ML18036A510

Forwards Safety Evaluation Accepting Licensee Revised Small Bore Piping & Seismic Qualification of Instrument Tubing Programs

ML18036A510
Person / Time
Site:	Browns Ferry
Issue date:	02/04/1992
From:	Williams J Office of Nuclear Reactor Regulation
To:	Nauman D TENNESSEE VALLEY AUTHORITY
Shared Package
ML18036A511	List: ML18036A510 ML18036A512
References
TAC-M80012, TAC-M80013, TAC-M80035, TAC-M80036, NUDOCS 9202100455
Download: ML18036A510 (6)

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Docket Nos.

50-259 and 50-296 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 Febr uary 4, 1992 Hr.

Dan A. Nauman Senior Vice President, Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Place Chattanooga, Tennessee 37402-2801

SUBJECT:

SAFETY EVALUATION OF SMALL BORE PIPING AND SEISMIC QUALIFICATION OF INSTRUMENT TUBING PROGRAMS FOR BROWNS FERRY NUCLEAR PLANT, UNITS 1

AND 3 (TAC NOS.

H80012, M80013,

H80035, AND H80036)

References:

1.

E.

G. Wallace, TVA, to NRC, "Browns Ferry Nuclear Plant (BFN), Action Plan to Disposition Concerns Related to Units 1 and 3 Small Bore Piping," letter dated February 27, 1991.

2.

E.

G. Wallace, TVA to NRC, "Browns Ferry Nuclear Plant, (BFN) - Action Plan to Disposition Concerns Regarding the Seismic gualification of Units 1 and 3 Instrument Tubing,"

letter dated February 27, 1991.

3.

0. J. Zeringue, TVA, to NRC, "Browns Ferry Nuclear Plant (BFN), Small Bore Piping Program,

Tubing, and Conduit Support Plans for Units 1 and 3

Additional Information,"

letter dated December 12, 1991.

In References 1 and 2, the Tennessee Valley Authority (TVA) provided its proposed programs to resolve problems with small bore piping and the seismic qualification of instrument tubing for the Browns Ferry Nuclear Plant, Units 1

and 3.

Following meetings and telephone discussions with the staff, TVA provided additional information on these programs in Reference 3.

The NRC staff has reviewed these

programs, and has provided the enclosed safety evaluation.

The staff finds that these programs form an acceptable basis for restart of Browns Ferry Units 1 and 3.

However, note that if any new attributes are identified by the planned rigorous analysis of a sample of the components, or by some other means, during the implementation of these

programs, the staff expects TVA to evaluate the seismic Class I small bore 9202100455 920204

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Dan A. Nauman piping and instrument tubing populations in all three Browns Ferry units-for these new attributes.

Please inform the staff if new attributes are identi-fied during the Browns Ferry Units 1

and 3 recovery program.

Please contact me at (301)504-1470 if you have any questions on this subject.

Sincerely, Original signed by

Enclosure:

Safety Evaluation cc: w/enclosure:

See next page Joseph F. Williams, Project Hanager Project Directorate II-4 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation OFC PD II-4LA PD II-4PH PD II-4PH PD II-4PD NAHE NSander413 JWilliam TRoss FHebdon DATE 92

~

92 S

9~

CC:

Mr. Marvin Runyon, Chairman Tennessee Valley Authority ET 12A 400 West Summit Hill Drive Knoxville, Tennessee 37902 Mr. John B. Waters, Director Tennessee Valley Authority ET 12A 400 West Summit Hill Drive Knoxville, Tennessee 37902 Mr.

W.

H. Kennoy, Director Tennessee Valley Authority ET 12A 400 West Summit Hill Drive Knoxville, Tennessee 37902 Mr.

W. F. Willis Senior Executive Officer ET 12B 400 West Summit Hill Drive Knoxville, Tennessee 37902 General Counsel Tennessee Valley Authority ET 11H 400 West Summit Hill Drive Knoxville, Tennessee 37902 Mr. Dwight Nunn Vice President, Nuclear Projects Tennessee Valley Authority 3B Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801 Dr. Mark 0. Medford Vice President, Nuclear Assurance Licensing and Fuels Tennessee Valley Authority 3B Lookout Place Chattanooga, Tennessee 37402-2801 Mr. Mark J.

Burzynski

Manager, Nuclear Licensing and Regulatory Affairs Tennessee Valley Authority 3B Lookout Place Chattanooga, Tennessee 37402-2801 Mr. 0. J. Zeringue, Site Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P. 0.

Box 2000

Decatur, Alabama 35609 Mr. R.

R. Baron, Site Licensing Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P. 0.

Box 2000

Decatur, Alabama 35609 Mr. J.

A. Scalice, Plant Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P. 0.

Box 2000

Decatur, Alabama 35609

Chairman, Limestone County Commission P. 0.

Box 188

Athens, Alabama 35611 Claude Earl

Fox, M.D.

State Health Officer State Department of Public Health State Office Building Montgomery, Alabama 36130 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W.

Atlanta, Georgia 30323 Mr. Charles Patterson Senior Resident Inspector Browns Ferry Nuclear Plant U.S. Nuclear Regulatory Commission Route 12, Box 637

Athens, Alabama 35611 Tennessee Valley Autho}ity Rockville Office 11921 Rockville Pike Suite 402 Rockville, Maryland 20852

Distribution

.-Docket:,F-i-1 e==,

NRC PDR Local PDR S.

Varga G. Lainas F.

Hebdon B. Wilson P. Kellogg C. Patterson L. Reyes T.

Ross J. Williams M. Sanders OGC H. HcBrearty ACRS (10)

BFN Rdg. File 14-E-4 14-H-3 RII RII RII RII

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