What is one of the criteria for moving an aircraft?

Moving an aircraft involves several safety and operational criteria, one of which is that the aircraft must be visually inspected. This visual inspection is crucial to ensure that there are no visible leaks, damage, or hazards that might affect the aircraft's integrity or safety while being moved. It allows personnel to identify any obvious issues that could lead to complications during operation or transport.

Visual inspections serve as a precautionary measure to maintain safety standards and operational readiness. Ensuring that the aircraft is in suitable condition before moving it helps prevent accidents and ensures that the crew can carry out their operations effectively.

The other criteria listed, while they may be important in various contexts, do not specifically pertain to the immediate requirement of ensuring the aircraft's readiness for movement.