ML12250A065

Request for Additional Information Related to Changes Regarding Technical Specification (TS) 3.1.4 Rod Group Alignment Limits and TS 3.1.7 Rod Position Indicator

ML12250A065
Person / Time
Site:	Robinson
Issue date:	09/18/2012
From:	Billoch-Colon A Plant Licensing Branch II
To:	William Gideon Carolina Power & Light Co
Billoch A
References
TAC ME8844
Download: ML12250A065 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 September 18, 2012 Mr. William R. Gideon, Vice President Carolina Power & Light Company H.B. Robinson Steam Electric Plant, Unit 2 3581 West Entrance Road Hartsville, South Carolina 29550

SUBJECT:

H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO.2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO CHANGES REGARDING TECHNICAL SPECIFICATION (TS) 3.1.4 ROD GROUP ALIGNMENT LIMITS AND TS 3.1.7 ROD POSITION INDICATION (TAC NO. ME8844)

Dear Mr. Gideon:

By letter to the U.S. Nuclear Regulatory Commission (NRC) dated June 8,2012 (Agencywide Documents Access and Management System Accession No. ML12172A260), Carolina Power &

Light Company (the licensee), doing business as Progress Energy Carolinas, Inc., submitted a license amendment request for Technical Specifications (TS) changes regarding TS Section 3.1.4 "Rod Group Alignment Limits," and TS Section 3.1.7 "Rod Position Indication" 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 September 11, 2012, it was agreed that you would provide a response 45 days from the date of this letter.

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 (301) 415-3302 if you have any questions.

Sincerely,

~1,~~

Araceli Billoch Col6n, 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 I NFORMA TION REGARDING H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT 2 LICENSE AMENDMENT REQUEST REGARDING TECHNICAL SPECIFICATION (TS) 3.1.4 ROD GROUP ALIGNMENT LIMITS AND TS 3.1.7 ROD POSITION INDICATION DOCKET NO. 50-261 By letter to the U.S. Nuclear Regulatory Commission (NRC) dated June 8, 2012 (Agencywide Documents Access and Management System Accession No. ML12172A260), Carolina Power &

Light Company (the licensee), doing business as Progress Energy Carolinas, Inc., submitted a license amendment request for Technical Specifications (TS) changes regarding TS Section 3.1.4 "Rod Group Alignment Limits," and TS Section 3.1.7 "Rod Position Indication" for the H. B.

Robinson Steam Electric Plant, Unit NO.2. The NRC staff has been reviewing the submittal and has determined that additional information is needed to complete its review.

Page 5 of the enclosure to the licensee's June 8, 2012, letter indicated that during the "soak-time" periods, an individual rod position indicator (RPI) difference from the demand position indication could be a legitimate indication of a misaligned rod.

Discuss the plant operating procedures that provide procedural guidance of diagnosing the actual malfunction of the control rod or RPI system, and show that the procedural guidance is sufficient for operators to differentiate between an actual malfunction of rod control or RPI system, and discuss the RPI differences from demand position indication attributed to thermal instabilities during the "soak-time" periods.

Enclosure

'.. ML12250A065 *Memo Dated

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