ML20117B814

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Part 21 Rept Re Ruskin Fire Dampers Installed at Facility. Initially Reported on 850426.Fire Dampers Found in Discrepant Condition Will Be Reworked in Order to Assure Integrity & Proper Functioning
ML20117B814
Person / Time
Site: Wolf Creek Wolf Creek Nuclear Operating Corporation icon.png
Issue date: 05/01/1985
From: Koester G
KANSAS GAS & ELECTRIC CO.
To: Denise R
NRC - WOLF CREEK TASK FORCE
References
REF-PT21-85, REF-PT21-85-232-000 KMLNRC-85-100, PT21-85-232, PT21-85-232-000, NUDOCS 8505090248
Download: ML20117B814 (2)


Text

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KANSAS GAS AND ELECTRIC COMPANY THE ELECTAC COMPANY OLENN L. NOESTER

= = .=~,. = aa May 1, 1985 Mr. R.P. Denise, Director Wolf Creek Task Force /

U.S.#uclear N Regulatory Comissim Region IV MAY 6125 611 Ryan Plaza Drive, Suite 1000 . f)

Arlington, Texas 76011 KMLNRC 85-100 Re: Docket No. EfN 50-482 Subj: Potential 10CFR21 Notification - Concerning Ruskin Fire Danpers

Dear .vr . Denise:

This letter provides notification pursuant to 10CFR21.21 concerning Ruskin Pire Danpers installed at Wolf Creek Generating Station (NCGS) . This matter was initially reported by Mr. H. K.

Chernoff of Kansas Gas ar.d Electric Conpany (KG&E) to Mr. L. E.

Martin of the M2 clear Regulatory Comission, Region IV, on April 26, 1985.

The subject fire danpers were acnufactured by Ruskin Manufacturing Co., of Grandview, Missouri. Some danpers were found to have less than the designed clearance between the fire danper frame and the penetration sleeve. During a fire, thermal expansion of a fire danper, without the design clearances, could result in buckling of the fire danper frame. This could potentially affect the integrity of the danper.

A reinspection of the affected Ruskin Fire Danpers is currently being performed. Those danpers found in a discrepant condition will be reworked in order to assure the integrity and proper functioning of the fire danpers.

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P Mr. R. P. Denise May 1, 1985 KMUEC 85-100 Further information on this subject will be provided in Licensee Event Report 85-017. If you have any questions concerning this matter, please contact me or Mr. Otto Maynard of my staff.

Yours very truly,

t. Glenn L. Koester Vice President - Nuclear GE: dab xc: PO'Connor (2)

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