Preiskava s skladu s to uredbo se začne na podlagi pisne pritožbe, ki jo v imenu industrije Skupnosti vloži katera koli pravna ali fizična oseba ali zveza, ali na predlog Komisije, če obstajajo zadostni dokazi o obstoju izravnalnih subvencij (vključno z višino le-teh, če je to mogoče) ali o nepošteni praksi oblikovanja cen v smislu te uredbe, škode in vzročne povezave med domnevno subvencioniranimi ali nepošteno oblikovanimi cenami storitev zračnega prevoza in domnevno škodo.
An investigation under this Regulation shall be initiated upon the lodging of a written complaint on behalf of the Community industry by any natural or legal person or any association, or on the Commission's own initiative, if there is sufficient evidence of the existence of countervailable subsidies (including, if possible, of their amount) or unfair pricing practices within the meaning of this Regulation, injury and a causal link between the allegedly subsidised or unfairly priced air services and the alleged injury.