ML20080S610

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Requests Relief from Schedular Requirements of 830325 Confirmatory Orders to Install Redundant in-containment Radiation Monitors,Per NUREG-0737,Item II.F.1.3 Requirement. Mod Will Be Completed Before Startup in Cycle 7
ML20080S610
Person / Time
Site: Browns Ferry Tennessee Valley Authority icon.png
Issue date: 10/12/1983
From: Kammer D
TENNESSEE VALLEY AUTHORITY
To: Harold Denton
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, TASK-2.F.1, TASK-TM NUDOCS 8310180422
Download: ML20080S610 (2)


Text

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  • TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 374ol 400 Chestnut Street Tower II October 12, 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 Valloy Authority

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As you know, we are presently under confirmatory orders to install redundant in-containment radiation monitors at Browns Ferry Nuclear Plant that meet the requirements of NUREG-0737, Item II.F.1.3 These orders which were issued on March 25, 1983, confirm our commitment to install-these monitors on unit 1 before startup in cycle 6 which is now scheduled for November 21, 1983 Based on this requirement, we submitted technical specifications on July 13, 1983 as part of the unit 1 reload package that included Limiting Conditions for Operation of 30- and 7-day shutdown with one or two detectors inoperable, respectively.

As di.scussed with your staff, it has come to our attention that the design of necessary cable connections to the drywell penetration for the installation of this equipment is inadequate and therefore, the operability and full environmental qualification of the installed system is questionable. Revision of the design and installation of the equipment to meet the requirements within the time remaining in this outage is not possible.

Therefore, we intend to withdraw the associated technical specifications from the unit 1 reload package and we request that relief from the schedular requirements of the subject order be granted. We intend to complete this modification before startup in cycle 7

.We will complete installation (except for full environmental qualification) of this new system before cycle 6 startup and also the existing containment radiation monitors will remain in service.

p Very truly yours, l'

TENNESSEE VALLEY AUTHORITY DS W D. S. Kammer Nuclear Engineer Subscribed d sworn o before i

methis/O day of M,1983 E>

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Notary Public Q4

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My Commission Expires / "

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cc: See page 2 IT' 1 8310180422 831012 l D

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KDR ADOCK 05000259 An Equal Opr,ortunity Emotoyer L

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. Mr. Harold R. Denton October 12, 1983 cc:

U.S. Nuclear Regulatory Commissior.

Region II ATTN: James P. O'Reilly, Regional Administrator 101 Marietta Street, Suite 2900 Atlanta, Georgia 30303 Mr. R. J. Clark Browns Ferry Project Manager U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20814 0