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Aileron balance weights, in addition to being a maintenance problem, might present a flight hazard if permitted to become loose and remain that way.
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Service Memorandum #58, issued in May 1950, called attention to the necessity of properly maintaining Ercoupe wings. At this time we believe it desirable to reiterate these instructions.
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Rework to improve the life of the outer cylinder for the steel nose gear, and the need for oversize pins to permit the salvaging of the outer cylinder in the Electrol strut.
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Information on "ditching" operations in Ercoupes.
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Malfunctioning of the automatic carburetor heat used on early Ercoupes causing the carburetor heat arm to be held in closed position when the throttle is opened, as well as preventing full throttle opening, resulting in a dangerous condition.
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This memorandum is a supplement to Memorandum #49, covering the inspection of control column cables.
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Instructions and materials list for the installation of elevator trim tab stops and springs on early Ercoupes.
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Improper maintenance of the wing fabric causing wing panel failures, resulting in serious Ercoupe accidents.
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A placard titled "INTENTIONAL SPINS PROHIBITED," must be installed in full view of the pilot on all 415-C or CD Ercoupes that have rudder pedals.
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Information regarding the difficulties which may be experienced when trying to make a parachute jump from an Ercoupe.