The signals cell phones and other devices give off might effect critical aircraft systems over time.

Other advanced courses cover specific aircraft systems and provide troubleshooting skills.

The recorder could provide information about speed, altitude, engine activity and other aircraft systems.

Today, at least in some aircraft systems, the annunciation voice may be either male or female.

There was sufficient fuel on board and nothing was wrong with the aircraft systems.

Performed flight tests of the most advanced aircraft systems in the world.

Its sole purpose was to investigate the effect of radiation on aircraft systems.

The aircraft system and the ground control station were carried in separate backpacks.

The military role of unmanned aircraft systems is growing at unprecedented rates.

Used to drive aircraft systems when main engines are shut down.