ML19305D853

Forwards LER 80-014/03L-0

ML19305D853
Person / Time
Site:	Fort Saint Vrain
Issue date:	04/09/1980
From:	Warembourg D PUBLIC SERVICE CO. OF COLORADO
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19305D855	List: ML19305D853 ML19305D858
References
P-80072, NUDOCS 8004150626
Download: ML19305D853 (4)

Text

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Public service company $1 cenendo

, j 16805 Weld County Road 191/2, Platteville, Colorado 80651

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April 9, 1980 Fort St. Vrain Unit No. 1 P-80072 Mr. Karl V. Seyfrit, Director Nuclear Regulatory Commission Region IV Office of Inspection and Enforcement ,

611 Ryan Plaza Drive '

Suite 1000 Arlington, Texas 76012

Reference:

Facility Operating License No. DPR-34 l

Docket No. 50-267

Dear Mr. Seyfrit:

Enclosed please find a copy of Reportable Occurrence Report No. 50-267/

80-14, Final, submitted per the requirements of Technical Specification AC 7.5.2(b)2.

Also, p'. ease find enclosed one copy of the Licensee Event Report for Reportrble a Occurrence Report No. 50-267/80-14.

Very truly yours, A -- W w Don Warembourg l Manager, Nuclear Production DW/cls Enclosure cc: Director, MIPC l l

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8004150626l l 1

I REPORT DATE: April 9, 1980 REPORTABLE OCCURRENCE 80-14 ISSUE O

, OCCURRENCE DATE: March 11. 1980 Page 1 of 3 FORT ST. VRAIN NUCLEAR GENERATING STATION PUBLIC SERVICE COMPANY OF COLORADO 16805 WELD COUNTY ROAD 19 1/2 PLATTEVILLE, COLORADO 80651 REPORT NO. 50-267/80-14/03-L-0 FINAL IDENTIFICATION OF OCCURRENCE:

On March 11, 1980, with the reactor in a shutdown condition, engineering personnel observed that emergency boiler feedwater snubber BFS-228E was inoperable.

Since the reactor had been operated at power during the surveillance interval, this constitutes operation in a degraded mode of LCO 4.3.10, and is reportable per Fort St. Vrain Technical Specification AC 7.5.2(b)2.

EVENT DESCRIPTION:

On March 11, 1980, with the reactor in a shutdown condition, engineering personnel observed that the pin at the piston rod eye of emergency boiler feedwater snubber BFS-228E was missing. See details of Figure 1.

Because this pin was missing, the snubber was not properly attached to the pipe, and was therefore inoperable. This snubber was verified operable f per approved surveillance procedure one week prior to the occurrence.

CAUSE DESCRIPTION: l There appears to be no cause traceable to plant operation which can account for the missing pin.

CORRECTIVE ACTION:

A new pin was fabricated and installed and the snubber was returned to service.

The present surveillance interval is 6 months + 25%. No change is required

! as a result of this occurrence.

No further corrective action is anticipated or required.

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REPORTABLE OCCURRENCE 80-14 ISSUE O Page 2 of 3 Hgs. 200, 201 SNUSSER WLVE YENT-SHIPPweG PLUG P1VOT MIE M

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INSULATI #

Pin missing from BFS-228E FIGURE 1 l

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REPORTABLE OCCURRENCE 80-14 ISSUE O Page 3 of 3 Prepared By:

kib kf A Richard R. Frost Technical Services Technician

./ ' , ,, Y Reviewed By: / /.; ,_.-

J. W. Gahm Technical Services Supervisor Reviewed By:

Frank M. Mathie l Operations Manager i Approved By:

• 7)1usM Don Warembourg f Manager, Nuclear Production r

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