ML20086A063

Forwards Telecopy AO 76-011 to Replace 760601 Erroneous Transmittal of AO 76-012

ML20086A063
Person / Time
Site:	Fort Saint Vrain
Issue date:	06/10/1976
From:	Swart F PUBLIC SERVICE CO. OF COLORADO
To:	Boyd R Office of Nuclear Reactor Regulation
Shared Package
ML20086A058	List: 05000267/LER-1976-011, A:On 760520,helium Circulator 1C Tripped Due to Negative buffer-midbuffer Differential Pressure.Caused by Flow Blockage of Buffer Gas Reburn Sys.Plugged Filter Cleaned ML20086A063 ML20086A069
References
P-76128, NUDOCS 8311110233
Download: ML20086A063 (1)

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puNic Service Company W Collendo P. O. Box 361, Platteville, Colorado 80651

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Fort St. Vrain Q v.s.wge yk Unit No. 1 P-76128 (A

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c Director of Nuclear Reactor Regulation Atta:

Mr. Roger S. Boyd, Director Division of Project Management U. S. Nuclear Regulatory Commission Washington, D.C.

20555 REF: Facility Operating License No. DPR-34 Docket No. 50-267

Dear Mr. Boyd:

On June 1, 1976, a copy of Abnormal Occurrence Report No. 50-267/76/11 was sent to you.

Erroneously, the amilogram attached was for Abnormal Occurrence Report No. 50-267/76/12. Please discard the erroneous mailo-gram and attach this copy of the mailogram to Abnormal occurrence 50-267/76/11.

Very truly yours, La 7d Frederic E. Swart Superintendent, Nuclear Production Fort St. Vrain Nuclear Generating Station FES/alk 8311110233 760804 PDR I&E PDR p m-76-137

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kV INFOMASTFR PUP $FF CO ON 0141960141 IPO7FST 001 DFNVFR COLO M AY 90 ZIP 76019 F MORRIS H0kARD RFGION I V, RFOULATORY OPFRATION NUCLFAR RFFUL ATORY COMMISSION 611 RYAN PL AZ A DR, SUITF 1000 ARLINGTON, TFXAS 76012 ON 5-10-76, DURING THF AFTFPNOON SHI FT CH AN GF, HFLIUM CIRCULATOR l-C TFT PPFD PUF TO NFCATIVF BUFFER-MIDPUFFFF DI FFERFNTI AL PRESSURE.

INITIAL INDICATIONS kERT TH AT THF TRIP FAS ASSOCI ATFD KITH AN APPPOVFD TFST IN PROGRFSS.

SUPSFOUFNT INVESTIGATION H AS INDICATED NO CONNFCTION KITH THE TFST IN PPOGRFSS.

THE TRIP kAS THEREFORF LNFXPFCTFD AND RFPORTAPLF AS A /0 76/11 PER FORT ST. VR AIN 1FCHNICAL SPFCIFI CATION S 2. l( F).

(DFTERMINED S-20-76).

H. v. HILLY ARD, JR.

NUCLFAR GFNFRATING STATION FORT ST VRAIN PUPLIC SFRVICF COMPANY OF COLORADO 550 FI FTFFNTH STRFFT, DFN V FR, COLORADO 80202 ACCFPTFD 00001 P-PC r

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