05000010/LER-1977-040, Forwards LER 77-040/03L-0

Forwards LER 77-040/03L-0

ML19338E408
Person / Time
Site:	Dresden
Issue date:	11/03/1977
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19338E409	List: 05000010/LER-1977-040, Forwards LER 77-040/03L-0 05000010/LER-1977-040-03, /03L-0:on 771017,Channel 1 (RIC-281) Found to Trip at 132%.Caused by Instrument Drift.Trip Setpoint Readjusted to 115%.High Neutron Flux Monitor Testing Will Continue Monthly Per Dis 700-4,verifying Operability
References
1031-77, NUDOCS 8009290532
Download: ML19338E408 (1)

LER-1977-040, Forwards LER 77-040/03L-0

Event date:
Report date:
0101977040R00 - NRC Website

text

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November 3, 1977

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BBS LTR #1031-77 James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn IL 60137 Reportable Occurrence Report #77-040/03L-0, Docket #050-0010 is hereby submitted to your office in accordance with Dresden Nuclear Power Station Technical Specification 6.6.B.2.a.,

reactor protection instrument settings which are found to be less conservative than those established by the technical specifications but which do not prevent the fulfillment of the functional requirements of aff ected systems.

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B.B. Stephenson Station Superintendent

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Dresden Nuclear Power Station BBS:diz cc: Director of Inspection & Enforcement Director of Management Information & Program Control File /NRC

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