Saturn Airways, Inc. v. Civil Aeronautics Board, Dan-Air Services Ltd., Intervenors. Lynn Michelle Tschirhart and Paul Jeffrey Tschirhart v. Civil Aeronautics Board, Americans for Charter Travel Capitol International Airways, Inc., Intervenor. National Air Carrier Association, Inc. v. Civil Aeronautics Board, Dan-Air Services Ltd., Intervenors. Aviation Consumer Action Project v. Civil Aeronautics Board, Capitol International Airways, Inc., Intervenor. Trans World Airlines, Inc. v. Civil Aeronautics Board, Lynn M. Tschirhart, Intervenors. Pan American World Airways, Inc. v. Civil Aeronautics Board, National Air Carrier Association, Inc., Intervenors. American Airlines, Inc. v. Civil Aeronautics Board, National Air Carrier Association, Inc., IntervenorsFiledJan 9, 1973