ML20147D756
| ML20147D756 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/01/1988 |
| From: | Gridley R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| TAC-00235, TAC-235, NUDOCS 8803040147 | |
| Download: ML20147D756 (2) | |
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TENNESSEE VALLEY AUTHORITY CHATTANOOG A. TENNESSEE 374ol
-5N 157B Lookout Place MAR ORg88 U.S. Nuclear Regulatory Commission ATTN: -Document Control Desk
-Washington, D.C.
20555 Gentlemen:
In the Matter of
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Docket Nos. 50-259
~ 4 Tennessee Valley Authority
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50-260
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50-296 BROWNS FERRY NUCLEAR PLANT (BFN) - EXTENSION OF TEN-YEAR INSERVICE INSPECTION INTERVAL The purpose of this letter is to inform the NRC staff of an extension of the ten-year interval for the. Inservice Inspection and the System Pressure Test Programs. The current interval will expire on March 1, 1988 as approved in the NRC letter dated June 20, 1986. The extension will begin the second ten-year interval one year after the next startup of each unit respectively.
The applicable regulation, 10 CFR 50.55 a(g), requires that American Society of Mechanical Engineers (ASME) Code components of. a water-cooled nuclear power facility meet the requirements of-ASME Section XI, Rules for Inservice Inspection (ISI), of nuclear power plant components. In addition, a subsection of this regulation requires the ISI program which is updated every 10 years to meet the requirements of the latest approved applicable edition and addenda of section XI in effect 12 months before the start of the next 120-month inspection interval' The code also provides for an extension of the interval for extended periods of downtime greater than one year.
BFN has experienced approximately four years of out-of-service time which satisfies the code for the allowed extension of the inspection interval.
The first ten-year interval is being extended to one year after the next startup of each unit.
BFN will complete the first ten-year interval ISI examinations and pressure tests before each unit startup from the current outages. The year following startup will allow time for adoption of a new code, program preparation, preparation of implementing instructions, program submittal to NRC, and review and approval by NRC.
TVA reserves the right to extend the first interval should current requests for waivers, dated June 4, 1987, not be approved by NRC before the close of l
the interval.
Such an extension would be made within the criteria of ASME section XI.
8803040147 880301 PJR ADOCK 05000259 gj9
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An Equal Opportunity Employer
0 U.S. Nuclear Regulatory Commission R 01 M-As demonstrated above, the programs for the first ten-year. interval will be complete before startup of each unit respectively.
This extension is allowed "by the ASME section XI code.
Very truly yours, TENNESSEE V LLEY AUTHORITY e
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ridley, D ector Nuclear Licensing and Regulatory Affairs cc:
Mr. K. P.
Barr, Acting Assistant Director for Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. G. G. Zech, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Maryland 20852 Browns Ferry Resident Inspector Browns Ferry Nuclear Plant Route 12 P.O. Box 637 Athens, Alabama 35611 b