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{{Adams
#REDIRECT [[NG-10-0328, Response to Supplemental Request for Additional Information Related to Relief Request for 1st Period Limited Weld Examinations]]
| number = ML101660124
| issue date = 06/15/2010
| title = Response to Supplemental Request for Additional Information Related to Relief Request for 1st Period Limited Weld Examinations
| author name = Costanzo C R
| author affiliation = NextEra Energy Duane Arnold, LLC
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000331
| license number = DPR-049
| contact person =
| case reference number = NG-10-0328
| document type = Letter
| page count = 17
| project =
| stage = Supplement
}}
 
=Text=
{{#Wiki_filter:Enclosure to NG-10-0328 Page 1 of 4 Enclosure Response to Request for Additional Inform ation Related to Relief Request for 1st Period Limited Weld Examinations
 
Enclosure to NG-10-0328 Page 2 of 4 Response to Request for Additional Inform ation Related to Relief Request for 1st Period Limited Weld Examinations NRC Question #1:
For CUA-J024 weld in the Reactor Water Cl eanup System, this is a weld between a forged penetration and a cast valve, 50% coverage was probably the best coverage to be expected by the inspection. You have said in the July 30, 2009 submittal that 50% coverage is OK because the weld is not susceptible to IGSCC. But the only reason that weld is in RI Category 2 is because it is susceptible to IGSCC, otherwise, it is Category 4. Please clarify this apparent discrepancy.
NextEra Energy Duane Arnold Response:
The CUA-J024 weld in the Reactor Water Cleanup System is a Category 4 weld.
Please refer to Attachment 1 for 4 th interval inspection in formation for Category 4 welds from the Duane Arnold Energy Center (DAEC).
 
NRC Question #2:
There is an inconsistency in the documentat ion provided. Page 1 of 1 on report no.
UT-07-029 "UT Calibration/Examination" show s the exam angle of the Search Unit as "60 o ," and the mode is listed as "shear
."  But Page 2 of 2 on UT-07-028 "Supplemental Report" shows a sk etch of the inspection c onfiguration and it includes a notation that the transducer was at "60 o" RL, not 60 o , shear mode. Please clarify.
NextEra Energy Duane Arnold Response:
On UT-07-029, the mode should have been listed as Longitudinal. This is a typographical error; the datasheet has been co rrected and an image of the corrected datasheet is provided as Attachment 2.
 
NRC Question #3:
Please clearly identify the wave modality, insonification angles, and scan directions used for all ultrasonic examinations.
 
Enclosure to NG-10-0328 Page 3 of 4 NextEra Energy Duane Arnold Response:
The following table is provided with information from the exam ination datasheets:
Weld Wave Mode Insonification Angles Scan Direction HCC-C001 Refracted Longitudinal60° Upstream (Axial), CW & CCW (Parallel) RMA-J004 Shear Longitudinal 45°  60° Downstream, CW & CCW Downstream CUA-J024 Shear Longitudinal 45°  60° Upstream, CW & CCW Upstream NRC Question #4:
Did the inspection exam category R-A m eet ASME Code, Section XI, App VIII qualification requirements? 
 
NextEra Energy Duane Arnold Response:
Yes, ASME Section XI Code Case N-578 paragraph -2500 (c) states "Examination qualification and methods and personnel qualifications shall be in accordance with the Edition and Addenda of Sect ion XI specified in the Owner's Inservice Inspection Program."
 
NRC Question #5:
Supply a description of the materials of cons truction for the B1.40 RV head to flange weld and the R1.16 RMA-J004 weld.
 
NextEra Energy Duane Arnold Response:
Please refer to the following table for materials of construction:
Weld Materials HCC-C001 A508 Class 2 - head flange SA533 Class 1 GR. B - side plate
 
RMA-J004 A182 304SS - sock-o-let A240 304SS - pipe 
 
Enclosure to NG-10-0328 Page 4 of 4 NRC Question #6:
Provide a better copy of the photo in submittal for CUA-J024 weld.
 
NextEra Energy Duane Arnold Response:
Please refer to Atta chment 3 for photos.
 
NRC Question #7:
The original July 30, 2009 submittal includes the following statement:
"The Nondestructive Exami nation (NDE) procedure us ed for this examination incorporates the examination techniques qualified under Appendix Vlll of the ASME Section XI Code by the Perform ance Demonstration Initiative (PDI).
That procedure was approved under Relief Request NDE-R008 on January 31, 2007."
 
The January 31, 2007 document provides aut horization to use an alternative to Code requirements, not NRC approval of a procedure. Reword this paragraph to reflect the fact that the NRC authorized the use of the al ternative for the remainder of the 4 th ISI interval at DAEC.
NextEra Energy Duane Arnold Response:
 
NextEra Energy Duan e Arnold hereby rewords the st atement in Reference 1 as follows (change in italics):
 
"The Nondestructive Exami nation (NDE) procedure us ed for this examination incorporates the examination techniques qualified under Appendix Vlll of the ASME Section XI Code by the Perform ance Demonstration Initiative (PDI).
That alternative was approved under Relief Request NDE-R008 on January 31, 2007."
 
==References:==
: 1. Letter, Richard L. Anderson (NextE ra Energy Duane Arnold, LLC) to Document Control Desk (USNRC), Relief Request for 1st  Period Limited Weld Examinations, dated July 30, 2009, NG-09-0539 (ML092230346) 2. Letter, Christopher R. Costanzo (NextEra Energy Duane Arnold, LLC) to Document Control Desk (USNRC), Response to Request for Additional Information Related to Relief Req uest for 1st Period Limited Weld Examinations, dated February 25, 2010, NG 0094 (ML100680431) to NG-10-0328 5 Pages Follow
 
Attachment 1 4th Interval History for Category 4 Welds
 
Period 1    Period 2    Period 3 Category, Item No.,   
 
Class Summary No.
CompID                                                       
 
System Outage / Scope / Method Type / Procedure Dwg/ISO No.
Comp. Desc.                                               
 
Code Case RFO-20-1RFO-21RFO-22RFO-23 R-A 61200-RI 1.2-07 SHT-01 ISI-c----------R1.16-4CSA-F002ASE EXT - SAFEEN D AUG-c----------1CS R-A 61400-RI 1.2-07 SHT-01 ISI-c----------R1.16-4CSA-F004 PIPE - PIPE AUG-c----------1CS R-A 61600-RI 1.2-07 SHT-01 ISI----s-------R1.16-4CSA-J003 PIPE - PIPE AUG-c----------1CS R-A 64500-RI 1.2-08 SHT-01 ISIc-----------R1.16-4CSB-F002ASAFEEND - S/E Extensio n AUGc-------b---1CS R-A 64700-RI 1.2-08 SHT-01 ISI----s-------R1.16-4CSB-F004 PIPE - PIPE AUGc-------b---1CS R-A 64900-RI 1.2-08 SHT-01 ISIc-----------R1.16-4CSB-J003 PIPE AUGc-------b---1CS R-A 74600-RI 1.2-11A SHT-01 ISIc-----------R1.16-4CUA-J024 PIPE - MOTOR OPERATED GAT E AUGc-------b---1CU R-A 103000-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-F002 NOZZLE - SAFEEND AUGc---b-------1RC R-A 103200-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J003 SAFEEND - PIPE AUG------------1RC Duane Arnold Nuclear Plant 4th Interval RFO-21 / ISI / UT /  / ACP1211.38~
RFO-21 / ISI / UT /  / ACP1211.38~
Category 4 RFO-21 / AUG / UT /  /
ACP1211.20~
 
RFO-22 / ISI / UT /  / ACP1211.20~
RFO-20-1 / ISI / UT / UT /
ACP1211.38~
 
RFO-20-1 / ISI / UT / UT /
 
ACP1211.38~
 
RFO-20-1 / ISI / UT / UT /
 
ACP1211.38~
 
RFO-20-1 / ISI / UT / UT /
 
ACP1211.38~
RFO-22 / ISI / UT /  / ACP1211.38~
RFO-20-1 / ISI / UT / UT /
ACP1211.20~
 
RFO-20-1 / ISI / UT / UT /
 
ACP1211.20~
RFO-20-1 / ISI / UT / UT /
ACP1211.20~
 
RFO-20-1 / ISI / UT / UT /
 
ACP1211.20~
RFO-22 / AUG / UT /  /
Zetec_OmniScanPA_03~6/7/2010ScheduleWorks V. 8.1Page  1  -  5 Period 1    Period 2    Period 3 Category, Item No.,   
 
Class Summary No.
CompID                                                       
 
System Outage / Scope / Method Type / Procedure Dwg/ISO No.
Comp. Desc.                                               
 
Code Case RFO-20-1RFO-21RFO-22RFO-23 Duane Arnold Nuclear Plant 4th Interval Category 4 R-A 103500-RI 1.2-19A SHT-01 ISI----s-------R1.16-4RCA-J004 PIPE - 90 DEGREE LONG RADIUS ELBOWAUG------------1RC R-A 103900-RI 1.2-19A SHT-01 ISI----s-------R1.16-4RCA-J005 90 DEGREE LONG RADIUS ELBOW - PIPEAUG------------1RC R-A 104500-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J006 PIPE AUG------------1RC R-A 104800-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J008 PIPE AUG------------1RC R-A 105100-RI 1.2-19A SHT-01 ISI--------s---R1.16-4RCA-J012 PIPE - 90 DEGREE LONG RADIUS ELBOWAUG------------1RC R-A 105500-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J013 90 DEGREE LONG RADIUS ELBOW - MOTOR OPERATED GATEAUG
------------1RC R-A 105700-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J015 MOTOR OPERATED GATE - PIP E AUG------------1RC R-A 106400-RI 1.2-19A SHT-01 ISI----s-------R1.16-4RCA-J021 PIPE - 90 DEGREE SHORT RADIUS ELBOWAUG------------1RC R-A 106800-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J022 90 DEGREE SHORT RADIUS ELBOW - UNKNOWN PUMP TYPE -AUG
------------1RC RFO-22 / ISI / UT /  / ACP1211.20~
RFO-22 / ISI / UT /  / ACP1211.20~
RFO-23 / ISI /  /  / ~
RFO-22 / ISI / UT /  / ACP1211.20~6/7/2010ScheduleWorks V. 8.1Page  2  -  5 Period 1    Period 2    Period 3 Category, Item No.,   
 
Class Summary No.
CompID                                                       
 
System Outage / Scope / Method Type / Procedure Dwg/ISO No.
Comp. Desc.                                               
 
Code Case RFO-20-1RFO-21RFO-22RFO-23 Duane Arnold Nuclear Plant 4th Interval Category 4 R-A 107000-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J024 UNKNOWN PUMP TYPE - PIPE AUG------------1RC R-A 107500-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J028 PIPE - MOTOR OPERATED GAT E AUG------------1RC R-A 107700-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J030 MOTOR OPERATED GATE - 90 DEGREE LONG RADIUS ELBOWAUG
------------1RC R-A 108100-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J032 90 DEGREE LONG RADIUS ELBOW - PIPEAUG------------1RC R-A 108800-RI 1.2-19A SHT-01 ISI------------R1.16-4RCA-J038 PIPE AUG------------1RC R-A 109300-RI 1.2-19A SHT-01 ISIc-----------R1.16-4RCA-J041 PIPE - TEE AUG------------1RC R-A 126100-RI 1.2-21A SHT-01 ISI-c----------R1.16-4RCB-F002 NOZZLE - SAFEEND AUGcB----------1RC R-A 126300-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J003 SAFEEND - PIPE AUG------------1RC R-A 126700-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J004 PIPE - 90 DEGREE LONG RADIUS ELBOWAUG------------1RC RFO-20-1 / ISI / UT / UT /
ACP1211.20~
 
RFO-20-1 / ISI / UT / UT /
 
ACP1211.20~
 
RFO-20-1 / ISI / UT / UT /
 
ACP1211.20~
 
RFO-20-1 / ISI / UT / UT /
 
ACP1211.20~
RFO-21 / ISI / UT /  / ACP1211.38~
RFO-21 / ISI / UT /  /
 
Zetec_OmniScanPA_03~6/7/2010ScheduleWorks V. 8.1Page  3  -  5 Period 1    Period 2    Period 3 Category, Item No.,   
 
Class Summary No.
CompID                                                       
 
System Outage / Scope / Method Type / Procedure Dwg/ISO No.
Comp. Desc.                                               
 
Code Case RFO-20-1RFO-21RFO-22RFO-23 Duane Arnold Nuclear Plant 4th Interval Category 4 R-A 127300-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J005 90 DEGREE LONG RADIUS ELBOW - PIPEAUG------------1RC R-A 127600-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J006 PIPE - TEE AUG------------1RC R-A 128000-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J007 TEE - PIPE AUG------------1RC R-A 128800-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J015 PIPE - 90 DEGREE LONG RADIUS ELBOWAUG------------1RC R-A 129200-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J016 90 DEGREE LONG RADIUS ELBOW - MOTOR OPERATED GATEAUG
------------1RC R-A 129400-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J018 MOTOR OPERATED GATE - PIP E AUG------------1RC R-A 130100-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J024 PIPE - 90 DEGREE SHORT RADIUS ELBOWAUG------------1RC R-A 130500-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J025 90 DEGREE SHORT RADIUS ELBOW - UNKNOWN PUMP TYPE -AUG
------------1RC R-A 130700-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J027 UNKNOWN PUMP TYPE - PIPE AUG------------1RC6/7/2010ScheduleWorks V. 8.1Page  4  -  5 Period 1    Period 2    Period 3 Category, Item No.,   
 
Class Summary No.
CompID                                                       
 
System Outage / Scope / Method Type / Procedure Dwg/ISO No.
Comp. Desc.                                               
 
Code Case RFO-20-1RFO-21RFO-22RFO-23 Duane Arnold Nuclear Plant 4th Interval Category 4 R-A 131200-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J031 PIPE - MOTOR OPERATED GAT E AUG------------1RC R-A 131400-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J033 MOTOR OPERATED GATE - 90 DEGREE LONG RADIUS ELBOWAUG
------------1RC R-A 131800-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J035 90 DEGREE LONG RADIUS ELBOW - PIPEAUG------------1RC R-A 132500-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J041 PIPE AUG------------1RC R-A 133000-RI 1.2-21A SHT-01 ISI------------R1.16-4RCB-J044 PIPE - TEE AUG------------1RC R-A 89700-RI 1.2-14 SHT-01 ISI----s-------R1.16-4RHB-F003 PIPE - PIPE AUG------------1RH RFO-22 / ISI / UT /  / ACP1211.38~6/7/2010ScheduleWorks V. 8.1Page  5  -  5          to NG-10-0328 1 Page Follows
 
Attachment 2 Revised UT-07-029 "UT Calibration/Examination"
 
to NG-10-0328 2 Pages Follow
 
Attachment 3 CUA-J024 Weld Photos}}

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