Plain English Meaning

A quick five-part check a pilot runs through at important moments in a flight to spot anything that might make the flight unsafe. The five things to look at are: the trip itself, the aircraft, yourself, your passengers, and your cockpit equipment.

Full Definition

A practical single-pilot risk management checklist used at key decision points in a flight. The pilot evaluates five categories — Plan (the mission, route, weather, fuel, and timing), Plane (the aircraft's mechanical condition and equipment), Pilot (personal fitness, currency, and stress), Passengers (their experience, comfort, and any pressure they may add), and Programming (the , , and ) — to decide whether to , , or the planned action.