In a aeroplane, each crew member shall be properly secured by all safety belts and harnesses provided1 - during taxying 2 - during take-off 3 - during landing4 - whenever deemed necessary by the commander in the interest of safety 5 - during other phases of the flight while at his stationThe combination regrouping all the correct statements is:
Domanda 108, Operational Procedures - ATPL - Airline Transport Pilot license