ML20090E170

AO 74-10:on 740817,during Routine Surveillance Testing, Barton Differential Pressure Instrument 1 B05C (Emergency Cooling High Flow) Tripped at Lower than Required Value. Caused by Setpoint Drift

ML20090E170
Person / Time
Site:	Nine Mile Point
Issue date:	08/21/1974
From:	Schneider R NIAGARA MOHAWK POWER CORP.
To:	Skovholt D US ATOMIC ENERGY COMMISSION (AEC)
References
8857, A-74-10, A0-74-10, NUDOCS 8303140005
Download: ML20090E170 (2)

Text

Q) () g() -) }- 0 NIAGARA MOHAWK POWER CORPORATION L9 'g MAGARA f,..

MOHAWK M /

300 ERIE BOULEVARD. WEST U f[ g\ . s SYRACUSE. N, Y.13 20E  % .o w T c7 A U G P,8 19 7 & SI August 21, 1974 ~-

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Mr. Donald J. Skovholt ~

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Aesistant Director for Reactor Operations Division of Reactor Licensing United'Si;ates Atomic Energy Comission Washington, D.C. 20S45

Dear Mr. Skovholt:

In accordance with Technical Specifications l.13d for Nine Mile Point Unit 1, the enclosed Abnormal Occurrence Report is sub-mitted. This report is in accordance with the format set forth in Regulatory Guideline 1.16. This occurrence was reported to 20:I~

.on August 19, 1974.

Very truly yours, n ,

,' , ,t

.R. Schnesder

&Ybo' Vice President - Electric Operations TJD: m Enc.

83031T0005 740821 PDR ADOCK 05000220 S- PDR

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