ML061950004

Facsimile Transmission, Draft Request for Additional Information Regarding Post Maintenance/Modification Surveillance Requirements

ML061950004
Person / Time
Site:	Millstone
Issue date:	07/14/2006
From:	Nerses V NRC/NRR/ADRO/DORL/LPLI-2
To:	Poole B NRC/NRR/ADRO/DORL/LPLI-2
Nerses V, NRR//DLPM, 415-1484
References
TAC MD0693
Download: ML061950004 (3)

Text

July 14, 2006 MEMORANDUM TO: Brooke D. Poole, Acting Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Victor Nerses, Senior Project Manager /RA/

Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

SUBJECT:

MILLSTONE POWER STATION, UNIT NO. 3 - FACSIMILE TRANSMISSION, DRAFT REQUEST FOR ADDITIONAL INFORMATION REGARDING POST MAINTENANCE/MODIFICATION SURVEILLANCE REQUIREMENTS (TAC NO. MD0693)

The attached draft request for additional information (RAI) was transmitted on July 14, 2006, to Mr. Paul Willoughby, at Dominion Nuclear Connecticut, Inc. (DNC) by facsimile. This was done to support a telephone conversation to facilitate the review being conducted by the Nuclear Regulatory Commission (NRC) staff in order to clarify certain items in the licensees submittal. The draft RAI is related to DNCs submittal dated March 28, 2006, regarding a request for deleting redundant surveillance requirements pertaining to post-maintenance/post-modification testing. Review of the draft RAI will allow DNC to determine and agree upon a schedule for response to the RAI. This memorandum and the attachment do not convey a formal request for information or represent an NRC staff position.

Docket No. 50-423

Enclosure:

As stated

July 14, 2006 MEMORANDUM TO: Brooke D. Poole, Acting Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Victor Nerses, Senior Project Manager /RA/

Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

SUBJECT:

MILLSTONE POWER STATION, UNIT NO. 3 - FACSIMILE TRANSMISSION, DRAFT REQUEST FOR ADDITIONAL INFORMATION REGARDING POST MAINTENANCE/MODIFICATION SURVEILLANCE REQUIREMENTS (TAC NO. MD0693)

The attached draft request for additional information (RAI) was transmitted on July 14, 2006, to Mr. Paul Willoughby, at Dominion Nuclear Connecticut, Inc. (DNC) by facsimile. This was done to support a telephone conversation to facilitate the review being conducted by the Nuclear Regulatory Commission (NRC) staff in order to clarify certain items in the licensees submittal. The draft RAI is related to DNCs submittal dated March 28, 2006, regarding a request for deleting redundant surveillance requirements pertaining to post-maintenance/post-modification testing. Review of the draft RAI will allow DNC to determine and agree upon a schedule for response to the RAI. This memorandum and the attachment do not convey a formal request for information or represent an NRC staff position.

Docket No. 50-423

Enclosure:

As stated DISTRIBUTION:

PUBLIC LPL1-2 R/F RidsNrrLACRaynor RidsNrrPMGMiller RidsNrrDorlLpl1-2 ADAMS Accession Number: ML061950004 OFFICE LPL1-2/PM LPL1-2/LA SPWR/BC NAME VNerses:rsa CRaynor JNakoski DATE 7/14/06 7/14/06 7/14/06 OFFICIAL RECORD COPY

DRAFT REQUEST FOR ADDITIONAL INFORMATION MILLSTONE POWER STATION, UNIT 3 POST MAINTENANCE/MODIFICATION SURVEILLANCE REQUIREMENTS DOCKET NO. 50-423 By letter dated March 28, 2006, Dominion Nuclear Connecticut, Inc. (DNC, the licensee) submitted a request for deleting redundant surveillance requirements (SRs) pertaining to post-maintenance/post-modification testing. The Nuclear Regulatory Commission (NRC) staff requests the following additional information to complete its review.

The licensee proposed to delete from the Technical Specifications the following post-maintenance SRs: SR 4.1.3.4.b, a portion of SR 4.5.2.g.1, and SR 4.5.2.h. The licensee claimed that the removal of these portions of the SRs is adequate by citing SR 4.0.1, which states in the associated Bases section, in part, that upon completion of maintenance, appropriate post-maintenance testing is required to declare the equipment operable. However, neither SR 4.0.1 nor the associated Bases section specify what post-maintenance testing must be completed to fulfill the deleted SRs. For example, SR 4.1.3.4 requires that the rod drop time is demonstrated. SR 4.5.2.g requires verification of the correct position of each electrical and/or mechanical stop for emergency core cooling system throttle valves. SR 4.5.2.h requires that flow balance testing is performed on the charging pump lines, safety injection pump lines, and residual heat removal pump lines.

Identify specific post-maintenance testing requirements in the relevant maintenance procedure or documentation, and justify that the test requirements equivalent to the deleted SRs discussed above will be completed in accordance with SR 4.0.1.

Enclosure