ML19350A160

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RO 75-29/75-14:during Type B Electrical Penetration Testing, Excessive Outward Leakage Detected from Penetration 14 in Blister 10.Caused by Cracked Mi Cable Gland nut.Fourteen-day LER Forthcoming
ML19350A160
Person / Time
Site: Yankee Rowe
Issue date: 11/24/1975
From: Autio H
YANKEE ATOMIC ELECTRIC CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
RO-75-29-75-14, NUDOCS 8102120075
Download: ML19350A160 (1)


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YANKEE AT01]IC ELECTRIC COMPANY

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November 24, 1975 7

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U. S. Nuclear Regulatory Commission Office of Inspection 6 Enforcecent

' Region 1 631 Park Ave.

K~ng of Prussia, Pennsylvania,19406 Attention:

Mr. J. P. O'Reilly

Dear Mr. O'Reilly:

Pursuant to the requirements of the Technical Specifications Section E.2.a(3), abnormal degradation discovered in the primary containcent is reported as Reportable Occurrence 50-29/75-14.

ing routine Type B electrical penetration'# testing, excessive outward leakage was detected from penetration No. 14 in blister No. 10.

A cracked MI cable gland nut was attributed to be the cause of the leakage.

This leakage could easily be felt by hand during the testing.

J A 14 day License Event R'eport will follow.

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Very truly yours,

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Mr4%

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H. A. Autio Plant Superintendent i

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Director, Office of MIPC

..U. S. Nuclear Regulatory Connission Washington, D. C.

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