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Inspection of the stabilizer aluminum yoke casting, and if any cracks are apparent, the part should be replaced before further operation of the airplane.
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Instructions for more rigid visual inspections of the engine and nose wheel mounts for indication of cracks at each of the 100 hour inspections.
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Reports of malfunctioning steerable tail wheels caused by the tail wheel arm striking the end of the tail wheel installation bolt.
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Tightening engine mounting bolts to obtain a torque of (40) inch pounds.
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To prevent the oleo strut assembly from separating in flight, replace the fiber piston with aluminum pistons.
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It is recommended that within the next twenty-five hours the heat muff be removed and the welded areas around the stack junctions and at the cylinder attach flange be closely inspected.
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Breakage has occurred in the welded joint at the intersection of the steel channels, to which the right rear edge of the windshield attaches.
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Failure of the fuel shut-off control attachment at the swivel fitting.
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Information about certain features in the electrical wiring system of the Piper J-4 aircraft which the Civil Aviation Authority feels should be corrected.
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The tail brace clevises and bushings on the aircraft indicated by the above serial numbers are to be replaced.