STC SA3-461

FAA Form 8110-2 (5/14) Page 1 of

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Title SA3-461 Preferred Improvements, LLC 11234 Hackett Road Apple Creek, OH 44606 4b 2 Civil Air Regulations A-618 & A-699 DC-3 All Models Installation of Electrically Driven Emergency Hydraulic Pump. Data required: Remmert-Werner Drawing No. SK-10291, or later FAA Approved revision.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft.

Douglas 10/1/70; 3/25/81; 6/30/83; 3/7/14; 12/5/17;

12/13/17 December 18, 1959 December 18, 1959 Grant E. Youngdahl Program Manager Wichita ACO Branch

FAA Form 8110-2 (5/14) Page 2 of

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2 SA3-461