ML20072M762

Requests Exemption from 2-yr Test Interval Requirements of 10CFR50,App J,Extending Testing of Encl List of Isolation Valves to 830506.Unit Scheduled to Shut Down for Cycle 5 Refueling Outage on 830415.Approval Requested by 830408

ML20072M762
Person / Time
Site:	Browns Ferry
Issue date:	03/29/1983
From:	Mills L TENNESSEE VALLEY AUTHORITY
To:	Harold Denton Office of Nuclear Reactor Regulation
References
NUDOCS 8304010364
Download: ML20072M762 (3)

Text

e e-TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 374ot 400 Chestnut Street Tower II March 29, 1983 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Denton:

In the Matter of the

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Docket No. 50-259 Tennessee Valley Authority

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As discussed with R. J. Clark of your staff, we are hereby requesting an exemption from the test interval requirements of 10 CFR 50, Appendix J for Browns Ferry unit 1.

Unit 1 is currently scheduled to shut down for the cycle 5 refueling outage on April 15, 1983 As shown on the enclosed list, a number of isolation valves are required to be tested by April 11 or April 12, 1983 Therefore, the scheduled shutdown date of April 15 would cause us to exceed the maximum two-year test interval specified in Appendix J.

We are requesting an extension to the Appendix J two-year test interval for the enclosed list of valves from April 11 until May 6, 1983 This is the date expiration begins on the next series of valves and will allow unit 1 operation to continue past April 15, 1983 in the event of unscheduled delays in the shutdown date. This extension request is necessitated by the extemely long torus outages (unit 1, cycle 4-174 days; unit 2, cycle 5-234 days) and the resulting changes of cycle startup and end dates to avoid simultaneous multi-unit outages.

We request approval of this exemption request as soon as possible, but no later than April 8, 1983 Your cooperation in this matter is greatly appreciated.

Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Man ger Nuclear Licensing m t y f 1983 Notary Public

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' Mr. Harold R. Denton March 29, 1983 cc (Enclosure):

U.S. Nuclear Regulatory Commission Region II ATTN: James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303 Mr. R. J. Clark Browns Ferry Project Manager U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20814

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ENCLOSURE BROWNS FERRY NUCLEAR PLANT UNIT 1 PRIMARY CONTAININENT ISOLATION VALVES REQUIRING EXTENSION OF TEST INTERVAL Valve Description Expiration Date 2-1143 Demin Water 4/11/83 12-738 Aux Boiler to RCIC 4/12/83 12-741 Aux Boiler to RCIC 4/12/83 71-32 RCIC Vacuum Pump Disch 4/12/83 71-592 RCIC Vacuum Pump Disch 4/12/83 73-24 HPCI Turbine Exhaust Drain 4/12/83 73-609 HCPI Turbine Exhaust Drain 4/12/83 74-57 RHR SC Spray 4/11/83 74-58 RHR SC Spray 4/11/83 74-71 RHR SC Spray 4/11/83

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