05000336/LER-1979-018, Forwards LER 79-018/03L-0

Forwards LER 79-018/03L-0

ML19241C093
Person / Time
Site:	Millstone
Issue date:	07/18/1979
From:	Opeka J NORTHEAST UTILITIES
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19241C094	List: 05000336/LER-1979-018, Forwards LER 79-018/03L-0 05000336/LER-1979-018-03, /03L-0 on 790619:surveillance Testing Revealed Malfunction of Control Element Assembly Motion Inhibit Interlock.Caused by Shifting of Group Deviation Setpoint Voltages.Setpoint Potentiometers Readjusted
References
MP-2-4084, NUDOCS 7907260589
Download: ML19241C093 (1)

LER-1979-018, Forwards LER 79-018/03L-0

Event date:
Report date:
3361979018R00 - NRC Website

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July 18, 1979 lP-2 4084 11r. Boyce II. Grier Director, Region I Office of Inspection and Enforcement U. S. I;uclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 1940C Focility Operating License io. DPR-65 r

Reference:

Docket I:o. 50-336 Reportable Occurrence R0-50-336/79-18/3L-0

Dear lir. Grier:

This letter forwards Licer.see Event Report 79-18/3L-0 required to be submitted within thirty days pursuant to 11illstone Unit 2 Appendix A Technical Specifications, Section 6.9.1.9.b, conditions leading to operation in a degraded mode permitted by a limiting condi-tion for operation. An additional three copies of the report are enclosed.

Yours very truly, I;0RTHEAST liUCLEAR EllERGY CO.

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t-J. F. Opeka Station Superintendent JF0/Rh'B :mw Attachment: LER 79-18/3'_-0 Director, Of fice of Inspection and Enforcement, Washington, D.C. (30)

Director, Office of Itanagement Information and Program Control, cc:

Washington, D.C. (3) 79072605533 466 276