Access door between cockpit and cabin of aircraft has lock which operates from cockpit side and releases automatically if air pressure difference between cockpit and cabin exceeds set value

摘要

The access door (8) between an aircraft cockpit and cabin has a cockpit side (8a) and a cabin side (8b). The door has a leaf (22) to close the opening (20) and opens towards the cabin. The door has a lock (30) operated from the cockpit side and released automatically when the pressure difference between the cockpit and the cabin, corresponding to the air pressure against the cockpit and cabin sides, is above a preset level.