ML20211E889

Forwards Ga Technologies,Inc 860918 Part 21 Rept Re Triga Reactors from Vendor.Info Provided for Evaluation of Potential Defect Re Reactor for Appropriate Corrective Action

ML20211E889
Person / Time
Site:	Kansas State University
Issue date:	02/17/1987
From:	Gagliardo J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Faw R KANSAS STATE UNIV., MANHATTAN, KS
References
REF-PT21-87-040-000 PT21-87-040-000, PT21-87-40, NUDOCS 8702240432
Download: ML20211E889 (1)

Text

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eD, FEB 171987 In Reply Refer To:

Docket: 50-188 Kansas State University Department of Nuclear Engineering ATTN: Dr. R. E. Faw, Director Nuclear Reactor Facility Manhattan, Kansas 66505 Gentlemen:

This letter is to transmit a 10 CFR 21 Report from GA Technologies.

On February 9,1987, Mr. M. E. Skow of this office discussed a letter concerning TRIGA reactors from GA Technologies, Inc. with Dr. R. E. Faw. The letter, copy enclosed, was sent to the NRC in accordance with 10 CFR Part 21, 21.21.

This information is provided so that you may evaluate this potential defect as it relates to your reactor for appropriate corrective action. No specific response to the NRC is required.

Sincerely, OrfcinM s b ,M ay J.C. gor,Uaida J. E. Gagliardo, Chief Reactor Projects Branch

Enclosure:

Letter - GA Technologies Inc.

dated September 18, 1986 bec:

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DRSP Section Chief /A M. E. Skow i

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SAN 4DE,GO (619) 5 3000 CAtlFORNIA 92138 September 18, 1986 Mr. Richard De Young, Director Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Notification Required by 10CFR21 GA Technologies Inc. GIGA Reacte ,

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Dear Mr. De Young:

This notification concerns a defect in equipment supplied by GA 10CFR21.

Technologies Inc. and is provided in compliance with Verbal notification was made to your Walnut Creek Office on September 15, 1986. The following information is provided in the format of 10 CFR21, 21.21(b)(3).

(i) Richard A. Dean GA Technologies Inc.

P.O. Box 85608 San Diego, CA 92138__

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(ii) University of Illinois 216 Nuclear Engineering Laborato bana, Illinois 61801 s

University of California Irvine Irvine, California (iii) GA Technologies Inc.

TRIGA Reactor Division P.O. Box 85608 San Diego, CA 92138 *

(iv) The control systems on these TRIGA reactors have an interlock that is supposed to insure all control rods are in the down position before you can apply air to the fast transient rod in the steady-state mode.

This interlock can be defeated when the shim or safety rods are moved to their full "up" positio'n.

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k (v) GA obtained this information by telephone from Craig Pohlod of the University of Illinois on September 8, 1986.

(vi) There is one defective interlock in each of the above reactors.

(vii) Any corrective action will be taken by the University of Illinois and the University of California at  :

Irvine.

(viii) GA Technologies will recommend a fix for this problem to each of the two reactor facilities.

If you wish additional information, please call Mr. Robert H. Chesworth at (619).455-3580.

Very truly yours, chard A. Dean Senior Vice President Reactor Programs cc: Mr. Robert Engelkon Regional Administrator U.S. Nuclear Regulatory Commission 1900 North California Blvd.

Walnut Creek, CA 94596 t

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