ML20198J636: Difference between revisions

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{{Adams
#REDIRECT [[LR-N970686, Forwards Supplemental Info Which Supports Request for Approval of Repair Plan for Core Spray Nozzle Weld through- Wall Leakage Identified on 970919]]
| number = ML20198J636
| issue date = 10/15/1997
| title = Forwards Supplemental Info Which Supports Request for Approval of Repair Plan for Core Spray Nozzle Weld through- Wall Leakage Identified on 970919
| author name = Storz L
| author affiliation = PUBLIC SERVICE ELECTRIC & GAS CO. OF NEW JERSEY
| addressee name =
| addressee affiliation = NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
| docket = 05000354
| license number =
| contact person =
| document report number = LR-N970686, NUDOCS 9710210217
| package number = ML20198J640
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE
| page count = 15
}}
 
=Text=
{{#Wiki_filter:. - _ - - _ _ - - _ _ _ _
i ec c      as Company Louis F, Stor:                                            Public Service EJectric and Gas Cocpany  P.O. Box 236. Hancocks Bridge. f4J 08038 009-339-5700 sencrvice Pr sonni uxiw opeavons LR-N970686 0CT 151997 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 SUPPLEMENTAL INFORMATION
            - CORE SPRAY NOZZLE WELD THROUGH WALL LEAKAGE HOPE CREEK GENERATING STATION FACILITY OPERATING LICENSE NPF-57 DOCKET NO 50-354 Gentlemen:
In Letter LR-N970667, dated October 9,1997, PSE&G submitted information related to l            the Core Spray nozzle weld through-wall leakage identified on September 19,1997 and requested approval of a repair plan for the associated weld. PSE&G is submitting the e
attached supplemental information to further support the request.
Attachment 4 to LR-N970667 contained PSE&G's commitments for performing additional examinations during the current refueling outage. Attachment 1 to this letter is a revision to the original information and is intended as a replacement for Attachment 4 to LR-N970667 dated October 9,1997 Attachment 1 includes the following:
: 1)        The repair history for each of the 20 Category "D" welds
: 2)          The weld procedures for each of the 20 Category "D" welds
: 3)          Susceptibility to IGSCC and Hydrogen Water Chemistry protection for each of the 20 Category "D" welds
: 4)          Conclusions relative to the acceptability of each of the remaining 19 Category "D" welds
: 5)          Additional exams planned for the current refueling outage Attachment 2 to this letter includes a copy of the welding procedure to be used in performing the repair, h'
t 9710210217 971015                                A ADOCK 050o gDR ll!!!!f!!!k!{!!k!!i!!I!!,! !!,!                  ,
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OCT 151997 Document Control Desk                      LR-N970686.
Attachment 3 includes information related to the repair plan that was submitted as Attachment 2 to IR N970667 dated October 9,1997.
- Should you have any questions regarding this information, we will be pleased to discuss them with you, i
Sincerely, V                          '
b/}
Attachment i
 
I OCT 151997 l l
l Document Control Desk        -              -  LR-N970686                                                              j
'C    Mr. H. Miller, Administrator - Region 1
      - U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Mr. D. Jaffe, Licensing Project Manager - HC U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mall Stop 14E21 Rockville, MD 20852 Mr. S. Morris (X24)                                                ,
USNRC Resident inspector - HC Mr. K. Tosch, Manager IV Bureau of Nuclear Engineering 33 Arctic Parkway Trenton, NJ 08625
 
ATTACHMENT 1 HOPE CREEK GENERATING STATION -
FACILITY OPERATING LICENSE NPF-57 DOCKET NO. 50-354 ADDITIONAL EXAMINATIONS Hope Creek has identified 20 welds classified as Category D, in accordance with
,    NRC Generic Letter 88-01. Our augmented inspection program requires examination of all 20 Category D welds on an every other refueling outage basis. Accordingly, all 20 welds were examined during the sixth refueling outage. No examinations were scheduled for the current refueling outage.
Following discovery of the through-wall leak on the Core Spray nozzle to safe-end weld; PSE&G requested that a full Code ultrasonic (UT) detection examination be performed to assist in the determination of the extent of the defect. Sizing techniques were invoked to characterize the defect.
Additionally, PSE&G requested our NDE vendor to re-evaluate the UT data from the sixth refueling outage for all the Category D welds. A review of the construction radiographs for those Category D welds replaced on-site during the 1982 safe-end replacement modifications was also performed. These reviews did not identify any flaws or suspect indications.
PSE&G has requested that EPRI provide an independent review of the sixth refueling outage mechanized UT data. EPRI NDE Center personnel evaluated this data and the results are shown on the attached matrix.
A review of the sample expansion criteria found within the referenced documents was performed. No specific requirements for sample expansion of Category D welds could be found within NUREG 0313, Rev. 2. - As there were no scheduled examinations for the current refueling outage, the ' Additional Examination' requirements of ASME Section XI (1983 Edition, including Addenda through Summer 1983), Para. IWB-2430 (a) do not clearly apply.
However, due to the significance of a through-wall reactor coolant system leak, PSE&G will examine additional welds of a similar nature during the current refueling outage. Using the guidance from Section XI, and given that one examination was performed during this refueling outage for this category, one additional weld would be' required to be examined.
Page 1 of 2
 
  = - - -          -          .                -    - -.                              ..    - .-
Att:chment 1                                                              LR-N970686 Addition:l Examin:ti:ns Using the guidance from NUREG-0313, Rev. 2, considerable effort was given toward the determination of a technicaljustification for selection of a specific inspection sample distribution. Reviews were performed on safe-end replacement modification records (for example; weld process, filler materials, repair areas, NDE results, etc.), operating history of the unit for cold water injections, and effects of Reactor Coolant chemistry control efforts and
.          transients. See attached matrix.
Based on the above, six welds were selected for examination. These examinations will be performed in accordance with a procedure and personnel qualified in accordance with the requirements of ASME Section XI, Appendix Vill,1992 Edition with 1993 Addenda as modified by the Performance Demonstration Initiative (PDI) document 'PDI Program Description'; currently Revision 1, Change 1. These requirements are being incorporated as an alternative (IWA-2240) to those requirements of the current ISI Program which complies with the 1983 Edition, including Summer 1983 Addenda of Section XI.
,          The additional welds are:
,          1.      The NSA Core Spray nozzle to safe-end weld was selected because its operational environment is similar to that of the NSB nozzle. Although no repairs were performed and the filler material is Inconel 82; this nozzle is the other Core Spray nozzle located at the same Reactor Vessel
,                elevation, and is not protected by hydrogen water chemistry.
: 2.      The N2J recirculation inlet nozzle to safe-end weld was selected because of its technical characteristics being quite similar to those of the NSB
;                  nozzle weld. The review of 1995 UT data from N2J identified indications near the detection threshold in the area of repairs which would require further investigation. Also, the weld contained repairs made during the safe-end replacement in 1982, the filler metal used was inconel 182.
: 3.      There are 4 nozzles that received manual examinations; N8A, N88, N9, and N6A. Manual examination results are documented on Data Sheets.
This information is limited to only the information recorded and a thorough evaluation of previous examinations is not possible. Therefore, current
                  - ultrasonic examinations will provide additional confidence in identifying the extent, if any, of lGSCC.
Page 2 of 2
 
  - . ,    m            -        _          ..
ROOT CAUSE EVALUATIONS 1
HOPE CREEK CATEGORY "D" WELDS LR-N970686 ATTACHMENT 1 COMP.ID      NOZZLE        PIPE  NOZZLE      BUTTER    ROOT WELD      FILL WELD    WPS-7D      WPS-2D    'SUSCEPDBLE HWC          NUMBER OF DESCRIPTION SIZE    ELEVATION MATERIAL FILLER            FILLER        INSERT      (GTAW +    MATERIAL  (AS OF 2/93) IN-PROCESS
[UPWArtD] + SMAW)                              REPAIRS ORBITAL    [ UPWARD]
(GTAW)
RPV1-N1ASE    Recirc Oudet  28"    128'8.5"    INCO 182  see comments  see comments                        YES        PROTECTED    see comments RPV1-N1BSE    Recirc Outlet 28"    128'8 5-    INCO 182  see comments  see w.. mats                        YES        PROTECTED    see comments RPV1-N2ASE-30 Recirc inlet  12"    130'4"      INCO 182  GTAW INCO 82  GTAW INCO 82  X.                    YES        PROTECTED    0 RPV1-N28SE-60 Rectre intet  12"    130'4"      INCO 182  GTAW INCO 82  SMAW INCO 182 X          T          YES        PROTECTED    1 RPV1-N2CSE-90 Recirc Inlet  12"    130'4"      INCO 182  GTAW INCO 82  GTAW INCO 82  X                      YES        PROTECTED    0 RPV1-N2DSE-12 Recirc Inlet  12"    130'4"      INCO 182  GTAW INCO 82  SMAW INCO 182 X          X        YES        PROTECIED    3 RPV1-N2ESE-15 Rectre inlet  12"    130'4"      INCO 182  GTAW INCO 82  GTAW INCO 82  X          X        YES        PROTECTED    1 SMAW repair i
RPV1-N2FSE-21 Recirc Inlet  12"    130'4"      INCO 182  GTAW INCO 82  GTAW INCO 82  X                    YES        PROTECTED    0                ,
1 i
1 Table Page 1                                                                  -
i
 
ROOT CAUSE EVALUATIONS HOPE CREEK CATEGORY "D" WELDS                                        .
LR-N970686 ATTACHMENT 1 COMP.ID        NOZZLE        PIPE NOZZLE    BUTTER    ROOT WELD    FELL WELD    WPS-7D      WPS-2D    SUSCEPTIBLE HWC          NUMBER OF DESCRIPTION SIZE    ELEVATION  MATERIAL  FILLER        FILLER        INSERT      (GTAW +  MATERIAL    (AS OF 2/93) IN-PROCESS
[ UPWARD] + SMAW)                              REPAIRS ORBITAL    [ UPWARD]
(GTAW)
RPV1-N2GSE-24 RectrC inlet    12-  130'4'    INCO 182  GTAW INCO 82  GTAW INCO 82  X                    YES        PROTLCTED    0 RPV1-N2 HSE-27 Recirc Inlet    12-  130'4'    !NCO 182  GTAW INCO 82  GTAW INCO 82  X          X        YES        PROTECTED    1 SMAW repasr RPV1-N2JSE-30 Recirc Inlet    12'  137 4"    INCO 182  GTAW INCO 82  SMAW INCO 182 X          X        YES        PROTECTED    1 RPV1-N2KSE-33 Rectre inlet    12"  130'4'    INCO 182  GTAW INCO 82  GTAW INCO 82 X                      YES        PROTECTED    0
. RPV1-N5ASE-12 Core Spray      10"  155'7.5"  INCO 1ts2  GTAW INCO 82  GTAW INCO 82  X                    YES        UNPROTECTED 0 RPV1-NSASEX    Core Spray    10"  155'7.5"  INCO 182  see comments  see comments                        YES        UNPROTECTED see comments Extension                                                                                                                            ;
i RPV1-NSBSE-24 Core Spray      10'  155'7.5"  INCO 182  GTAW INCO 82  SMAW INCO 182 X          X        YES        UNPROIECTED 9 i
RPV1-N5BSEX    Core Spray    10~  155'7.5"  INCO 182  see comments  see comments                        YES        UNPROTECTED see comments  ;
Extension                                                                                                                          t i
RPV1-NBASE    Jetpump        4'    127*11"  INCO 182  see comments  see comments                        YES        UNPROTECTED see comments Instrument hne i
Table Page 2 L
                                                                                                                                                    )
 
ROOT CAUSE EVALUATIONS                                                                                                ,
HOPE CREEK CATEGORY "D" WELDS LR-N970686 ATTACHMENT 1 t
COMP.ID    NOZZLE        PIPE NOZZLE      BUTTER    ROOT WELD      FILL WELD      WPS-7D        WPS-2D        SUSCEPTIBLE HWC            NUMBER OF DESCRIPTION SIZE    ELEVATION MATERIAL FILLER            FILLER        INSERT        (GTAW +      MATERIAL    (AS OF 2/93)  IN-PROCESS
[ UPWARD] +  SMAW)                                  REPAIRS ORBITAL      [ UPWARD]
(GTAW)
RPV1-NBBSE  Jetpump        4'  127'11"    INCO 182  see comments
                                                                                ^
see wi. ..er.6                            YES        UNPROTECTED see w....e.s Instrumere hne RPV1-N9SE-1 CRD Retum kne  4'  152'7 5"    INCO 182  GTAW INCO 62  SMAW INCO 182                              YES        UNPROTECTED see comments (capped)
RFV1-N6ASE  RHR Head Spray
                                                                                ^
6'  TOP OF HEAD INCO 182  see comments  see w.. w..d                              YES        UNPROTECTED see comments WPS = Weld Proceoure Specification I
Table Page 3
 
ROOT CAUSE EVALUATIONS HOPE CREEK CATEGORY "D" WELDS LR-N970686 ATTACHMENT 1 1980-1982      1997    1989      1992        1995    1997        1997        1997    1997          1997    1997      1997 COMP.ID        NOZZLE        FINAL RT      PSE&G RT 1989 UT    1992 UT    1995 UT 1997          1989 UT      1992 UT  1992 UT EPRI 1995 UT 1995 UT 1997 UT DESCRIPTION ACCEPTED        FILM    Southwest GE          GE        " manual" Southwest      GE      review        GE      Final GE GE w/ INDICATION REVIEW    Original  Original  Original GE UT        Review -    Review                initial  Review Results Results                                        Review RPV1-N1ASE    Rectre Outlet see comments  see      CLEAN      CLEAN      CLEAN    n/a        n/a          n/a      n/a            n/a    CLEAN      n/a comments RPV1-N1BSE    Rectre Outlet see comments  see      CLEAN      CLEAN      CLEAN    n/a        n/a          n/a      n/a          n/a      CLEAN    n/a Comments                                                                                                          ,
RPV1-N2ASE-30 Reorc iclet    POROSITY /    ACCEPT  CLEAN      CLEAN      CLEAN    n/a        n/a          n/a      n/a          n/a      CLEAN    n/a SLAG RPV I-N2BSE-60 Reore tnlet  POROSITY /    ACCEPT  CLEAN      CLEAN      CODE    n/a        n/a          n/a      n/a          n/a      CODE      n/a    ,
SLAG                                                                                                                            '
RPV1-N2CSE-90 Rearc inlet    POROSITY      ACCEpi  CLEAN      CLEAN      CLEAN    n/a                      n/a      n/a          n/a      CLEAN    n/a gn/a RPVI-N2DSE-12 Recrc inlet    POROSITY      ACCEPT  CLEAN      CLEAN      CLEAN    n/a        n/a          n/a      n/a          n/a      CLEAN    n/a RPV1-N2ESE-15 Rearc inlet    POROSITY      ACCEPT  CLEAN      CLEAN      CLEAN    n/a        n/a          n/a      n/a          n/a      CLEAN    n/a i
RPV1-N2FSE-21 Recrc inlet    POROSITY      ACCEPT  CLEAN      CLEAN      CLEAN    n/a        n/a          n/a      n/a          n/a      CLEAN    n/a Table Page 4
 
8 TOOT CAUSE EVALUATIONS HOPE CREEK CATEGORY "D" WELDS LR-N970686                                                                                                1 ATTACHMENT 1 COMP.ID            NOZZLE          FINAL RT        PSE&G RT 1989 UT        1992 UT    1995 UT 1997        1989 UT  1992 UT      1992 UT EPRI 1995 UT 1995 UT        1997 UT DESCRIPTION ACCEPTED            FILM        Southwest GE            GE'      " manual" Southwest GE            review        GE'      Rnal GE GE w/ INDICATION REVIEW        Original    Original    Original GE UT      Review    Rev'ww                      initial  Review Results Results                                          Review RPV1-N2GSE-24 Reorc in!et        SLAG            ACCEPT      CLEAN      CLEAN      CLEAN    n/a        rua      n/a          n/a          n/a      CLEAN        n/a RPV1-N2 HSE-27 Recirc Intet      NO              ACCEPT      CLEAN      CLEAN      CLEAN      n/a        n/a      n/a          n/a            n/a      CLEAN      n/a INDICATIONS RPV1-N2JSE-30 Reorc intet        POROSITY        ACCEPT      CLEAN      CLEAN      CLEAN    n/a        rua      n/a          n/a            n/a      CLEAN      n/a RPV1-N2KSE-33 Recre Intet        POROSITY /SLA  ACCEPT      CLEAN      CLEAN      CLEAN    n/a        n/a      n/a          n/a          n/a      CLEAN        n/a G                                                                                                                                                            ,
t RPV1-NSASE-12 Core Spray          POROSITY /N22  ACCEPT      CLEAN      CLEAN      CLEAN    n/a        n/a      n/a          CLEAN        n/a      CLEAN        n/a R+N1800T CONCAVITY RPV1-N5ASEX      Core Spray      see cornments  see          CLEAN      CLEAN      CLEAN    n/a        n/a      n/a          CLEAN        n/a      CLEAN      n/a Extension                      comments
* RPV1-N5BSE-24 Core Spray          SLAG            Reject - LOS CLEAN      CLEAN      CLEAN    CLEAN      CLEAN    CLEAN        000TIONAl:LE CLEAN    Reject -    Reject -                  r IGSCC      IGSCC RPV1-N5BSEX      Core Spray      see comments    see          CLEAN      CLEAN      CLEAN    n/a        n/a      n/a          CLEAN        n/a      CLEAN      n/a Extension                      comrnents                                                                                                                                    l RPV1M8ASE        Jetpump        see comments    see          CLEAN      CLEAN      CLEAN    n/a        n/a      n/a          n/a          n/a      see        n/a                        l Instrument line                comments                                                                                                comments Table Page S
 
^
ROOT CAUSE EVALUATIONS HOPE CREEK CA TEGORY "D" WELDS                                                                                      -
LR-N970686 ATTACHMENT 1 COMP.ID    NOZZLE          FINAL RT    PSE&G RT 1989 UT            1992 UT        1995 UT 1997          1989 UT          1992 UT 1992 UT EPRI 1995 UT 1995 UT    1997 UT DESCRIPTION ACCEPTED        FILM        Southwest GE                  GE          "manuar Southwest GE              review      GE        Final GE GE w/lNDICATION REVIEW      Original        Original      Original GE UT        Review          Review                initial - Review Results Results                                        Review RPVI-N8BSE  Jetpump        see comments see        CLEAN          rm            CLEAN        n/a      n/a            n/a      n/a          n/a      see      n/a instrument line              comments                                                                                                        ~..-.t.
RPV1-N9SE-1 CRD Retum hne  POROSITY -  ACCEPT      CLEAN          CLEAN        CLEAN        n/a      n/a              rt's    n/a          n/a      see      n/a (capped)        UNDERCUT                                                                                                                      comments RPV1-N6ASE  RHR Head Spray see comments  see        CLEAN          CLEAN        CLEAN      n/a      n/a              n/a      n/a          n/a      see      n/a comments                                                                                                        comments CLEAN = NO flaw mdcatons CODE = Acceptable flew in carbon steel rezzle (forgeng flap)
OUESTIONABLE = Contains ultrasonic indcatons at or near threshold of detectabildy l
l r
Table Page 6 i
 
ROOT CAUSE EVALUATIONS HOPE CREEK CATEGORY "D" WELDS LR-N970686 ATTACHMENT 1 1
1997    1997                                                                                                                                                                  .
1 FOMP.ID        NOZZLE          1997 UT 1995 UT    COMMENTS                                                      CONCLUSIONS                                                                                  '
DESCRIPTION EPRI        EPRI Review independent                                                                                                                                                            ;
I Review n/a      CLEAN      No record of Safe-end replacements at                        We*** m'ommeo 01 cans prome reymmen m RPV1-NIASE    Rectre Outlet g,                                                            saetarwme em aesence or no. n me .e=1 Re.w.s acre corusucsed by GE, PSE&G, wws EPRI NDE carew to mnfrm ew absenes or UT oges sender to rose observed sn NSBSE RPV1-N1BSE    Recirc Outlet  n/a      CLEAN      No record of Safe-end replacements at                        We'a* *8ammea u t e==,= proves rearmem e mestanew em atmence er es a ew as Rev
                                                      '#8                                                          .ere cmduczed ty GE, PSE&G sus EPRI fuDE career to confrm em speence or UT swyws sender to those neeervee on No8SE RPV1-N2ASE-30 Rectre inlet    n/a      CLEAN                                                                  Weram maammea ut exams proven rearmarm =                = maane censinnon
                                                                                                                  .es.mnwe tw steence or ns.s e e ased pens                e suppen m ut resuas were conducwd ty GE. PSE&G. and EPRf NDE conrw e enrrm ew absenos er UT sywa erneur to emos ceservee on NSBSE W. cus maammea vi .=ams provee reo rmmen s              n amen mnen,xn RPV1-N2BSE-60 Recirc inlet    n/a    CODE subenew the atmmco ce %.s et tNs ki Raw                  6 mepert ew UT reeufs
                                                                                                                  . ore conessed ty GE, PSE&G and EPRf NDE certer to g
wrwm tw absence or ur news sendar to emee et,eervee on N58SE RPV1-N2CSE-90 Recirc inlet    n/a      CLEA*t                                                                  * =a rsommea vi =was provee nro mmm io                  n emm enenaan suecanew ew steence orn      mens *d Reww
* e support to UT reeues were ennaweted ty GE PSE&G and EPRI NDE cenwr to ardrm te absence of UT syws sender e twee eteerwee ionN58SE RPV1-N2DSE-12 Recirc Inlet    n/a      CLEAN                                                                    Weveus maameea ut e ams proves nearmarmio              n esacen. ecesowaan mestanare se abeerwm cf fis.s ri rue .edd Reww.s        -seographs meport tw UT resuas were corthcsod by GE. PSE&G. wws EPRf NDE corner to oc=vm em atrJance of UT spels sandar to these otnoorvec m NSBSE RPV1-N2ESE-15 Recare inlet    n/a      CLEAN                                                                  Wevous a8or%e u r ==ams provee rearmmon =                n esseen. conannon ouestannte to obsente d fle.s em ens .eNf Re e.s          adegraphe memort ew UT *ssums more conducted ty GE. PSERG. and EPRI NDE certer to unrrm the aosence of ur sgnes sensar toihose absorve on N*.8SE RPV1-N2F SE-21 Rectre Intet  n/a      CLEAN                                                                  * **us ado ***a u r == ens proves nearmem m              n saarrm conanoon ee.mm.ew .e ence or no.* n              s Re          wachs .uppare ine ur re.u=*
                                                                                                                  .or. mneucwd e rGE. PSE&G end EM NOE cenwr e enerm a steence or uf .gwe nn.iar e inose eeser.ee m NSBSE Table Page 7 l
                                                                                                                                                                                        = _ _ -        - _ _ - _
 
ROOT CAUSE EVALUATIONS HOPC CREEK CATEGORY "D" WELDS LR-N970686 ATTACHMENT 1 COMP. ID -      NOZZLE          1997 UT 1995 UT        COMMENTS                                  CONCLUSIONS DESCRIPTION EPRI        EPRI Review independent Review RPV1 N2GSE-24 Recare Intet    n/a      CLEAN                                                  Frewmus mAammed ul exams prowne rearmete to            m entet annerm.aon anestarese the accence of fl a mihis eed Revens        6 sipport the UT results
                                                                                                  .ers omducted by GE P$EEG and EPRI NDE career to curfum ew absorts or UT syws sender to those eteervoa m fe58SE RPV1-N2 HSE 27 Recus inlet    n/a      CLEAN                                                  Pr**'ous ado ***e ut mams provee rearm aun se          n act eat conewucre sieses,mm the steence er to.s e eus weed Revues        6 se the UT essues were conducled by CE. PSE&G and EPfU NDE conter to contem en annonce at UT eyes senmar m those ateervee a NS85E RPV1-N2JSE-30 Recare inlet    n/a      QUESTlONABL                                            wa m uI row                  . meng sn ku. te2 tuer E                                                      *****"'''U'''***'"**
RPV1-N2KSE-33 Recare inlet    n/a      CLEAN                                                  Prevous a:aommee ut asms provee =*y wien e              m m cmewinzem ametanee em somence er news e e=s ems Reve.s            <admgracru sw we ut me
                                                                                                .gro conexsed by GE. PSE&G ard EPRt NDE corner as e e. steerm a UT sews senaar to eene eteervee m N58SE RPV1-N5ASE-12 Core Spray      n/a      CLEAN                                                  **rauga no repar* *** peorme we ew '*m mmme
                                                                                                .ma was eco a2, Nss., s e some waramas en es.wnere and elevaten rs NSB. endspel UT repechor s recured RPV1-NSASEX    Core Spray      n/a      CLEAN        No record of Safe-end replacements at    P*'ous *nomsma ut emens proven rearmeen e
                                                                                                ''***''"'''''"*"'*d""*'''***'d "*****
Extension                              site                                    . ore cowsxsed by GE. PSEEG. and EPRt NDE conier to cartem em steers er uT s ,yws sendar to vs.ae eneen.a m wesE RPV1-N583SE-24 Core Spray      Reject - Reject -IGSCC                                          escc inwo-nau. cwx ReeAte Rwumto IGSCC RPVI-NSBSEX    Core Spray      n/a      CLEAN        No record of Safe-end replacements at  Pravon asommea ul marns prevne rearmem m Extension                              site
                                                                                                .ere cor4Jcted by GE. PSESG, arid EPRf NDE mnser to
                                                                                                '2irdam the at orre of UT segres sensar to bese coservec on NCasE RPVI-N8ASE    Jetpump        n/a      see comments Manual UT examination. Data sheets      Om e nsi cl W) WAR 1" ome t rovew amnem ul Instrument line                                                                          "'**"**
st.ow NO flaw indications. No record of Safe +rv.! replacements at site Table Page 8
 
ROOT CAUSE EVALUATIONS HOPE CREEK CATEGORY "D" WELDS LR-N970606 ATTACHMENT 1 comp.lD    NOZZLE          1997 UT 1995 UT      COMMENTS                                CONCLUSIONS DESCRIPTION EPRI        EPRI Review independent Review RPV2-NABSE  Jetpump        n/a    see comments Manual UT examination Data sheets      vuo n sum a ss waa r nem e ==. awx,w ui instrument line                                                              ' ' ' ' ' ' " "
* show NO ftsw indications. No record of Safe <md replacements at site RPV1-N9SE-1 CRD Retum line  n/a    see comments Manual UT examinaten. Data sheets      uus e u a vs mr ama m              . monnons ut (capped)                            show NO flaw indications                '"'''*""***"**
l RPU1-N6ASE  RHR Heaa Spray nra      see comments Manual UT examinaten. Data sheets      uu.= m a e er ama w              . maaarm vi I
show NO flaw Mcatens. No record o' " " ' * ' " * * * " *
* l                                                  Safe-rM replacements at site i
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ATTACHMENT 2 HOPE CREEK GENERATING STATION FACILITY OPERATING LICENSE NPF-57 DOCKET NO. 50-354 WELD PROCEDURE 1
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