When an aircraft is responding to a TCAS RA, safety alerts regarding terrain and obstructions should be provided to whom?

• A. The aircraft with the RA only
• B. All other aircraft only
• C. The aircraft with the RA and all other aircraft
• D. No aircraft, it's not necessary

Answer: (C)

When an aircraft is responding to a Traffic Collision Avoidance System (TCAS) Resolution Advisory (RA), it is essential to provide safety alerts regarding terrain and obstructions to the aircraft with the RA as well as to all other aircraft in the vicinity. This is crucial for maintaining situational awareness and ensuring the safety of all aircraft in the airspace.

The aircraft experiencing the RA requires information about potential terrain and obstructions to make informed decisions in response to the advisory. Simultaneously, other aircraft in the vicinity also need to be aware of the situation. This communication helps prevent potential conflicts and ensures that all pilots are cognizant of surrounding aircraft maneuvers, especially when evasive actions are being taken.

By notifying both the aircraft with the RA and all other aircraft, air traffic control facilitates a united response to maintain safety during maneuvering. This coordinated effort is a fundamental aspect of air traffic management, ensuring that all operators are informed and can act accordingly to avoid accidents and maintain safe operation in congested airspace.