Aircraft Systems 2 Exam 1 Practice

Automated prerecorded passenger announcements are used when a situation creates an immediate need to give all passengers clear safety instructions. In a cabin depressurization, the cabin altitude rises and oxygen becomes limited, so oxygen masks deploy and passengers must be told quickly to don them and follow crew instructions. An automatic broadcast helps deliver the same, essential guidance to everyone right away, reducing delay and confusion as the crew handles the situation. Other events like engine fire, turbulence, or a bird strike don’t automatically trigger a universal prerecorded message to all passengers, so they’re not the standard trigger for this feature.