ML19309E184

Forwards Response to IE Bulletin 80-03,Loss of Charcoal from Std Type II,Two-Inch,Tray Adsorber Cells. Lists Charcoal Filters for Which Visual Insp Was Performed.No Significant Charcoal Leakage Found

ML19309E184
Person / Time
Site:	McGuire, Mcguire
Issue date:	03/21/1980
From:	Parker W DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-80-03, IEB-80-3, NUDOCS 8004180516
Download: ML19309E184 (2)

Text

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438.:E 9' DUKE POWER COMPANY S7o

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Powra Dun.pswo 42c Sourn Cnuncu SrazzT, CnAHIDTTE, N. C. 2824a March 21, 1980 w w w o.aannen,sa.

ViCF PossiotNt Te t t pac h t:Anta 704 SYtam PooovCTione 373-4083

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Mr. James P. O'Reilly, Director b

U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 c-Re: RII:JPO McGuire Nuclear Station Docket Nos. 50-369 and 50-370

Dear Mr. O'Reilly:

Attached is Duke Power Company's response to your letter of February 6, 1980, which transmitted IE Bulletin 80-03.

Ve y truly yours, Q,

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u William O. Parker, Jr.

THH:scs Attachment cc: Director, Division of Fuel Facility and Materials Safety Inspection Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Q E y 1C.5 A l* h -

8004180516

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MCGUIRE NUCLEAR STATION Response to IE Bulletin 80-03 A visual inspection of the following charcoal filters has been performed for McGuire Nuclear Station.

Filter Manufacturer Unit 1 Auxiliary Building Exhaust CVI l

Unit 2 Auxiliary Building Exhaust CVI Unit 1 A Reactor Building Purge CVI Unit 1 B Reactor Building Purge CVI Unit 2 A Reactor Building Purge CVI Unit 2 B Reactor Building Purge CVI Unit 1 Fuel Pool Building Exhaust CVI Unit 2 Fuel Pool Building Exhaust CVI Unit 1 A Annulus Vent FARR Unit 1 B Annulus Vent FARR Unit 2 A Annulus Vent FARR Unit 2 B Annulus Vent FARR Unit 1 A Control Room Vent CTI Unit 1 B Control Room Vent CTI All of the above charcoal filters are of the two inch vertf.aal bed type. The screens on these units are welded instead of riveted.

The inspection revealed that the screens are adequately secured to the castings to provide assurance against significant charcoal leakage.

Some small particles of charcoal were observed inside some of the filter units which were loaded. These particles are smaller than the screen openings and apparently simply fell out.

Due to their small number and small size the leakage of these charcoal particles is of no significant consequence.

L.

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