ML021620582

Request for Additional Information Regarding Request for Relief from ASME Ultrasonic Examination of RPV Nozzle Inner Radius

ML021620582
Person / Time
Site:	Turkey Point
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 Attorney General Florida Power & Light Company Department of Legal Affairs P.O. Box 14000 The Capitol Juno Beach, FL 33408-0420 Tallahassee, Florida 32304 Mr. John P. McElwain, Site Vice President T. O. Jones, Plant General Manager Turkey Point Nuclear Plant Turkey Point Nuclear Plant Florida Power and Light Company Florida Power and Light Company 9760 SW. 344th Street 9760 SW. 344th Street Florida City, FL 33035 Florida City, FL 33035 County Manager Walter Parker Miami-Dade County Licensing Manager 111 NW 1 Street, 29th Floor Turkey Point Nuclear Plant Miami, Florida 33128 9760 SW 344th Street Florida City, FL 33035 Senior Resident Inspector Turkey Point Nuclear Plant Mr. Don Mothena U.S. Nuclear Regulatory Commission Manager, Nuclear Plant Support Services 9762 SW. 344th Street P.O. Box 14000 Florida City, Florida 33035 Juno Beach, FL 33408-0420 Mr. William A. Passetti, Chief Mr. Rajiv S. Kundalkar Department of Health Vice President - Nuclear Engineering Bureau of Radiation Control Florida Power & Light Company 2020 Capital Circle, SE, Bin #C21 P.O. Box 14000 Tallahassee, Florida 32399-1741 Juno Beach, FL 33408-0420 Mr. Craig Fugate, Director Division of Emergency Preparedness Department of Community Affairs 2740 Centerview Drive Tallahassee, Florida 32399-2100