Plain English Meaning

A door pops open after takeoff. The airplane still flies fine. The main danger is the pilot getting startled and losing focus on flying, not the door itself.

Full Definition

An in-flight emergency or abnormal situation in which a cabin or baggage door becomes unlatched or opens after takeoff, typically because it was not fully secured before flight. In most light airplanes, an open door does not affect the airplane's ability to fly and is primarily a distraction; the correct response is to maintain aircraft control, fly the airplane normally, and either continue to a safe landing where the door can be closed on the ground, or follow the manufacturer's procedure for closing it in flight if one is published.

Context Anchor

Encountered in abnormal and procedure training, especially in light airplane operations after takeoff or during when a door was not fully latched before flight.