A few aircraft types have an air lock type door system with 2 doors and a toilet in between.
Flight deck door open.
One method employs a combination of procedures using crewmembers to monitor the area and or aircraft equipment such as galley carts to block access to the flight deck during the door transition.
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Strong lightweight composite materials often provide the.
The only time the flight deck is potentially accessible during flight is when the door is opened.
The three main reasons a door is opened during flight are for crew change outs restroom breaks and meal.
However such systems take up space and normally are only found on some larger aircraft.
Airbus reinforced cockpit door description and procedure duration.
Security of the flight deck when opening the flight deck door during flight.
The flight deck door is designed to keep all unauthorized persons out of the flight deck while inflight.
The airlock system ensures that there is never an open door to the flight deck.
2 except when it is necessary to permit access and egress by persons authorized in accordance with paragraph d 3 of this section a pilot in command of an airplane that has a lockable flight deck door in accordance with 129 28 a and that is carrying passengers shall ensure that the door separating the flight crew compartment from the.