Pilot error is the most commonly cited reason for private airplane crashes; specifically, loss of control of the aircraft. Since most private pilots are contractors, they wait on clients’ needs and head to the runway when it’s time to fly. There generally isn’t a set schedule, or rotating set of pilots to ensure regularity and shift coverage. An unprepared pilot called for a flight may put his or her passengers at risk or an airplane accident if he or she is not in a suitable state to fly. Pilots who attempt to fly small private aircraft while under the influence, while fatigued, or otherwise impaired, put the plane and everyone on board at serious risk of an aviation accident. here