ML20086B103

Ao:On 711124,alarm Received on Radiation Monitoring Sys Channel R-17.Leak Determined to Be in Pressurizer Liquid Space Sample HX

ML20086B103
Person / Time
Site:	Robinson
Issue date:	11/30/1971
From:	Utley E CAROLINA POWER & LIGHT CO.
To:	Morris P US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20086B087	List: ML20086B095 ML20086B103 ML20086B110
References
NUDOCS 8311170056
Download: ML20086B103 (1)

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\ ( x' Carolina Power & Light Company 50J 0 I ,

Raleigh, North Carolina 27c02 November 30, 1971

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Dr. Peter A. Morris Division of Reactor Licensing

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11. B. ROBINSON STEAM ELECTRIC PIANT -

LICENSE DPR-23 FAILURE OF SAMPLE IIEAT EXCIIANGER

Dear Dr. Morris:

In accordance with Technical Specifications Paragraph f,.6.1.c,

'the following abnormal occurrence is reported.

On November 24, 1971, an alarm was received on Radiation Monitoring System Channel R-17, Component Cooling System. The primary sample heat exchangers were isolated and the activity level stabilized.

The leak was determined to be in the pressurizer liquid space sample heat exchanger. The other sample heat exchangers were returned to service.

Pressurizer liquid space samples will be obtained utilizing another sample heat exchanger pending repair or replacement of this heat exchanger.

A sample taken on the Component cooling System following iso-lation of the sampic heat exchangers indicated an activity of 8.2 x 10-5 ue/ml. There was no activity released to the environment as the Component Cooling System is a c1csed systaa.

Yours very truly, Unn:dds ._ cG -#

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cc: Mr. C. D. Barham E. E. Utley Mr. G. P. Beatty Manager Mr. N. B. Bessac Generation & System Operations

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