What does the term "redispatch" refer to in aviation operations?

The term "redispatch" in aviation operations specifically refers to the process of obtaining new clearance for a flight after it has been altered from its original flight plan. This typically occurs when a flight operation changes due to various factors, such as weather conditions, deviations from the planned route, or operational adjustments that necessitate a new authorization from air traffic control or the relevant authorities.

This procedure is critical to ensure safety and compliance with regulations, as any significant changes in the flight's path or operations must be formally approved to avoid conflicts in airspace and ensure that all safety protocols are adhered to. In essence, redispatching ensures that flight crews have the most current and accurate information about their flight parameters, which is vital for safe operations.