IMPROVEMENTS IN AIRCRAFT DOORS

摘要

An alarm system for an aircraft door comprising; a sensor (37) for sensing when the door operating handle is about to be gripped by an operator, an aural alarm (35) associated with the sensor (37) and operas a to sound when the sensor (37) detects that the handle is about to be gripped, means (32, 38) for arming the sensor and/or aural alarm when the aircraft door is armed.