The Potential of Drone Inspection for Aircraft Maintenance Checks
While drone inspection for aircraft is still under development, the goal is to get to a point where a group of drones can fully inspect and evaluate an aircraft in as little as 30 minutes. Doing so reduces the labour hours required and can re-enforce accuracy. In fact, drone-powered aircraft inspection is about to become mainstream.
Source: The Potential of Drone Inspection for Aircraft Maintenance Checks