ML20084R947

Telecopy Ro:On 740924,during Local Leak Rate test,through- Wall Crack Discovered on Torus Purge Inlet Line 3-8506-18. Cause Not Stated.Investigation Into Failure & Repair Procedures Underway

ML20084R947
Person / Time
Site:	Dresden
Issue date:	09/24/1974
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084R941	List: ML20084R938 ML20084R943 ML20084R947
References
NUDOCS 8306160082
Download: ML20084R947 (1)

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• 1 WU AGCY WHEA WUA 178 A3 304P CDT VEC223 1553) 2-027369E267)PD 09/24/74 1533 g

ICS IPMENGZ CSP B

815S422920 TDBN MORRIS IL 69 09-24 0333P EDT 5

PMS JAMES G KEPPLER, REGINAL DIRECTOR DIRECTORATE OF REGULATORY E

OPERATIONS-REGION IIIUS ATOMIC ENERGY COMMISSION, DLR

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[799 ROOSEVELT RD M

GLEN ELLYN IL 50137 E

SUBJECT DPR-25 DRESDEN NUCLEAR POWER STATION UNIT' 3 WILL CONFIRM A CONVERSATION WITH F. MAURA 0F YOUR OFFICE AT llAM THIS DATE CONCERNING A THROUGH WALL CRACK DISCOVERED ON TORUS PURGE INLET LINE 3-8506-18".

THE CRACK WAS DISCOVERED

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WHILE THE UNIT VAS SHUT DOWN AND LOCAL LEAK RATE TESTING WAS

.O IN PROGRESS.

'b INVESTIGATION INTO THE FAILURE MODE AND REPAIR' PROCEEDURES IS UNDERWAY.

STEPHENSON SUPERINTENDENT DRESDEN NUCLEAR POWER STATION COMMON WEALTH EDISON COMPANY RTE 1 MORRIS ILLINOIS 60450 suma 8306160082 760218

{DRADOCK 05000249 PDR

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