ML20086E209

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Ro:On 740112,during Insp of Permanent Half Size Top Reflector,Seven Elements Failed to Meet Specs for Chips & Gauges.Spare Reflectors Replaced Failed Elements.Great Lakes Carbon,Supplier of Elements,Contacted
ML20086E209
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 01/14/1974
From: Swart F
PUBLIC SERVICE CO. OF COLORADO
To: Howard E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20086E212 List:
References
NUDOCS 8312060271
Download: ML20086E209 (1)


Text

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Public SeMee Company *fP ConrotrA-o e

P. O. Box 361, Platteville, Colorado 80651 3

a January 14, 1974 Mr. E. Morris Howard Director, Directorate Regulatory Operations, Region IV USAEC 10395 West Colfax Denver, Colorado 80215

Dear Mr. Howard:

On Saturday, January 12, 1974, inspection of the permanent half size top reflector to be installed in layer two of the Fort St. Vrain reactor, revealed a number of elements that did not meet the specifications for chips and gouges.

One element was found to have an off-center drilled dowel hole.

Spare reflectors were substituted for five of these out-of-specification blocks.

Seven blocks remain to be replaced.

To facilitate continued testing, these seven out-of-specification reflectors lJ,.; y.

have been installed in the reactor in layer 2 and layer 3, Column 7 of

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region six.

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.9;:. " ; Ap Great Lakes Carbon, supplier of the reflector elements, has been contacted 54, m - p

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and their schedule for delivery of the replacement elements call for them to arrive during the first week in February.

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Substitution of the replacement reflector.s for the out-of-specification blocks presently installed shall be made to minimize schedule interference.

4 Very truly yours0

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Frederic E. Swart Superintendent i

Fort St. Vrain Nuclear Generating Station FES:11

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