Final answer:
On flights with only flight crewmembers on board, it is not necessary to arm any doors. This is because flight crewmembers are trained to perform emergency procedures and can access the cockpit and cabin without the need for armed doors. On flights with only flight crewmembers on board, it is not necessary to arm any doors.
Step-by-step explanation:
On flights with only flight crewmembers on board, it is not necessary to arm any doors. This is because flight crewmembers are trained to perform emergency procedures and can access the cockpit and cabin without the need for armed doors. On flights with only flight crewmembers on board, it is not necessary to arm any doors.
On flights with only flight crewmembers on board, it is not necessary to arm any doors. This is because flight crewmembers are trained to perform emergency procedures and can access the cockpit and cabin without the need for armed doors. On flights with only flight crewmembers on board, it is not necessary to arm any doors.