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Instructions for an inspection of the vacuum pump adapter drive assembly.
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Instructions for compliance with Marvel-Schebler Division Bulletin No. A1-69.
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The flight manual supplement titled "Supplement No. 2 to aircraft flight manual dated October 23, 1952" concerning the installation of the optional auxiliary fuel tank on affected model aircraft may contain erroneous information.
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Aircraft equipped with either a single or dual fuel quantity gauge installation must have the placard installed.
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Reports of the vacuum pump splined coupling on Airborne Mechanisms Vacuum Pumps Models 113A5 and 113A8 may fail prematurely as a result of over-curing.
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Inspecting for weld separation where the rudder pedal cable attachment fitting is welded to the rudder pedal.
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Modification of the cabin heat box plate to prevent interference with the movement of the safety belt attaching link.
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The tail brace clevises and bushings on the aircraft indicated by the above serial numbers are to be replaced.
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Reports that the front seat center safety belts are showing evidence of deterioration due to heat from the rear seat heater outlet.
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Reported cases of failure of a tail brace wire (10074-02 or 10074-03) on the above listed airplanes.