ML051260282

Relief Request RBS-ISI-001

ML051260282
Person / Time
Site:	River Bend
Issue date:	05/20/2004
From:	Michael Webb NRC/NRR/DLPM/LPD4
To:	Davant G Entergy Nuclear Operations
Webb M, NRR/DLPM, 415-1347
Shared Package
ML051600374	List: ML051260197 ML051260208 ML051260274 ML051260279 ML051260281 ML051260282 ML051260283 ML051600345
References
RBS-ISI-001, TAC MC1555
Download: ML051260282 (2)

Text

Michael Webb - Relief Request RBS-ISI-001 (NRC TAC MC1555) Paqe i

~i~caelWeb- Rlie ReqestRBSI~l001(NRCTACM~i555 Paie 1 ]

From: Michael Webb To: DAVANT, GUY H Date: 5/20/04 3:54PM

Subject:

Relief Request RBS-ISI-001 (NRC TAC MC1 555)

Guy, I am resending RAI questions that I sent in early February that were developed by the staff of the Materials and Chemical Engineering Branch regarding River Bend Station Relief Request RBS-ISI-001 dated December 4, 2003, (NRC TAC MC1555). The request seeks relief from achieving Code-required coverage (>90 percent) when performing volumetric examinations of various components identified in your request.

After you and your colleagues have had a chance to further evaluate them, we can set up a call to discuss them if you desire to do so. Based on our previous phone conversations, I understand that these questions are similar to ones the NRC staff has sent to you regarding a Arkansas Nuclear One relief request.

Thank you, Mike Webb NRC Project Manager for River Bend Station 301-415-1347 The staff review finds that the River Bend Station relief request RBS-ISI-001 does not provide data sheets and results of ultrasonic examinations welds which show no recordable indications of degradation or no change in weld since last examination. Relief Request RBS-ISI-001 states that, *The examinations performed on the subject components, in addition to examinations of similar welds contained in the program, would detect generic degradation, if it existed, thereby demonstrating an acceptable level of integrity."

1) Have the subject welds been inspected in the past?

2) If the subject welds have been previously inspected, were any new indications identified or change in previous indications noted during the most recent examinations?

3) Was a comparison performed between the most recent ISI examination and the last? If the comparison was performed, what were the results for each weld listed below?

1RCS-90OB-FWBO6 1RCS-90OC-FWB15 1RCS-90OC-FWB1 6 1RCS-900CX-SWO1 4BC 1RCS-900CX-SWO14CB 1WCS-OlAl -XI-FW005 . AE I 6 1WCS-001A3-XI-FW011 boc<CT fo r PCM RaRru4I1',.t CC: Rafael Rodriguez

[C:\WINDOWS\TEMP\GWJOOOO1.TMP Page 1 Mail Envelope Properties (40ADOCFD.7B7: 5: 21368)

Subject:

Relief Request RBS-ISI-001 (NRC TAC MC1555)

Creation Date: 5/20/04 3:54PM From: Michael Webb Created By: MKW@nrc.gov Recipients Action Date & Time entergy.com Transferred 05/20/04 03:54PM GDAVANT (DAVANT, GUY H) nrc.gov owf4_po.OWFNDO Delivered 05/20/04 03:54PM MKW BC (Michael Webb) nrc.gov twf4_po.TWFNDO Delivered 05/20/04 03:55PM RLR1 CC (Rafael Rodriguez) Opened 05/20/04 03:56PM Post Office Delivered Route entergy.com owf4_po.OWFNDO 05/20/04 03:54PM nrc.gov twf4_po.TWFNDO 05/20/04 03:55PM nrc.gov Files Size Date & Time MESSAGE 3238 05/20/04 03:54PM Options Auto Delete: No Expiration Date: None Notify Recipients: Yes Priority: Standard Reply Requested: No Return Notification: None Concealed

Subject:

No Security: Standard To Be Delivered: Immediate Status Tracking: Delivered & Opened