Hvis et flyvebesætningsmedlem opdager eller et terrænadvarselssystem (ground proximity warning system) viser, at afstanden til jorden er uacceptabel, skal luftfartøjschefen eller den pilot, til hvem udførelsen af flyvningen er uddelegeret, sikre, at der straks iværksættes afhjælpende foranstaltninger for at etablere sikre flyveforhold.
When undue proximity to the ground is detected by any flight crew member or by a ground proximity warning system, the commander or the pilot to whom conduct of the flight has been delegated shall ensure that corrective action is initiated immediately to establish safe flight conditions.