What term is used when an aircraft arrives with sufficient fuel for its planned departure?

The term "Fuel On Board (FOB)" refers to the amount of fuel that an aircraft has at any given time, specifically upon arrival. When an aircraft arrives with sufficient fuel for its planned departure, it indicates that the fuel on board is adequately above the minimum required for safe operation and allows for the next leg of the journey without the need for an immediate refueling stop.

Understanding this concept is crucial as it relates to flight safety, operational efficiency, and regulatory compliance. It ensures that the aircraft can safely handle unexpected delays or diversions, maintaining operational readiness. The other terms provided do not accurately convey the specific condition of fuel sufficiency upon arrival in the context of departure planning, which is why they are not applicable in this scenario.