05000289/LER-1979-012, Forwards LER 79-012/01T-0

Forwards LER 79-012/01T-0

ML19241A360
Person / Time
Site:	Crane
Issue date:	07/06/1979
From:	Herbein J METROPOLITAN EDISON CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19241A361	List: 05000289/LER-1979-012, Forwards LER 79-012/01T-0 05000289/LER-1979-012-01, /01T-0 on 790618:relay 62x2B/RC1A Failed to Drop Out When Coil Was de-energized.Caused by Notch in Operating Rod.Of 48 Relays inspected,25 Notches Were Found & Removed
References
FOIA-81-159 GQL-0875, GQL-875, NUDOCS 7907180477
Download: ML19241A360 (1)

LER-1979-012, Forwards LER 79-012/01T-0

Event date:
Report date:
2891979012R00 - NRC Website

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Metropolitan Edison Company

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Post Office Box 542 Reading Pennsylvania 19640 215 929-3601 Writer's Direct Dral Number July 6, 1979 Dgl)-

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J*W Mr.

B.

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Orier, Director Regicn :

office of Inspection and Enfor:ement U.S. ?!uclear Regulatory Ccr-iscicn

-:ing of russia, PA 19L o Cear Sir:

Three :hle Island :!uclear 3tation, I' nit 1 (2C-1) operating License !o. D?R-50 Docket :To. 50-289 lER 79-12/olT-o Attached please find the sub,'ect e tent report, which ccncerns the failure of 'm Engineered Safeguar<is Actuatien Systen relay to " drop cut" when de -energiced. Althcugh the indri.cual relay failure is not otherwise reportable, this event is being re't'crted per 2C-1 Technical Crecification 6.9.2. A(9) as a pctentially generic problem.

Thic repor-is submitted late per the July 3, 1979 telecen between our

'r. 4 S. Stanley and your Mr. D. Johnscn.

Sincerely, 4

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J. G. Herbein

' lice President Generation c a... t e an.%...

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