An emergency descent is a manoeuvre for descending as rapidly as possible to a lower altitude (potentially, to the ground for an emergency landing). The need for this manoeuvre may result from an uncontrollable fire, a sudden loss of cabin pressurization, or any other situation demanding an immediate and rapid descent. The objective is to descend the aircraft as soon and as rapidly as possible, within the structural limitations of the aircraft.
General
Crews should follow company approved emergency procedures and manufacturer's guidance in the event that an emergency descent is necessary.
This article considers some aspects of airmanship which are applicable to all aircraft and situations.