ML20008G134

Part 21 Rept Re Missile Penetration Analysis,Initially Reported on 810605.Penetration of Subj Housings by Missiles Cannot Be Determined as Substantial Safety Hazard & Classification Best Decided by Utils.Utils Notified

ML20008G134
Person / Time
Site:	Beaver Valley, Perry, Columbia, Waterford, Clinton, 05000442, Washington Public Power Supply System
Issue date:	06/10/1981
From:	Jorgensen R BUFFALO FORGE CO.
To:	Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
Shared Package
ML20008G135	List: ML20008G134 ML20008G142
References
REF-PT21-81-452-000 .EFR-810610, PT21-81-452, PT21-81-452-000, NUDOCS 8107020328
Download: ML20008G134 (2)

Text

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Buffalo Forge Company ,

p/.4 0 - " 3 P.O. box = Buffalo, N.Y. ia [g >/

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Director of Inspection Enforcement E dhhh. g Q Nuclear Regulatory Commission g M 01 g' 'b37 MI~

8' Washington, D. C. 20555 \ g g v.5- @ s5 Attent'on: Mr. Victor Stello 5 4'.TgifG tr Mr. Stello:

On June 5, 1981, we made a telephone report to Mr. Robert Bear and Mr. William Mills which they considered to be our pre-liminary report under 10CFR Part 21. Our final report is as follows.

We have a number of contracts which specify that missile penetration analyses be performed. Those contracts for which we have eitber shipped all or part of the equipment are listed below. During the course ~ of executing these contracts we per-formed the necessary missile penetration analyses and designed -

the equipment accordingly. Some of the contracts were for centrifugal fans while others were for axial-flow fans. New methods of calculation indicate thicker housings.

Customer Plant Contract #

Cleveland Elec. & Illum Co. Perry 1 & 2 P-ll89-S P-1120-S Louisiana Power & Light Co. Waterford 3 NY-403557 NY-403558 Dusquecne Light Co. Beaver Valley 1 & 2 2BVS-177 Illinois Power Co. Clinton 1 & 2 C-11487 Washington Public Power WNP 1 & 4 9779-22 Supply System Washington Public Power WNP 2 BR3900-101 Supply System

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EXECtJ11VE OFFICES 490 BROADWAY BUFFALO,NEW YORK 14204 PHONE (716) 847-5121 TELEX 091234

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6 Director of Inspection Enforcement Ju'ne 10,'1981

• Page.2 We are not in a position to judge whether any missiles which might penetrate the housings would produce a condition which would be classified as a substantial safety hazard. We are notifying our customers who are in a position to determine this.

Very truly yours, BUFFALO FORGE COMPANY AIR HANDLING DIVISION 6/m/ A .L , q-Robert. Jorgensen Direct 6r of Engineering t

RJ:gkd cc: Region I Director i

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