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The battery box drain tube on the affected airplanes may in some cases be insufficiently long to protrude 1/2 inch below the belly skin of the airplane.
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Replacing aluminum alloy fitting AN914-2D, which is located between the fuel filter and the carburetor, with copper alloy fitting AN914-2.
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Reports of fraying of the control column cable assemblies resulting from contact of the cable assemblies with the set screw in the aileron stops.
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Information and installation instructions for replacing a ternplate fuel tank with an aluminum fuel tank.
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Instructions on the installation of the 5.00 x 5 and 6.00 x 6 nose wheels on Ercoupes, especially those subject to unusually rough landings or operating from unusually rough fields.
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Failure of the trim tab actuating wire directly in front of the tab control horn, has been reported. Failure of the wire in flight may cause the elevator to flutter.
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Difficulty in the rudder control system in which the shaft of the bellcrank assembly froze in the Bakelite bushing so that it made the rudder control difficult to operate.
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Method of repairing and reinforcing the tail cone of the Ercoupe fuselage where it is subject to damage when the tail is struck in an accident.
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Load testing a defective part (number 415-52129 Shaft Assembly Control Column) in the aileron control system.
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Changes have been effected to prevent further failures in the elevator trim unit handle crank shaft and worm wheel shaft.