ML031630525
| ML031630525 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 05/13/2003 |
| From: | Bhalchandra Vaidya NRC/NRR/DLPM/LPD4 |
| To: | Harrison A South Texas |
| vaidya B, NRR/DLPM, 415-3308 | |
| Shared Package | |
| ML031600489 | List: |
| References | |
| RR-ENG-2-30 | |
| Download: ML031630525 (5) | |
Text
I C:\\TEMP\\GW)OOOOl.TMP Page 1 Mail Envelope Properties (3EC14397.847: 21: 21146)
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Fwd: Relief Request RR-ENG-2-30, Underwater welding at STP 1& 2 5/13/03 3:12PM Bhalchandra Vaidya BKV@nrc.gov Recipients nrc.gov owf2_po.OWFN_DO RAG CC (Robert Gramm) nrc.gov owf4_po.OWFN_DO MCT CC (Mohan Thadani)
Action Delivered Opened Delivered Opened Date & Time 05/13/03 03:12PM 05/14/03 07:3 1AM 05/13/03 03:12PM 05/13/03 03:34PM stpegs.com Awharrison (Awharrison @ stpegs.com)
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Size 1452 No None Yes Standard No None No Standard Irmediate Delivered & Opened Transferred Delivered 05/13/03 03:12PM 05/13/03 03:12PM 05/13/03 03:12PM Route nrc.gov nrc.gov stpegs.com Date & Time 05/13/03 03:12PM I \\TEMP\\G}OOOOl1.TMP Page 1
IBhalchandra Vaidya-Fwd:_Relief Request RR-ENG-2-30, Underwater welding at STP 1& 2 From:
Awharrison@stpegs.com Date:
5/13/03 3:12PM
Subject:
Fwd: Relief Request RR-ENG-2-30, Underwater welding at STP 1 & 2 I am forwarding the RAI questions herewith.
In order to schedule the phone call for tommorrow, I need to talk to you to get the convenient time slots.
Please get in touch with me and let know which number I should dial.
The time slot, 10:30 am - 1:30 pm, Rockville MD time, ( may be an hour to hour and a half) is okay for everybody here. Is this okay with your people ? Please let me know.
Thanks.
Bhalchandra Vaidya NRR/DLPM Licensing Project Manager, PDIV-1 Grand Gulf Nuclear Station, Unit 1 301-415-3308 M/S: 0-7D1 Mohan Thadani; Robert Gramm
~~~~~Page 1 CC:
Bhalchandra Vaidya - Relief Request RR-ENG-2-30, Underwater welding at STP 1& 2 Page 1 From:
Edward Andruszkiewicz To:
Bhalchandra Vaidya; Mohan Thadani Date:
5/13/03 2:54PM
Subject:
Relief Request RR-ENG-2-30, Underwater welding at STP 1 & 2 Attached please find the RAI for the subject relief request.
CC:
Ganesh Cheruvenki; Matthew Mitchell; Stephanie Coffin
IBhalchandraVaidya - STP Underwater.wpd Page 1 RAI for STP UNDERWATER WELDING (RR-ENG-230)
- 1.
Will ASME Section IX guided bend tests per OW-160 be performed on the welding procedure qualification tests?
- 2.
Is this welding wet or dry hyper baric, dry chamber, dry spot, etc.?
- 3.
What is the specific item to be welded using underwater welding?
- 4.
What material is the em to be welded using underwater welding made of? (ASME SA Number, type, and grade; heat treatment condition)
- 5.
What is the specific filler material to be used for the welding? (filler metal classification)
- 6.
What welding process or processes are to be used?
- 7.
What process or processes are to be used for cutting or metal removal?
- 8.
Will any additional NDE be done on this weld?
- 9.
What NDE will be done on this weld?
- 10.
Will any Examination be done on this item on an ongoing basis? (Every outage or every other outage, etc.)
- 11.
What is the fluence level in the area to be welded?
- 12.
Will the mock-up material have the same fluence level applied to it?
- 13.
The high neutron fluence welding mock-up testing, procedure, data and results shall be attached to the relief request.
- 14.
What is the licensee's basis that the proposed altemative provides an acceptable level of quality and safety?
- 15.
Provide information on the depth of the water at which the repair will be performed.
- 16.
Confirmation tests for welders shall be performed prior to the commencement of production work. The confirmation test requirements specified in AWS D 3.6 shall be followed.
- 17.
The licensee should provide test results of filler metal qualifications per paragraph 4.0 of code case 516-2. The minimum required ferrite number of the weld metal shall be specified in the relief request.
- 18.
The items above shall be included in or affached to the relief request.
I Bhalchandra Vaidya - STP Underwater.wpd
[Bhalchandra Vaidya - STP Underwater.wpd Page 2 19.
Undor Duration of Proposed Alternativcs, the licensec shall give a time for the duration becausc thero ic no guarantee that this code casc will be accepted, until it actually it published.