A check: These checks are performed every 400–600 flight hours or 200–300 flight cycles and depend on the aircraft type. One aircraft cycle includes one round of takeoff and landing. The checks require about 50-70 person-hours and need the aircraft to remain on the ground for at least 10 hours. This type of check varies by aircraft type, cycle count, or the number of hours it has flown after the last inspection. The inspection can be delayed by the airline if certain conditions are met. A check is performed in an aircraft hanger.
