Cabin : All areas of an aircraft where passenger seats are installed (also known as fitted interior).
Change of Equipment en Route: A scheduled change of aircraft, occurring one or more times en route, but identified by one Airline Designator/Flight Number between the Station of origin and the Station of final destination.
Code Sharing: Code sharing exists when: (a) one carrier operates a flight on behalf of another, using that carrier's airline designator in the flight number; (b) two or more carriers jointly operate a flight under one or more airline designators.
Code Sharing Flight: A generic term referring to various types of operational and/or commercial arrangements between two or more airlines.