nuclear Regulatory Commission Washington, D.C.20555 Docket Nos.50-387 50-388 SUSQUEHANNA STEAM ELECTRIC STATION LONG TERM OPERABILITY OF DEEP DRAFT PUMPS ER 100450 FILE 841-2 PLA-944

Dear Mr.Tedesco:

In response to the August 13, 1981 letter on the Long Term Operability of Deep Draft Pumps which divided the recommended actions into installation instructions and testing procedures, Pennsylvania Power and Light Company has reviewed the concerns raised and has reached the following conclusions.

The original installation of the deep draft pumps on site is deemed adequate.The procedures used for the installation are available onsite for IE Inspector review.These procedures ensured installation was within the manufacturers.

tolerances.

Further, these pumps have operated without incident, as described later in this letter.Pump removal and reinstallation for the sole purpose of verifying proper installation is unnecessary.

Deep draft pump assembly and disassembly maintenance procedures will be revised to include steps similar'to the recommended guidelines stated in the subject letter.However, optical alignment to assure maximum straightness and concentricity of the assembly is unnecessary.

Dial indication alignment checks will be performed.

Additionally, the pump-tomotor flange parallelism and shaft perpendicularity checks will be included.Construction of the sumps for the deep draft pumps has also been completed.

Pump testing has been performed to verify the absence of fluid anomalies, such as vortexing'r turbulance, in the suppression pool near, the Residual Heat Removal Pump intakes and the Core Spray Pump intakes., The three phase testing program proposed to ensure pump operability and to determine bearing wear trends is considered unadvisable at this time.This posture is based on the pumps having previously experienced a considerable

//Q number of operating hours without difficulty.

Further, the potential problems SiiOih0462 SiiOi4 PDR ADGCK 05000387.PDR Mr.Robert L.Tedesco Page 2'ctober 14, 1981 PLa-944 associated with repeated disassembly/reassembly outweigh the beneficial effects of such checks.PP&L considers the Pump and Valve Inservice Inspection Program requirements for vibration surveillances using contact probes satisfactory for trend determination.

This data will be taken monthly and observance of abnormal vibration or wear will initiate consideration of testing similar to that described in the subject letter.N.W.Curtis Vice President-Engineering 6 Construction-Nuclear CTC/mks

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