Plain English Meaning
The last round of planning a pilot does just before getting in the aircraft, using the most up-to-date information for the flight they are about to make.
Full Definition
The final stage of flight planning carried out shortly before departure, in which the pilot reviews current weather, NOTAMs, aircraft status, weight and balance, performance data, fuel requirements, and the specific route and alternates for the actual flight about to be flown.
Context Anchor
Used in preflight risk decisions, especially before dispatching a training flight or making a final .