Abstract: There is provided a device for assistance with maintenance for an aircraft engine, including computer means; display means; and a human-machine interface. The human-machine interface includes remote movement recognition means to remotely identify a movement or a position of a human operator and to provide corresponding identification data; and a control module, to provide a control command to the computer means in response to the identification data. The computer means are designed to control the display on the display means, of assistance information for maintenance of an aircraft engine, in response to the control command. The computer means are also designed to control holding the content of a display shown on the display means. A method used with such a device is also provided.