ET 06-0055, Results of Ultrasonic Examinations of the Full Structural Weld Overlays on Pressurizer Nozzle Welds
| ML063330060 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 11/17/2006 |
| From: | Garrett T Wolf Creek |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| ET 06-0055 | |
| Download: ML063330060 (58) | |
Text
WCREEK
'NUCLEAR OPERATING CORPORATION Terry J. Garrett November 17, 2006 Vice President, Engineering ET 06-0055 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555
Reference:
- 1)
Letter ET 06-0044, dated October 2, 2006, from T. J. Garrett, WCNOC, to USNRC
- 2)
Letter ET 06-0042, dated September 27, 2006, from T. J.
- 3)
Letter ET 06-0031, dated August 4, 2006, from T. J. Garrett, WCNOC, to USNRC
- 4)
Letter ET 06-0021, dated May 19, 2006, from T. J. Garrett, WCNOC, to USNRC
Subject:
Docket No. 50-482: Results of the Ultrasonic Examinations of the Full Structural Weld Overlays on the Pressurizer Nozzle Welds Gentlemen:
During Refueling Outage 15, Wolf Creek Nuclear Operating Corporation (WCNOC) performed full structural weld overlays on the Wolf Creek Generating Station (WCGS) Pressurizer safety, relief, spray and surge line nozzle welds. This submittal provides the results of the ultrasonic examinations of the full structural weld overlays on the Pressurizer nozzle welds as committed to in Reference 1.
Reference 4 provided Wolf Creek Nuclear Operating Corporation (WCNOC) 10 CFR 50.55a Request 13R-05, which requested alternatives to the requirements of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (BPV) Code,Section XI for the installation and examination of full structural weld overlays for repairing/mitigating Pressurizer nozzle-to-safe end dissimilar metal (DM) and safe end-to-piping stainless steel (SS) butt welds.
Reference 3 provided WCNOC's responses to a July 6, 2006 Nuclear Regulatory Commission (NRC) request for additional information (RAI) regarding the WCNOC 10 CFR 50.55a Request 13R-05 and provided Revision 1 to 13R-05 to address two WCNOC responses to the RAI.
P.O. Box 411 / Burlington, KS 66839 / Phone: (620) 364-8831 An Equal Opportunity Employer M/FIHCNET
ET 06-0055 Page 2 Reference 2 provided WCNOC's responses to RAIs provided electronically on September 20, 2006.
Reference 1 revised the regulatory commitments to include information relevant to subsequent inservice examinations and footnotes that reiterate information found in the Performance Demonstration Initiative qualified ultrasonic examination procedures.
This letter contains no commitments. If you have any questions concerning this matter, please contact me at (620) 364-4084, or Mr. Kevin Moles at (620) 364-4126.
Very truly ypors, Terry J. Garrett TJG/rlt Attachment
Enclosures:
II -
III -
IV-V -
Relief Nozzle Indication Evaluation "C" Safety Nozzle Pre-Repair Indication Evaluation "C" Safety Nozzle Post-Repair Indication Evaluation Spray Nozzle Pre-Repair Indication Evaluation Spray Nozzle Post-Repair Indication Evaluation cc:
J. N. Donohew (NRC); w/a, w/e B. S. Mallett (NRC); w/a, w/e G. B. Miller (NRC); w/a, wie Senior Resident Inspector (NRC); w/a, w/e
Attachment to ET 06-0055 Page 1 of 1 Results of Ultrasonic Examinations of Full Structural Weld Overlays of the Wolf Creek Generating Station Pressurizer Nozzle Welds The results of the ultrasonic (UT) examinations of the weld overlays of the Wolf Creek Generating Station (WCGS) Pressurizer nozzle welds and related repairs are provided below and in the noted enclosures.
Surge nozzle weld overlay and "A" and "B" safety nozzle weld overlays.
No recordable indications were identified. However, prior to final examinations, an in-process excavation and repair was performed on an upper portion of the surge nozzle weld overlay due to machine welding travel speed adjustment problems. No repairs were performed on the "A" safety and "B" safety nozzle weld overlays.
Relief nozzle weld overlay.
Two recordable indications (one laminar and one planar) were identified and were acceptable.
See Enclosure I for the evaluation/disposition of the indications. No repairs were performed on the weld overlay.
"C" Safety nozzle weld overlay. Two recordable indications (one laminar and one planar) were identified. See Enclosure II for the evaluation/disposition of the indications. As documented in Enclosure II, indication #2 (planar indication) was unacceptable per Table IWB-3514-2, requiring repair. This repair was performed by excavating the unacceptable indication.
In the process of removing the unacceptable planar indication, the laminar indication was also removed. The excavated area was repaired by welding. The repair area was reexamined and one recordable (but acceptable) indication (laminar) was found in this area. See Enclosure III for the evaluation/disposition of this acceptable indication Spray nozzle weld overlay. An in-process repair was performed on the first layer of the Spray nozzle weld overlay prior to installing the subsequent weld layers due to lack of bond indications. This resulted in removal of some base metal and reinstallation of the first layer of weld overlay. After completion of welding, an informational UT exam was conducted during the ASME Code Case N-638-1 required 48 hour5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> hold time.
Two recordable indications (both laminar) were identified.
See Enclosure IV for the evaluation/disposition of the indications.
Indication #1 location, as shown in Enclosure IV, is actually at the base metal to weld overlay interface after performing the in-process repair of the first layer, as discussed above. As documented in Enclosure IV, indication #2 was unacceptable per Table IWB-3514-3, requiring repair. The unacceptable indication was excavated and repaired by welding. After repair, the final UT examinations of the required volumes were performed.
One recordable indication (laminar) was found and was acceptable. See Enclosure V for the evaluation/disposition of this indication.
All of the laminar indications noted above appear to be the result of a lack of bond indications between the base metal and the overlay. All of the planar indications noted above appear to be the result of inter-bead lack of fusion indications stacking up on the weld beads. No flaws were found in base materials that required repair.
Enclosure I to ET 06-0055 ENCLOSURE I RELIEF NOZZLE INDICATION EVALUATION
Evalul' Number:
Wolf Creek PORV Nozzle WC-UT-003 Pa9d1Wbf 10 Page 1 of 10 FLAW INDICATION EVALUATION
SUMMARY
FOR:
PORV NOZZLE Y
Appendix Q Criteria Acceptance Standard Summary of Results Evaluation: Laminar Flaw Indications ASME Section XI, 1998 ACCEPTABLE CONDITION: The single laminar flaw Edition 2000 Addenda, Table indication is acceptable with an area of 1.5 sq. in. compared
[Ref. 9.1 of Evaluation Worksheet]
IWB-3514-3 with the 7.5 sq. in. allowable.
Evaluation: Reduction In Coverage in ACCEPTABLE CONDITION: For the SS weld examination Volume DuBase to teria Lxaminarion Faecovolume, the reduction in coverage (RiC) for circumferential Volume Due to Laminar Flaw 10% Reduction in Coverage beams is 0.8%, and the RiC for axial beams is 1.41%. For Indications [Ref. 9.2 of Evaluation the DM weld examination volume, there is no RiC.
Worksheet]
Evaluation: Consideration of the Evalatio: Cosidratin oftheACCEPTABLE CONDITION: The assumed axial planar flaw Largest Radial Planar Flaw (Axial and ASME Section XI, 1998 ACe C
T thassue axial ana flaw Circumferential) That Could Exist in Edition 2000 Addenda, Table Any Uninspectable Volume Within the IWB-3514-2 Inservice versus the allowable a/t of 12.8%. The assumed circumferential planar flaw due to the laminar flaw indication Weld Overlay Examination Volume [Ref.
Examination Standards hsa culato.%vru h
loal
/ f1.%
9.3 f Ealutio Wokshet]has an actual aft of 6.2% versus the allowable a/t of 17.1.
9.3 of Evaluation Worksheet]
Evaluation: Planar Flaw Indications in ASME Section XI, 1998 PSIIISl Base Material and Weld Overlay Edition 2000 Addenda, Table ACCEPTABLE CONDITION: The single planar flaw Examination Volumes [Ref. 9.4 of IWB-3514-2 Preservice indication has no measurable through-wall dimension.
Evaluation Worksheet]
Examination Standards Evaluation: Flaw Indications in PSIII/l Base Material Examination Volume and ACCEPTABLE CONDITION: No planar flaw indications were Within Outer 25% of Underlying Weld Design Requirements of the detected in the outer 25% of the underlying weld and base and Base Metal Must Satisfy Design Weld Overlay metal.
Requirements of the Weld Overlay
[Ref. 9.5 of Evaluation Worksheet]
EvaluatRIumber:
Wolf Creek PORV Nozzle WC-UT-003 PageWl10 Page 2 of 10 Preparer:
Date:
Oct. 26, 2006 WesDyne Level III Review:
-7, Date:
/0, ATTACHED FLAW INDICATION EVALUATION SHEETS:
Evaluation Indication Plots Reduction In Coverage Plots Assumed Planar Flaw Plots Layout of Indications
FLAW INOICATION EVALUATION' SECTION XM, APPENDIX 0 14pWS o ISe Page 3 of 10 FLAW INDICATION PLOTS DESCRIBING THE LOCATION AND MEASURED DIMENSIONS OF THE FLAW INDICATIONS ARE ATTACHED.
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FLAW INDIC*ON PLOTS Evallud*M Number:
Wolf Creek PORV Nozzle WC-UT-003 Palf 10 Page 6 of 10
Evalu Report:
Wolf Creek PORV Nozzle WC-UT-003 REDUCTION IN Ct PLOTS Padowbf 10 Page 7 of 20 R4.24-
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EvalIu Report:
Wolf Creek PORV Nozzle WC-UT-003 REDUCTION IN (
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EvaluMM Report:
Wolf Creek PORV Nozzle WC-UT-003 ASSUMED LARGEST PLANAR FLAW UNINSPECTABLE VOLUME PLOTS 10 Page 9 of 10 Wolf Croek PORV Nozzle 2700 Profile Weld Ong".
T4 0.10 Asaumed ClrumemflntJal Planar Flaw du. to Laminar Flaw Indication 01
LAYOUT OF DICATIONS EvalulM Number:
Wolf Creek PORV Nozzle WC-UT-003 Page~wof 10 Page i0 of 20
Enclosure II to ET 06-0055 ENCLOSURE II "C" SAFETY NOZZLE PRE-REPAIR INDICATION EVALUATION
EvaluOMlNumber:
Wolf Creek Safety Nozzle C WC-UT-001 Pagilm 10 Page 1 of 10 FLAW INDICATION EVALUATION
SUMMARY
FOR:
WOLF CREEK SAFETY NOZZLE C Appendix Q Criteria Acceptance Standard Summary of Results Evaluation: Laminar Flaw Indications ASME Section XI, 1998 ACCEPTABLE CONDITION: The single laminar flaw Edition 2000 Addenda, Table indication is acceptable with an area of 3.4 sq. in. versus the
[Ref. 9.1 of Evaluation Worksheet IWB-3514-3 allowable of 7.5 sq. in.
Evaluation: Reduction in Coverage In ACCEPTABLE CONDITION: For the DM Weld, the the PSI/ISI Base Material Examination reduction in coverage (RiC) due to the laminar flaw Volume Due to Laminar Flaw
<10% Reduction in Coverage indication for axial beams is 1.18%; the RiC for Indications [Ref. 9.2 of Evaluation circumferential beams is 0.94%. For the SS Weld, there is Worksheet]
no RiC due to laminar flaw indications..
Evaluation: Consideration of the Largest Radial Planar Flaw (Axial and ASME Section XI, 1998 ACCEPTABLE CONDITION: The laminar flaw indication lies Circumferential) That Could Exist in Edition 2000 Addenda, Table primarily at the weld oveday/base metal interface. A planar Any Uninspectable Volume Within the IWB-3514-2 Inservice flaw indication has been detected at same location as Weld Overlay Examination Volume [Ref.
Examination Standards laminar flaw indication.
9.3 of Evaluation Worksheet]
Evaluation: Planar Flaw Indications in ASME Section XI, 1998 PSIISl Base Material and Weld Overlay Edition 2000 Addenda, Table Examination Volumes [Ref. 9.4 of IWB-3514-2 Preservice Evaluation Worksheet]
Examination Standards Evaluation: Flaw indications In PSI/ISI Base Material Examination Volume and ACCEPTABLE CONDITION: No planar flaw indications were Within Outer 25% of Underlying Weld Design Requirements of the detected in the outer 25% of the underlying weld and base and Base Metal Must Satisfy Design Weld Overlay metal.
Requirements of the Weld Overlay
[Ref. 9.5 of Evaluation Worksheet]
EvaludWm11Number:
Wolf Creek Safety Nozzle C WC-UT-O01 PageW10 Page 2 of 10 Preparer:
Date:
WesDyne Level III Review:
Rick Rishel 27-Oct-2006 Norm Siniaho Date:
ATTACHED FLAW INDICATION EVALUATION SHEETS:
Evaluation Indication Plots Reduction In Coverage Plots Assumed Planar Flaw Plots Layout of Indications
FLAW INDICATION EVALUATION T(,DE SECTIONXI, APPENDIX a
- 0.
At1 Page 3 of 10 FLAW INDICATION PLOTS DESCRIBING THE LOCATION AND MEASURED DMENSION OF THE FLAW INDICATIONS AME ATTACHED.
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Page 4 of 10 COVIRAUM ISTMATI AMUMPIION: P1 vobegie nfAta be ewomd In im e ukbla twee cOlimedi Meclome to ob, lai heIn coveraog.0 i
(
.POWT.
Pem U.); No
- eg*
e Tom Bmsm Teed mc We.A. (be')
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IN ownsmi Pme'11 of6 P o
vsee NWIND-O*
S l(ed W01110l aooini 4m0 km obasoa*
"A H8 Sam AN ATMU Pinidgd iKE~I~e e~mHe d(U~mi Me~ dpU~nimeoan6 an t.15 4010FIVA TOWIX vamtst'I Rc vesie
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Sn"sd*SM85 55 Y
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m OSIfn*ism kmmwm*
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Aeep pu*eN.e m
be kga SeU(wbern aemmlibemaa;gu~ Na keg.*
g mw mim A*i-* be awb~me.'W gemonaaSmabe be i a b.woke
- 6 Tol 4S14.L kmoqD-,waM pmamaS Uwo bb nUa5 P,. App-auia, G" I ONa LAMINAR FLAW INDICATION 91 LIES AT WELD OVERLAYIIASIE METAL INTERFACE.
A PLANAR FLAW INDICATION (IND. 2) HAS SEEN DETECTED FROM SAME REFLECTOR (SEE 9.4 EVALUATION).
FLAW INDICATION EVALUATION WOE SECTION XA. APPENDIX Q ilmto ge 5 of 10 U4 Pmww InkMMais ftmd imamP we vI m
a, m~W i
a.I u
a~.
Ea W
PW, Applmills CL a-141111 (b)mil "IN 0a ihileaama 02 5-Ok~
2..
OJk 0.
I-as in, opradad lerath Taed GAS I Neab I Pat. Ni ad Pic 2et
%d deb baftabcasm ofS Taf 0"at.
Pmd.f bw.0ft Sbf Sabl EAebod
@4f Tab GA 0.312'md an-~w Obedu AmpM RelcOfth)
@10 I.
0)12 arp 16A I.
¶ ad aamd~a~d Nag. (00
- t.
3 yea".U VY.-
NOTE i ADAE Sadacs 0J daida rdes Ia 1 of which nonela wall aduaaa
)md.Prg m aemu O.
ea ICoda Cina N-40 w. ppfad ala namiWe ana3,wb..of.wldOU NOTE 2* The welid oaw ft 00 mao I
Wedad ton &*e eawte. car s~~m"W to VGAdo of mch fat. NIDo Nawi LS Pbe bbmiam bed t*APli km*M vSev m dd inik P04S?4. cia abe 60 WA e
2ftW g ngpkmgO mM bm M" we t easoi**
d.edpum wupi 0W0ft e OWe PW. Apmudh 4X 44MS 01 NO PLANAR FLAW INOICATIONS FOUND IN THE OUTER 25% OF THE UNDERLYING WELD AND EASE METAL.
LI.
8.7 aL"
LAYOUT OFOICATIONS Evalua1WNumber:
Wolf Creek Safety Nozzle C WC-UT-O01 P.ageeW 10 Page 6 of 10
EvaluIqFNumber:
Wolf Creek Safety Nozzle C WC-UT-O01 FLAW INDIC PLOTS Pa w
10 Page 7 of 10
REDUCTION IN ARAGE PLOTS Padw lO Page 8 of 10 Wolf Creek Safety Nozzle C WC-UT-O01 i
EvaluMIMMeport:
Wolf Creek Safety Nozzle C WC-UT-O01 REDUCTION IN C AGE PLOTS Pae 910 Page 9 of 10
ASSUMED LARGEST PLANAR FLAW UNINSPECTABLE VOLUME PLOTS Wolf Creek Safety Nozzle C WC-UT-O01 PagI~f 10 Page 10 of 10 LAMINAR FLAW INDICATION #1 LIES AT WELD OVERLAYIBASE METAL INTERFACE.
A PLANAR FLAW INDICATION HAS BEEN DETECTED FROM SAME REFLECTOR.
NO ASSUMED PLANAR FLAWS ARE CONSIDERED.
Enclosure III to ET 06-0055 ENCLOSURE Ill "C" SAFETY NOZZLE POST-REPAIR INDICATION EVALUATION
EvalullWNumber:
Wolf Creek Safety Nozzle C 0n.
Dnnn Paef 10 Page 1 of 10 FQru~
AuaI FLAW INDICATION EVALUATION
SUMMARY
FOR:
WOLF CREEK SAFETY NOZZLE C (POST-REPAIR)
Appendix Q Criteria Acceptance Standard Summary of Results Evaluation: Laminar Flaw Indications ASME Section Xl, 1998 ACCEPTABLE CONDITION: The single laminar flaw Edition 2000 Addenda, Table indication is acceptable with an area of 0.2 sq. in. versus the
[Ref, 9.1 of Evaluation Worksheet]
IWB-3514-3 allowable of 7.5 sq. in.
Evaluation: Reduction in Coverage in ACCEPTABLE CONDITION: For the DM Weld, the the PSlIISI Base Material Examination reduction in coverage (RiC) due to the laminar flaw Volume Due to Laminar Flaw
<10% Reduction in Coverage indication for axial beams is 0.1%; the RiC for Indications [Ref. 9.2 of Evaluation circumferential beams is 0.08%. For the SS Weld, there is W orksheet]
no RiC due to laminar flaw indications..
Evaluation: Consideration of the Largest Radial Planar Flaw (Axial and ASME Section XI, 1998 Circmfeental)Tha Cold xis in Ediion200 Adend, TbleACCEPTABLE CONDITION: The laminar flaw indication lies Circumferential) That Could Exist In Edition 2000 Addenda,.Table primarily at the weld overlay repair/base metal interface; as Any Uninspectable Volume Within the IWB-3514-2 Inservice such there is no uninspectable volume.
Weld Overlay Examination Volume [Ref.
Examination Standards 9.3 of Evaluation Worksheet]
Evaluation: Planar Flaw Indications in ASME Section XI, 1998 ACCEPTABLE CONDITION: A planar flaw indication PSI/ISI Base Material and Weld Overlay Edition 2000 Addenda, Table associated with the laminar flaw indication was detected only Examination Volumes [Ref. 9.4 of IWB-3514-2 Preservice at increased gain and has no measurable through-wall Evaluation Worksheet]
Examination Standards dimension.
Evaluation: Flaw indications in PSIIISI Base Material Examination Volume and ACCEPTABLE CONDITION: No planar flaw indications were Within Outer 25% of Underlying Weld Design Requirements of the detected in the outer 25% of the underlying weld and base and Base Metal Must Satisfy Design Weld Overlay metal.
Requirements of the Weld Overlay
[Ref. 9.5 of Evaluation Worksheet]
EvaludO'Number:
Wolf Creek Safety Nozzle C Post Repair Pagfl10 Page 2 of 10 Preparer:
Date:
Rick Rishei 3-Nov-2006 Norm Siniaho YAJOVv 2-0(.
I4~-(?~a~L WesDyne Level III Review:
Date:
ATTACHED FLAW INDICATION EVALUATION SHEETS:
Evaluation Indication Plots Reduction In Coverage Plots Assumed Planar Flaw Plots Layout of Indications
wNr FLAW INDICATION EVALUATIOON Td bOOE SCTON XI. APPENDIX Q aaf1a Page 3 of 10 FLAW INDICATION PLOTS DESCRIBING THE LOCATION AND MEASURED DIMENSIONS OF THE FLAW INDICATIONS ARE ATTACHED.
Ounmery of Flow bk*Wdfms: (Wifomwbon twko. from lO l,
p41 dm
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Owed Th"m0-3vw-sl bw fd fdielmls, i CbiUNmses ft mdIuftld C*msed TaWiM
,el WOmN of Oe00 a 0-0, 00 bmilwy in, bus Ovuwat mwyI 0o mks L*OO i
IbWNWO Pl) tm bISsi 0
dlsedee Type im()
Swimps)
Ve.
()
beWee 11
)I W
dbmsm. 0 b( Mlp)
FNlu 11 s.(*n) 1 0.30
- 0
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2 kA biselee in smpw evNY MM7 1: Twxl i mmond brwo mweld meif 00) mims. pewAlw b1w fl Io held OwMeofy.
f Loft " meS n
oewe wft. Far owkd 0
ihe TUwolan ewVige I ' VOWee Frsedte
- 00W40-1007. OMt6ed 0 3 Wef0ye0msvefti esl " u&sN flesl hele Stowesl~ ft noPw pef Eveluetio of Struo tuplWe Owfta hspeotifn IndlstmmIons toMwdanse wih AMW Cod. Seedo Al Appendix Q N00 W, 2W0 Addenda):
Acceptance Criterla:
OLI Lam.
bI ft" In SOW Softy OnNO vokoft dol mSI U1.uusseOWlurniis of TO 4304" Pit. Apsinis Q6 0413 IONI blnwd ly*lduif beadoEeft w
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Apemis AO Q46 Clf FLAW INDICATION PLOTS INDICATING THE REDUCTION IN COVERAGE IN THE PS1S1I EXAMINATION VOLUME DUE TO LAMINAR FLAW INDICATIONS ARE ATTACHED.
Too 11 bnl abmms*w Vomem Wimm d mais I
e.4n 6e4m iris"uolea cabelkd Cm-A -
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0011 (bin')
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to 4.0 3.1l an TOeW PUI SAWe Vehmm of Sf e l 60 1" M elVid:
am 1.70 2
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volume We*ftb Sad (fU) Weld bleen In Camp (110M *Om Uw ieelmM baued On Ae.
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Weld ftbdmliem 11 Osmesige (MC) free bw bidlielus baSed in *1111 bus (Ask ems. flbhelmu)
EvkilmFLAW INDICATION EVALUATION TW ODE SECTION XI. APPENDOIXQOdt Page 4 of 10 obudded Oe...
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0CA0 COYSRA*1 ISPUATE A04P11OS; PWAS tab.,, awe be ezuenied in wie aikm 4" An -w ChdqIel Areeee. to ob umlefetU -00
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(in) vow"fl (10' 1.C mc mu, Pwg mftW P1001 bomeg Vne. Simelnkf and 401111@1 Not Covind 10h km ObeinuI am*
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mc vaow"
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@At04 0
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on 51A001.
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memips Net noe i
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$11.211 an0 am5 000111L&
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-- by ho ft be awwsit oiin0 W MA NOWW bepe 411461 e
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- 01.
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Appoomin a6 941*a(sM LAMINAR FLAW INDICATION #I LIES AT WELD OVERLAY REPAIRII&SA METAL INTERFACE.
NO UNINSPECTABLE VOLUME IN WELD OVERLAY.
$A Pbweter km bInala ScWle#aoi W
beaftm ~
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mu ose =WOOin powrefmedleoe Sa.
emapoomes abodf v Tv*Adle@.U
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.. 0 FLAW INDICATION EVALUATION TWOOX)
SECTION XI. APPENDIX 0 I
L o
vvw C.e10 sw Page 5 of 10 A PLANAR FLAW INDICATION ASSOCIATED WITH LAMINAR FLAW IND. 91 HAS NO MEASURAILE ThRUO ALL AT INCREASED GAIN.
PLANAR FLAW IS ACCEPTABLE.
N INAANAR fFLd Ii FOUND IT U
w% W THE INDERLING WEL go SO W% W Ou 0 PS11 AND BE
- METAL, NO PLANAR FLAW INDICATIONS FOUND IN THE OUTER 28% OF THE UNDERLYING WELD AND BASE METAL.
EvaluWlWNumber:
Wolf Creek Safety Nozzle C Post Repair FLAW INDIC PLOTS Pa0 10 Page 6 of 10 Note: The plot of this indication shows a location below the the interface. This is due to a removal depth of previous indication.
The previous indication was removed after a final grind of 3/16" Into base material.
Eval.uS
.ort:
REDUCTION IN &RAGE PLOTS Pao 10 Wolf Creek Safety Nozzle C Page 7 of 10 Post Repair R4.46--
PIIasm Nac Eam (OM) Weld Exandrtln Volume Craes*41*tcon Area, 2A6 eq. In.
R4.0
Evalu§ rReport:
Wolf Creek Safety Nozzle C Post Repair REDUCTION IN (
AGE PLOTS P
10 Page 8 of 10 Measured 00 Suftce Length of Ind. #01 a 0.
Repair Inuluded a oavfty apprumxariftly 31tS0 Into bass mital
- rall-S.olells Ares of Axial Banm RIC dus to Laminar FLaw indleaNtl* Ut
- 0,00 sq. In.
R3,74 6.18 R3.64 at R3.74 end comeated Inoth 010,711" Cross4evtlonal Are of Ci-cuemnrerntlal BDem RIO due to Laminar Flaw hId. 81
- 0.178 sq. In.
EvaluiW Report:
Wolf Creek Safety Nozzle C Post-Repair ASSUMED LARGEST PLANAR FLAW UNINSPECTABLE VOLUME PLOTS 10 Page 9 of 10 LAMINAR FLAW INDICATION #1 LIES AT WELD OVERLAY REPAIRIBASE METAL INTERFACE.
THERE IS NO UNINSPECTABLE VOLUME.
0O0 LAYOUT MI~o*
Page 10 of 10
Enclosure IV to ET 06-0055 ENCLOSURE IV SPRAY NOZZLE PRE-REPAIR INDICATION EVALUATION
Evaluallumber:
Wolf Creek Spray Nozzle Informational UT Pagqý 11 Page 1 of 11 FLAW INDICATION EVALUATION
SUMMARY
FOR:
Wolf Creek Spray Nozzle (Informational UT)
I I
ADDendix Q Criteria Acceotnce Standard I
I Evaluation: Laminar Flaw Indications
[Ref. 9.1 of Evaluation Workshoet]
Evaluation: Reduction in Coverage In the PSIIISI Baae Material Examination Volume Due to Laminar Flaw Indications [Ref. 9.2 of Evaluation Worksheet]
Evaluation: Consideration of the Largest Radial Planar Flaw (Axial ani Circumferential) That Could Exist in Any Uninspectable Volume Within til Weld Overlay Examination Volume 9.3 of Evaluation Worksheet]
Evaluation: Planar Flaw Indications in P81/1S8 Base Material and Weld Overlay Examination Volumes [Ref. 9.4 of Evaluation Worksheet]
ASME Section Xl, 2001 Edition 2003 Addenda, Table IWB-3514-2 Preservice Examination Standards ACCEPTABLE CONDITION: No planar flaw indications detected in this informational UT.
Evalua~lrumber:
Wolf Creek Spray Nozzle Informational UT Pag@11I Page 2 of 11 Evaluation: Flaw Indications in PSIIISI Base Material Examination Volume and Within Outer 25% of Underlying Weld Design Requirements of the ACCEPTABLE CONDITION: No planar flaw indications and Base Metal Must Satisfy Design Weld Overlay detected in this informational UT.
Requirements of the Weld Overlay
[Ref. 9.5 of Evaluation Worksheet]
Preparer:
'RC-V Z.5l1eL Date:
WesDyne Level III Review:
Date:
/,/0/L ATTACHED FLAW INDICATION EVALUATION SHEETS:
Evaluation Indication Plots Reduction in Coverage Plots Assumed Planar Flaw Plots Layout of Indications
enwom..ft m
FLAW INDICATION EVALUATION TOlW SECTION XI, APPENDIX 0 Iuou6UT Page 3 of 11 FLAW INDICATION PLOTS DESCRIBING THE LOCATION AND MEASURED DIMENSIONS OF THE FLAW INDICATIONS AR ATTACHED.
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In Awoodfm wNh ASUE Code SftOn XI, Appendix Q (IX4 d..
M ddend):
Acceptance CrterIa:
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evfNWWAFLAW INDICATION EVALUATION Tolll OEb SECTION)%l APPENDIX Qo11 UT Page 4 of 11 6.Wkomm.obs mosmos swomm.ommot 00 100646..
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INDICATION 9118 ASSUMED TO W AT THE WELD OVERLAYMIASE METAL INTERFACE, I.E. NO UNINSPIECTASLE VOLUME IN WELD OVERLAY U09W oA"Jo Plen. P1061 UWROPOON&
VO
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la dUT FLAW INOWCATION EVALUATION TO
@3 SECTION XI, APPENOIX Q Page 5 of 11
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i.
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mea of Tab 414MI-3L IpRe'. Apees* OOO 4Upm OdI o
('eofl NO PLANAR FLAW INOICATKOI4 DETECTED IN THIS INFORMATIONAL UT 0.3 Pue.
Fb1 M oe lWW In ft P111IN wi W d~
M 1541 md w e e 39% We 2
e ad lm web a sll* to eip ava.m m~vbwn ewebof so ev" NO PLANAR FLAW INDICATiON DETIECTED IN THIS INFORMATIONAL. UT
EvahuatM rnber:
Wolf Creek Spray Nozzle Informational UT FLAW PLOTS PaI f 1I Page 6 of ii
Evalua1.eport:
Wolf Creek Spray Nozzle Informational UT REDUCTION IN C kGE PLOTS Page 7 of 11 PuSMI 8afncu nd Ph* (So) weod Examination Volume Cress-Sectional Area m
2.02 sq. In.
112.79
Evalludweport:
Wolf Crook Spray Nozzle Informational UT REDUCTION IN AGE PLOTS pIS 11 Page 8 of 11
Evolualtoport:
Wolf Creek Spray Nozzle Informational UT REDUCTION IN (
.GE PLOTS Pa 11 Page 9 of 11
ASSUMED LARGEST PLANAR FLAW IUNINSPECTABLE VOLUME PLOTS
- Evaluat, ort:
Wolf Creek Spray Nozzle Informational UT PagWf 11 Page 10 of 11 Largest Assumed Axial Planar Flaw In Unlnspoctablo Volume Caused by ind. 2 - O.2r TW 0.48-Largest Assumed Circumferential Planar Flaw in UnInspectable Volume Caused by Ind. #2
Evalus lumber:
Wolf Creek Spray Nozzle Informational UT LAYOUT OF CATIONS Pagelm 11 Page 11 of 11 SPRA*
NOZZLE =1!IO I
Enclosure V to ET 06-0055 ENCLOSURE V SPRAY NOZZLE POST-REPAIR INDICATION EVALUATION
Evalu]WlNumber:
Wolf Creek Spray Nozzle (Post-ReDair)
Pqof 9
Page 1 of 9 FLAW INDICATION EVALUATION
SUMMARY
FOR:
Wolf Creek Spray Nozzle (Post-Repair)
Appendix Q Criteria Acceptance Standard Summary of Results Evaluation: Laminar Flaw Indications ASME Section XI, 2001 ACCEPTABLE CONDITION: The single laminar flaw Edition 2003 Addenda, Table indication has an area of 1.8 sq. in. compared to the
[Ref. 9.1 of Evaluation Worksheet]
IWB-3514-3 allowable of 7.5 sq. in.
Evaluation: Reduction in Coverage in the PSI/IS1 Base Material Examination ACCEPTABLE CONDITION: For the DM weld, the Volume Due to Laminar Flaw
<circumferential beam reduction in coverage (RiC) is 1.08%;
Ind10%tion Reuto in2 Cva Evathe axial beam RiC is 1.3%. For the SS weld, there is no Indications [Ref. 9.2 of Evaluation RiC.
Worksheet]
Evaluation: Consideration of the Largest Radial Planar Flaw (Axial and ASME Section XI, 2001 Circumferential) That Could Exist In Edition 2003 Addenda, Table ACCEPaBLE CoNDITION:
The singlerlaminar flaw Any Uninspectable Volume Within the IWB-3514-2 Inservice indication is located at the weld overlay/base Metal interface; Weld Overlay Examination Volume [Ref.
Examination Standards thus there is no uninspectable volume in the weld overlay.
9.3 of Evaluation Worksheet]
Evaluation: Planar Flaw Indications In ASME Section XI, 2001 PSI/ISI Base Material and Weld Overlay Edition 2003 Addenda, Table ACCEPTABLE CONDITION: No planar flaw indications Examination Volumes [Ref. 9.4 of IWB-3514-2 Preservice detected.
Evaluation Worksheet]
Examination Standards Evaluation: Flaw indications in PSI/ISI Base Material Examination Volume and Within Outer 25% of Underlying Weld Design Requirements of the ACCEPTABLE CONDITION: No planar flaw indications and Base Metal Must Satisfy Design Weld Overlay detected.
Requirements of the Weld Overlay
[Ref. 9.5 of Evaluation Worksheet]
EvalulWNumber:
Wolf Creek Spray Nozzle (Post-Repair)
Pawof 9 Page 2 of 9 Preparer:
Date:
Rick Rishel Nov. 6, 2006 Norm Siniaho Nov. 6, 2006 WesDyne Level III Review:
Date:
ATTACHED FLAW INDICATION EVALUATION SHEETS:
Evaluation Indication Plots Reduction in Coverage Plots Assumed Planar Flaw Plots Layout of Indications
FLAW INDICATION EVALUATION SECTION XI, APPENDIX 0 Page 3 of 9 FLAW INDICATION PLOTS DESCRIING THE LOCATION AND MEASURED DIMENSION8 OF THE FLAW INDICATIONS ARE ATTACHED.
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Evalua mber Wolf Cree,Spray Nozzle (Post-Repair)
FLAW INDIA N PLOTS of 9 Page 5 of 9
Evalo-Wolf Creekir)
(Post-Repair) way Nozzle REDUCTION IN AGE PLOTS Page 6 of 9 Pam meadmisd Caw M
good"~ Am~ - 1.36 m4 In.f (2W PIU.)
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Eva(Pl (Poet-Repair) wray Nozzle REDUCTION IN
,GE PLOTS Page 7 of 9 Uomwin 00 aw ml Lmih st w.
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Vm
Evaluast rt ASSUMED LARGEST PLANAR FLAWW' UNINSPECTABLE VOLUME PLOTS Wolf Cree ay Nozzle (Post-Repair)
Pag INDICATION #1 IS ASSUMED TO BE AT THE WELD OVERLAYIBASE METAL INTERFACE, I.E. NO UNINSPECTABLE VOLUME IN WELD OVERLAY W8of9 re 8 of 9
wafc,*. 8 LAYrO4 oNS of 9....
Page 9 of 9 Tr I
3.20