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Failure of the rear flap pulley bracket probably due to insufficient weld area in conjunction with operation of flaps at excessive speeds.
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Trouble with the starter button sticking as a result of a loose connection in the starting circuit.
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Inspection of clearance between the pilot's seat and the master switch wires.
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Closer inspection required of the brake cable and pulleys is necessary to find frayed or broken cables, generally where the cable contacts the pulleys.
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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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Means of preventing the hinge pins from vibrating loose and moving forward into the propeller.
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Actual labor breakdown, in hours, of factory time required to cover and finish 100 each of the Piper PA-18, PA-18A and PA-22 models.
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Reports of the listed model airplanes that the engine will not operate properly with low fuel in the 7 gallon header tank.
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Inspecting the clearance between the engine mount and the tail pipe, and the entire nose wheel steering control system, between the nose wheel and the rudder pedals, also be checked for adequate clearances.
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Inspection of rudder skins at points immediately adjacent to the upper and lower ends of the rudder tab hinge for cracks.