, 1972). Adopting release for amendments to what is now FAR Part 91.501, 38 Fed. Reg. 19,024 (July 17, 1973). Interpretations in Joseph D. Kuchta, Federal Aviation Decisions (New York, 1973): 1977-5; 1979-18 (major enterprise test inapplicable because air transportation was the sole business of the corporation); 1982-1;