I. Introduction: The Problem before Us State Aid in the aviation sector may serve several purposes and can be granted in various ways.1 According to the Commission Communication OJ 2005/C 312/01 on Community Guidelines on Financing of Airports and Start-up Aid to Airlines Departing from Regional Airports (the “2005 Guidelines”), State aid in the airline industry can adopt the following basic forms: aid for airport infrastructure funding, start-up aid