ML20024C126

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Ro:On 830517,two Triaxial time-history Recording accelerographs,ST-6336,on Containment Base Slab & Wall Taken Out of Svc for Calibr.Unit Will Be Returned to Svc by 830708 Following Integrated Leak Rate Test
ML20024C126
Person / Time
Site: Trojan File:Portland General Electric icon.png
Issue date: 06/27/1983
From: Yundt C
PORTLAND GENERAL ELECTRIC CO.
To: Martin J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
CPY-476-83, NUDOCS 8307120287
Download: ML20024C126 (1)


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C Portland General Electric Company I;333 gig 30 plj fp.,. a June 27, 1983 Trojan Nuclear Plant CPY-476-83

U P.O. Box 439 Rainier, Oregon 97048 (503)556-3713 OEGl0lj y7,q Mr. John B. Martin Regional Administrator US Nuclear Regulatory Commission 1450 Maria Lane - Suite 210 Walnut Creek, California 94*96

Dear Sir:

Limiting Condition for Operation (ICO) 3.3.3.3. of the Trojan Technical Specifications requires that a Special Report be provided if certain seismic monitoring instruments are to be inoperable for more than 30 days.

Two triaxial time-history recording accelerographs, ST-6336, located on the Containment base slab and Containment wall were taken out of service on May 17, 1983 for calibration and will not be returned to service until after the Containment integrated leak rate test is completed.

It is estimated that the above instruments will be returned to service by July 8, 1983.

Sincerely, C.

. Yundt i

General Manager CPY/GCB/JCP:dlj c

LER Distribution List File 93.24a (Q) 8307120287 830627 PDR ADOCK 05000344 S

PDR

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