Doors
Four types:
- passenger doors
- cargo doors (can only be operated manually by an external handle)
- service doors
- overwing emergency exit doors (type III doors)
These doors are all monitored by proximity sensor switches on the Door Indication and Warning System on the EICAS.
Note that the emergency evacuation slide release mechanism is disabled automatically if the doors are opened from the outside (although the vent flap must be closed).
Other doors:
- forward avionics compartment access hatch
- middle avionics compartment access door
- rear fuselage door
- fuelling compartment access door
These doors are monitored by switches on the Door Indication and Warning System on the EICAS.