A method for the management and maintenance of an aircraft including a zone with a high degree of security, a man-machine interface of the aircraft being included in the zone with a high degree of security and necessary for a maintenance operation to be performed by a maintenance operator on a device of the aircraft to be maintained placed outside the zone with a high degree of security. The method includes: connection of a first device to the high-security zone; connection of a second device to a third device; reception of the first device by the second device of the man-machine interface of the aircraft and transfer of information for display of the man-machine interface of the aircraft to the third device; and connection of the second device to a server by means of the telecommunication network in order to obtain information from the server intended for the third device.