ML19263E007

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Interim Rept Re Potentially Defective Kula Terminal Blocks Supplied by Conax for Drywell Electrical Penetrations.Results of Test Investigation of Terminal Blocks Have Been Inconclusive
ML19263E007
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 04/09/1979
From: Fahrner W
DETROIT EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
EF2-44536, NUDOCS 7904240329
Download: ML19263E007 (2)


Text

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=== a (113) 231 6000 A:ri1 1 9, 1979 EF2 - 44,536 Mr. James C. Keppler, Regional Director Directorate of Regulatory Operations Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

Referencen: Enrico Fermi Atomic Power Plant, Unit 2 A. 10 CFR 50.55(c) Deficiency Report Telephone Call of November 21, 1978 to NRC Region III (EF2-44875 of December 5, 1978)

B. Conax Letter of November 9, 1978 to NRC.

C. 10 CFR 50.55(e) Interim 30-day Report, Letter to NRC of December 20, 1978, EF2-43636

Subject:

Kulka Terminal Block Deficiency Pursuant to the requirements of 10 CFR 50.55(e) (3) and the reporting period specified in Reference C, this letter is sub-mitted as the interim report on the potentially defective Kulka terminal blocks supplied by Conax for t_be drywell etrctrical penetrations.

Results of test investigation of the terminal blocks has been thus far inconclusive.

Within 120 days, we will issue a definitive written report if" evaluation indicates a reportable deficiency. If at that time, we determine it not to be reportable under 10 CFR 50.55(e), we will notify your office.

Sincerely yours, pp* , 9't /

i i / b l. It ) L

' pg W. . Fahrner

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Project Manager p Enrico Fermi 2 (

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Mr. James C. Keppler April 9, 1979 Page 2 EF2-44,536 cc: Mr. John G. Davis .

Acting Director Office of Inspection and Enforcement Division of Reactor Inspection Programs U.S. Nuc. lear Regulatory Commission Washington, D. C. 20555

.