ML12361A054

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Request for Additional Information Regarding the 180-Days Steam Generator Report from the Spring 2012 Refueling Outage
ML12361A054
Person / Time
Site: Calvert Cliffs Constellation icon.png
Issue date: 01/04/2013
From: Nadiyah Morgan
Plant Licensing Branch 1
To: George Gellrich
Calvert Cliffs
Morgan N NRR/DORL/LPL1-1 301-415-1016
References
TAC ME9439
Download: ML12361A054 (3)


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 January 4, 2013 Mr. George H. Gellrich, Vice President Calvert Cliffs Nuclear Power Plant, LLC Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702 SUB..IECT:

CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NO.1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING THE 180-DAY STEAM GENERATOR REPORT FROM THE SPRING 2012 REFUELING OUTAGE (TAC NO. ME9439)

Dear Mr. Gellrich:

By letter dated August 7, 2012, Calvert Cliffs Nuclear Power Plant, LLC, the licensee, submitted the results of the steam generator tube inspections conducted at the Calvert Cliffs Nuclear Power Plant, Unit No.1 during the spring 2012 refueling outage.

The Nuclear Regulatory Commission (NRC) staff is reviewing the submittal and has determined that additional information is needed to complete its review. The specific questions are found in the enclosed request for additional information (RAI). The NRC staff is requesting a response to the RAI within 30 days of the date of this letter.

If you have any questions regarding this issue, please contact me at (301) 415-1016.

Na~s. Morgan, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-317

Enclosure:

RAI cc w/encl: Distribution via Listserv

REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION REGARDING SPRING 2012 STEAM GENERATOR TUBE INSPECTION RESULTS CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NO.1 DOCKET NO. 50-317 By letter dated August, 7, 2012, (Agencywide Documents Access and Management System Accession Number ML12221A225), Calvert Cliffs Nuclear Power Plant, LLC, the licensee, submitted the results of the steam generator (SG) tube inspections conducted at the Calvert Cliffs Nuclear Power Plant, Unit No.1 (Calvert Cliffs) during the spring 2012 refueling outage.

In order to complete its review, the Nuclear Regulatory Commission staff requests the following information:

1. Please provide the results of the tube plug and secondary side inspections performed.
2. In the Calvert Cliffs 2008 180-day SG report (ADAMS Accession Number ML082130158), a total of 324 fan bar wear (FBW) indications were reported. Similarly, for the spring 2012 outage, a total of 465 FBW indications were reported, with 143 newly reported FBW indications for the outage. When adding together the total number of FBW indications reported from the previous inspection (324) with the newly reported FBW indications from the spring 2012 inspection (143), the total FBW indications for Calvert Cliffs would be 467.

Please provide clarification on the total number of FBW indications identified for the Calvert Cliffs SGs.

Enclosure

January 4, 2013 Mr. George H. Gellrich, Vice President Calvert Cliffs Nuclear Power Plant, LLC Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702

SUBJECT:

CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NO.1 - REQUEST FOR ADDITIONAL INFORMATION REGARDING THE 180-DAY STEAM GENERATOR REPORT FROM THE SPRING 2012 REFUELING OUTAGE (ME9439)

Dear Mr. Gellrich:

By letter dated August 7, 2012, Calvert Cliffs Nuclear Power Plant, LLC, the licensee, submitted the results of the steam generator tube inspections conducted at the Calvert Cliffs Nuclear Power Plant, Unit No.1 during the spring 2012 refueling outage.

The Nuclear Regulatory Commission (NRC) staff is reviewing the submittal and has determined that additional information is needed to complete its review. The specific questions are found in the enclosed request for additional information (RAI). The NRC staff is requesting a response to the RAI within 30 days of the date of this letter.

If you have any questions regarding this issue, please contact me at (301) 415-1016.

Sincerely, IRAI Nadiyah S. Morgan, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-317

Enclosure:

RAI cc w/encl: Distribution via Listserv DISTRI BUTION:

PUBLIC RidsNrrLAKGoldstein RidsAcrsAcnwMailCenter LPLI-1 RtF RidsNrrPMCalvertCliffs RidsOgcMailCenter RidsNrrDorlDpr RidsNrrDeCsgb RidsRgn 1 MailCenter RidsNrrDorlLpll-1 CHunt, NRR ADAMS Accession No.: ML12361A054

  • See memo dated December 7,2012
    • via email OFFICE NAME DORULPLI-1/PM DORULPLI-1/LA ** DE/ESGB/BC DORULPLI-1/BC KGoldstein (ABaxter NMorgan for)

GKulsea*

GWilson


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