ML20085D373

Ro:On 720726 Following Part Length Rod Control Sys Alarm, Frequency Sensor Relay Found Inoperable.Relay Replaced

ML20085D373
Person / Time
Site:	Robinson
Issue date:	09/11/1972
From:	Utley E CAROLINA POWER & LIGHT CO.
To:	Oleary J US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20085D359	List: ML20085D370 ML20085D373
References
NUDOCS 8307250291
Download: ML20085D373 (1)

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'q) iv' s.) w) , G 5 '.,Ts Carolinit Power & Light Company i Raleigh, Nor h Carei ina 27602 SepterOcr 11, 1972

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Mr. John F. O' Leary, Director g .'._f. /

Directorate of Licensing U. S. ALonic Energy Coulssion

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Washington, D. C. 50545 H. B. ROBINSON PI M T LICENSE DPR-23 MALFUNCTION OF PART IT.NGT:I ROD CONTROI, SYSTDI Cear Mr. O'Lcary:

At 5:58 P.M. on July 26, 1972, an alarm was received on the Part Length Rod Control Systen. A frequency act or relay which conitors the 60 cycle current to the logic cabinet van found inoperable. This relay was replaced and the Part Length Rod Centrol Syrtem returned to narcal at 8:52 P.M. July 26, 1972.

Reactor pouer was 99.9% at this tire cud vns not changed during the period that the Part Length Rods were inoperable. The Part Length I:ods were not in use during this period.

This is reported in accordance with Section 6.().3, Technical Specifications.

Yours very truly, y

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E. E. Uticy N3 Manager Bulk Power Supply T /[ JEM:me

//f cc: Mr. C. D. Barha:n Mr. N. B. Dessac gf Mr. B. J. Furr vr 'y au JK

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250291 721117 7 b PD ADOCK 050002 D COPY SENT REGIONN h S -