Amendment Effective Date Subject
Part 3 (N) November 1, 1949 Reissue of� Part 03 with all amendments incorporated
3-1 December 7, 1949 Required fireproof identification plate, location of data plate.
3-2 February 6, 1950 Required safety belts for airplanes manufactured after January 1, 1951, and that belts must be approved.
3-3 October 11, 1950 Eliminated all references to restricted airplanes and adopted a new part, Part 8.
3-4 January 15, 1951 Amended approximate 30 sections of the code dealing with: Service tests, flight tests, performance, stalls, spins, seats, propeller vibration, fuel systems, oil systems, construction, fire protection, position lights.
3-5 April 30, 1951 Amended stall characteristics requirements, stalling demonstration.
3-6 June 4, 1951 Amended stall characteristics requirements, required flight manual entry of altitude losses in excess of 100 feet or any pitch in excess of 30 degrees below level flight
3-7 March 4, 1952 Aerobatic spin requirements, instrument power, simplified structural design criteria, showing of structural integrity by flight tests.
3-8 June 23, 1952 Fuel tank sump requirements.
3-9 December 15, 1952 Correction of References.
3-10 May 16, 1953 Part 3 limited to airplanes of 12,500 pounds or less, equipment, placards, induction system icing, equipment, AFM.
3-11 May 17, 1954 Position lights requirements.
3-12 December 18, 1962 Applicable requirements, type certificate, fire precautions.
3-13 August 25, 1955 Items of mass, fuel oil ratio, placards, weight, gust loads, automatic pilot systems.
3-14 March 13, 1956 Annual Airworthiness Review of 1955, incorporation of results; firewall, fire protection, design weight, seats, berths, position lights, fuel system, placards.
R-391 May 1, 1953 Application of Transport performance requirements to the C-46 airplane.