ML063490441

Cover Letter: Review of MRP-175, Materials Reliability Program: PWR Internals Aging Degradation Mechanism Screening and Threshold Values

ML063490441
Person / Time
Site:	Nuclear Energy Institute, PROJ0669
Issue date:	12/28/2006
From:	Rosenberg S NRC/NRR/ADRA/DPR/PSPB
To:	Jeffrey Riley Nuclear Energy Institute
References
TAC MD2435
Download: ML063490441 (4)

Text

December 28, 2006 Mr. James H. Riley, Director Engineering Nuclear Energy Institute Suite 400 1776 I Street, NW Washington, DC 20006-3708

SUBJECT:

REVIEW OF MRP-175, MATERIALS RELIABILITY PROGRAM: PWR INTERNALS AGING DEGRADATION MECHANISM SCREENING AND THRESHOLD VALUES (TAC NO. MD2435)

Dear Mr. Riley:

By letter dated July 6, 2006, the Nuclear Energy Institute (NEI) submitted, for information only, a non-proprietary version of MRP-175, Materials Reliability Program: PWR Internals Aging Degradation Mechanism Screening and Threshold Values to the U.S. Nuclear Regulatory Commission (NRC). A proprietary version of this document was transmitted to the NRC in a letter dated March 31, 2006.

The NRC has performed a review of MRP-175. The enclosed NRC comments are being provided so that the Materials Reliability Program Committee may consider them in the context of their overall program. No specific response to the comments is required. However, please review the enclosed comments for proprietary information within 15 days of receipt and respond with your determination. The NRC staff will issue a non-proprietary version of our comments.

Sincerely,

/RA/

Stacey L. Rosenberg, Chief Special Projects Branch Division of Policy and Rulemaking Office of Nuclear Reactor Regulation Project Nos. 669 and 689

Enclosure:

NRC Comments On MRP-175 cc w/o encl: See next page

December 28, 2006 Mr. James H. Riley, Director Engineering Nuclear Energy Institute Suite 400 1776 I Street, NW Washington, DC 20006-3708

SUBJECT:

REVIEW OF MRP-175, MATERIALS RELIABILITY PROGRAM: PWR INTERNALS AGING DEGRADATION MECHANISM SCREENING AND THRESHOLD VALUES (TAC NO. MD2435)

Dear Mr. Riley:

By letter dated July 6, 2006, the Nuclear Energy Institute (NEI) submitted, for information only, a non-proprietary version of MRP-175, Materials Reliability Program: PWR Internals Aging Degradation Mechanism Screening and Threshold Values to the U.S. Nuclear Regulatory Commission (NRC). A proprietary version of this document was transmitted to the NRC in a letter dated March 31, 2006.

The NRC has performed a review of MRP-175. The enclosed NRC comments are being provided so that the Materials Reliability Program Committee may consider them in the context of their overall program. No specific response to the comments is required. However, please review the enclosed comments for proprietary information within 15 days of receipt and respond with your determination. The NRC staff will issue a non-proprietary version of our comments.

Sincerely,

/RA/

Stacey L. Rosenberg, Chief Special Projects Branch Division of Policy and Rulemaking Office of Nuclear Reactor Regulation Project Nos. 669 and 689

Enclosure:

NRC Comments On MRP-175 cc w/o encl: See next page DISTRIBUTION:

PUBLIC PSPB Reading File GCheruvenki RidsNrrDpr RidsNrrDprPspb RidsNrrDciCvib RidsNrrLADBaxley RidsAcrsAcnwMailCenter RidsNrrPMTMensah RidsOgcMailCenter RidsNrrDciCfeb RidsNrrDciCpnb ADAMS ACCESSION NO.: ML063490441 NRR-106 OFFICE DPR/PSPB DPR/PSPB DPR/PSPB NAME TMensah DBaxley SRosenberg DATE 12/28 /06 12/ 27 /06 12/28/06 OFFICIAL RECORD COPY

Nuclear Energy Institute Project No. 689 Electric Power Research Institute Project No. 669 cc:

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