ML20245H149

Submits Correction/Clarificaton to Util 890508 Response to Generic Ltr 88-14, Instrument Air Supply Sys Problems Affecting Safety-Related Equipment. Program on Critical Air Demand Equipment Is in Addition to Investigations Performed

ML20245H149
Person / Time
Site:	Mcguire, Catawba, McGuire, 05000000
Issue date:	06/15/1989
From:	Tucker H DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-88-14, NUDOCS 8906290411
Download: ML20245H149 (2)

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C DUKE POWEn GOMPANY P.O. nox 33189 CHARLOTTE, N.C. 28242 HALltTUCKER Tetzenown won canararer (704) 373-4531 mza. man roommenom June 15, 1989 U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Document Control Desk

Subject:

McGuire Nuclear Station Catawba Nuclear Station Docket Nos. 50-369, -370; 50-413, -414 NRC Generic Letter No. 88-14 Instrument Air Supply System Problems Affecting Safety-Related Equipment Response Correction / Clarification Centlemen My letter of May 8, 1989 submitted a response for the McGuire and Catawba Nuclear Stations to NRC Generic Tetter 88-14, " Instrument Air Supply System Problems Affecting Safety-Related Equipment." As a result of an NRC maintenance team inspection at the McGuire Station during the week of June 5-9, 1989, an error was identified in the McGuire portion of the response. The NRC inspectors requested that a correction to the response be submitted as Loon as possible.

Accordingly, this letter constitutes the requested correction. Regarding the subject submittal's Attachment 3, Section 1, 2nd paragraph, the third sentence should read as follows: " Combined dryer capacity is 2800 scfm (four at 700 scfm each) while the combined filter capacity is 4800 scfm (two at 2400 scfm each)."

The Catawba response does not contain a similar error. In addition, Attachment 2 of the McGuire and Catawba responses under "IAE Maintenance Practice Review" discusses a preventative maintenance program which is being established for critical air demand equipment, with a list of critical to operation air operated valves (A0VS) having been identified to have associated air regulator filters replaced. For clarification purposes it should be noted that this program on critical air demand equipment (as determined in a review by Operations, Design Engineering, and Maintenance personnel) is in addition to investigations performed under Generic Letter 88-14, and the listing of Critical To Operation ADVS is not directly related to the list of Safety-Related Active A0VS provided in Attachment A of the responses. These matters have previously been discussed with the NRC Inspectors.

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, .U..S. Nuclear Reguletory Commission June 15, 1989 i 'Pagt 2 l

We regret any confusion these msy have caused. Should there be any further questions concerning this matter, or if additional information is desired, please advise. Duke will continue to provide the notification of actions completed letters on McGuire and Catawba as discussed in the May 8th letter.

Very truly yours, a.d V Hal B. Tucker PBN170/lcs xc: Mr. S. D. Ebneter Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta St., NW, Suite 2900 Atlanta, Georgia 30323 Mr. Darl Hood, Project Manager Office of. Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. P. K. VanDoorn NRC Resident Inspector McGuire Nuclear Station Mr. W. T. Orders NRC Resident Inspector Catawba Nuclear Station Dr. K. N. Jabbour, Project Manager Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 i

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