At facilities without ATIS, how long should wind shear information be broadcast to all arriving and departing aircraft?

The correct answer is that wind shear information should be broadcast for 20 minutes to all arriving and departing aircraft at facilities without Automatic Terminal Information Service (ATIS). This timeframe is critical because wind shear can significantly affect the safety and performance of aircraft during takeoff and landing phases, leading to dangerous situations if pilots are not adequately informed.

Broadcasting wind shear information for 20 minutes allows enough time for aircraft in the vicinity to receive the warning, including any incoming or outgoing flights that may be affected. It ensures that the information remains relevant and timely, as conditions can change rapidly in terminal airspace. This practice is in line with established guidelines for maintaining safety and enhancing situational awareness for pilots operating in environments where ATIS is not available.

Providing updates and essential information at regular intervals enhances the overall safety management at the airport, ensuring that pilots can make informed decisions based on the latest conditions they may encounter. Thus, the protocol of a 20-minute broadcast reflects an effective balance between timely dissemination of critical information and the operational realities faced by pilots and air traffic controllers.