ML021620582

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Request for Additional Information Regarding Request for Relief from ASME Ultrasonic Examination of RPV Nozzle Inner Radius
ML021620582
Person / Time
Site: Turkey Point  
(DPR-031, DPR-041)
Issue date: 06/11/2002
From: Ellen Brown
NRC/NRR/DLPM/LPD2
To: Stall J
Florida Power & Light Co
Brown Eva
References
TAC MB5031, TAC MB5032
Download: ML021620582 (5)


Text

June 11, 2002 Mr. J. A. Stall Senior Vice President, Nuclear and Chief Nuclear Officer Florida Power and Light Company P.O. Box 14000 Juno Beach, Florida 33408-0420

SUBJECT:

TURKEY POINT PLANT, UNITS 3 AND 4 - REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED ALTERNATIVE EXAMINATION FOR REACTOR PRESSURE VESSEL NOZZLE INNER RADIUS (TAC NOS.

MB5031 AND MB5032)

Dear Mr. Stall:

By letter dated May 6, 2002 Florida Power and Light Company requested relief from the ultrasonic examination requirements of the American Society of Mechanical Engineers Code,Section XI, Table IWB-2500-1, Examination Category B-D, Item B3.100. The U.S. Nuclear Regulatory Commission staff has reviewed your submittal and finds that a response to the enclosed request for additional information is needed before we can complete the review.

This request was discussed with your staff on May 30 and 31, 2002, and it was agreed that a response would be provided within 30 days of receipt of this letter.

If you have any questions, please contact me at (301) 415-2315.

Sincerely,

/RA/

Eva A. Brown, Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-250 and 50-251

Enclosure:

Request for Additional Information cc w/encl: See next page

ML021620582 OFFICE PDII-2/PM PDII-2/LA EMCB/SC PDII-2/SC(A)

NAME EBrown BClayton TChan KJabbour DATE 6/04/2002 6/04/2002 6/05/2002 6/06/2002

REQUEST FOR ADDITIONAL INFORMATION ALTERNATIVE EXAMINATION FOR REACTOR PRESSURE VESSEL NOZZLE INNER RADIUS TURKEY POINT PLANT, UNITS 3 AND 4 DOCKET NOS. 50-250 AND 50-251

1) In Section II, Examination Requirements, provide the specific systems and functions for each of the components listed in the table.
2) Describe the system you will use to perform the visual examination, include a description of the magnification and resolution capability of the proposed system, and discuss how the examination will be performed (direct, remote, enhanced, etc...). This discussion should include the criteria that will be applied to assure an equivalent resolution to ultrasonic testing.
3) Provide a comparison of the benefits of your proposed examination method to that of the American Society of Mechanical EngineersSection XI code required examination, including equivalency of inspection surface coverage.
4) Describe the acceptance criteria that would be used for crack-like surface flaws.
5) Provide a table describing to what extent these nozzles have been previously examined, include nozzle size, date of prior examination, percent coverage achieved, and type of nondestructive examination conducted. Include a discussion of the results and the percentage coverage achieved.
6) Provide the specific dates for the current inservice inspection intervals for Turkey Point Units 3 and 4.
7) Discuss whether significant thermal cycling during operation has been experienced by the subject components at either unit.
8) Discuss how you came to the conclusion that 100 percent of the surface area will be examined and provide sketches and/or other documentation that supports your conclusion.

Mr. J. A. Stall TURKEY POINT PLANT Florida Power and Light Company cc:

M. S. Ross, Attorney Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. John P. McElwain, Site Vice President Turkey Point Nuclear Plant Florida Power and Light Company 9760 SW. 344th Street Florida City, FL 33035 County Manager Miami-Dade County 111 NW 1 Street, 29th Floor Miami, Florida 33128 Senior Resident Inspector Turkey Point Nuclear Plant U.S. Nuclear Regulatory Commission 9762 SW. 344th Street Florida City, Florida 33035 Mr. William A. Passetti, Chief Department of Health Bureau of Radiation Control 2020 Capital Circle, SE, Bin #C21 Tallahassee, Florida 32399-1741 Mr. Craig Fugate, Director Division of Emergency Preparedness Department of Community Affairs 2740 Centerview Drive Tallahassee, Florida 32399-2100 Attorney General Department of Legal Affairs The Capitol Tallahassee, Florida 32304 T. O. Jones, Plant General Manager Turkey Point Nuclear Plant Florida Power and Light Company 9760 SW. 344th Street Florida City, FL 33035 Walter Parker Licensing Manager Turkey Point Nuclear Plant 9760 SW 344th Street Florida City, FL 33035 Mr. Don Mothena Manager, Nuclear Plant Support Services P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Rajiv S. Kundalkar Vice President - Nuclear Engineering Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420