Identify a key element of an airport emergency plan.

A key element of an airport emergency plan is communication protocols among various emergency response agencies. Effective communication is crucial during an emergency situation, as it ensures that all responding agencies are informed and coordinated in their efforts. This includes the seamless exchange of information regarding the nature of the emergency, the resources required, and the specific roles and responsibilities of each agency involved in the response.

Clear communication protocols help to eliminate confusion, reduce response times, and enhance overall effectiveness during an incident. By establishing these protocols beforehand, airports can facilitate a more organized and efficient response when emergencies arise. In contrast, vendor management procedures, technical specifications for aircraft maintenance, and ticketing and customer service protocols, while important in their respective areas, do not specifically address the immediate needs and coordination required during an emergency response.