ML12115A069

Request for Additional Information Related to Relief Requests RR-5 and RR-6 for the Fifth Ten-Year Interval Inservice Inspection Program Plant

ML12115A069
Person / Time
Site:	Robinson
Issue date:	05/04/2012
From:	Billoch-Colon A Plant Licensing Branch II
To:	William Gideon Carolina Power & Light Co
References
TAC ME8256, TAC ME8257
Download: ML12115A069 (4)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 4,2012 Mr. William R. Gideon, Vice President Carolina Power & Light Company H. B. Robinson Steam Electric Plant, 3581 West Entrance Road Hartsville, South Carolina 29550 SUB.JECT: H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO.2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO RELIEF REQUEST (RR)-5 AND RR-6 FOR THE FIFTH 10-YEAR INTERVAL INSERVICE INSPECTION PROGRAM PLAN (TAC NOS. ME8256 AND ME8257)

Dear Mr. Gideon:

By letter to the U.S. Nuclear Regulatory Commission (NRC) dated March 14, 2012 (Agencywide Documents Access and Management System Accession No. ML12082A009), Carolina Power &

Light Company, doing business as Progress Energy Carolinas, Inc., submitted Relief Request (RR)-5 and RR-6 for the Inservice Inspection Program Plan for the Fifth 10-Year Interval for the H. B. Robinson Steam Electric Plant, Unit No.2.

The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on April 10, 2012, it was agreed that you would provide a response by May 11,2012.

The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC's goal of efficient and effective use of staff resources.

Please contact me at requested (301) 415-3302 if you have any questions.

Sincerely, Araceli Billoch Colon, Project Manager Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-261

Enclosure:

Request for Additional Information cc w/encl: Distribution via ListServ

REQUEST FOR ADDITIONAL INFORMATION (RAI)

REGARDING H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO.2 INSERVICE INSPECTION PROGRAM PLAN FOR THE FIFTH 10-YEAR INTERVAL DOCKET NO. 50-261 By letter to the Nuclear Regulatory Commission (NRC) dated March 14,2012 (Agencywide Documents Access and Management System Accession No. ML12082A009), Carolina Power &

Light Company, doing business as Progress Energy Carolinas, Inc., submitted the Inservice Inspection (lSI) Program Plan for the Fifth 10-Year Interval for the H. B. Robinson Steam Electric Plant, Unit NO.2. Relief Request (RR)-05 in the subject lSI Program is related to the inspection of bolted connections when contacting with borated water. RR-06 is related to the surface examination of reactor vessel dissimilar metal welds. To complete the review of RR-05 and RR-06, the NRC staff has determined that additional information is needed.

RR-05, "Borated Bolted Connections" RAI 1: Under the heading "Requested Relief," the licensee requests relief from the American Society of Mechanical Engineers Code (ASME Code),Section XI, 2007 edition with 2008 Addenda, IWA-5250: (a) Confirm that the relief is requested for IWA-5250(a)(2) only, not other parts of Subarticle IWA-5250; (b) Provide specific ASME Code,Section XI, subarticles that contain the definition, personnel qualification, and examination procedures of the proposed VT-1 visual examination that will be used in lieu of VT-3 as referenced in IWA-5250(a)(2).

RA12: Discuss whether the proposed VT-1 examination is applicable to bolting that is not part of a borated piping system, but is in contact with borated water due to leakage from borated piping (e.g., borated water from a pipe leak onto the bolting in a non borated piping system).

Discuss whether RR-05 is applicable to this scenario. If yes, the bolting in the nonborated piping system would be removed and examined even though it is not in contact with borated water in normal operating conditions. If RR-05 is not applicable to this scenario, provide justification.

RA13: Under heading "Basis for Relief," the licensee stated that VT-1 visual examination procedures are considered more stringent than those associated with the VT-3 visual examination: (a) For comparison purposes, confirm that the requirements for VT-1 and VT-3 examinations are based on the 2007 Edition with 2008 Addenda of the ASME Code,Section XI, IWA-2211 and IWA-2213, respectively. (b) Discuss whether and how RR-05, if approved, would be incorporated into the plant-specific Boric Acid Program (EGR-NGGC-0207).

RAI 4: Under the heading, "Proposed Alternative Examinations," the wording in the proposed requirement is not consistent with the statements in IWA-5250(a)(2), given VT -3 is replaced with VT-1. Some of the requirements in IWA-5250(a)(2), such as "the bolt selected shall be the one closest to the source of leakage" is not in the proposed alternative. Justify why the proposed alternative is not consistent with IWA-5250(a)(2), given that VT-3 is replaced with VT -1.

Enclosure

-2 RR-06, "Surface Examination of Reactor Vessel Dissimilar Metal Welds" RAI 1: The staff noticed that RR-6 reported multiple indications found in the subject dissimilar metal welds. Clarify whether each indication is inside diameter or outside diameter surface connected.

May 4, 2012 Mr. William R. Gideon, Vice President Carolina Power & Light Company H. B. Robinson Steam Electric Plant, 3581 West Entrance Road Hartsville, South Carolina 29550

SUBJECT:

H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO.2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO RELIEF REQUEST (RR)-5AND RR-6 FOR THE FIFTH 10-YEAR INTERVAL INSERVICE INSPECTION PROGRAM PLAN (TAC NOS. ME8256 AND ME8257)

Dear Mr. Gideon:

By letter to the U.S. Nuclear Regulatory Commission (NRC) dated March 14, 2012 (Agencywide Documents Access and Management System Accession No. ML12082A009), Carolina Power &

Light Company, doing business as Progress Energy Carolinas, Inc., submitted Relief Request (RR)-5 and RR-6 for the Inservice Inspection Program Plan for the Fifth 10-Year Interval for the H. B. Robinson Steam Electric Plant, Unit No.2.

The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on April 10, 2012, it was agreed that you would provide a response by May 11, 2012.

The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC's goal of efficient and effective use of staff resources.

Please contact me at requested (301) 415-3302 if you have any questions.

Sincerely, IRA!

Araceli Billoch Colon, Project Manager Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-261

Enclosure:

Request for Additional Information cc w/encl: Distribution via ListServ DISTRIBUTION:

PUBLIC Lp12-2 RlF RidsNrrDorlLpl2-2 RidsOgcRp RidsNrrLABClayton RidsAcrsAcnw_MailCTR RidsNrrPMRobinson RidsRgn2MailCenter ADAMS Accession No' ML12115A069

<<

• Memo Date OFFICE LPL2-2/PM LPL2-2/LA DE/EPTB/BC* LPL2-2/BC LPL2-2/PM NAME ABillochCol6n BClayton DAiley* DBroaddus ABiliochCol6n (EBrown for)

DATE 04/24112 04/24/12 04/19/12 05/04112 05/04/12 OFFICIAL RECORD COpy