What are the recommended actions in the event of an ATC instruction contradicting TCAS RA?

Prioritizing TCAS RA commands over ATC instructions is the correct approach in this situation. TCAS, or Traffic Collision Avoidance System, is designed to provide real-time guidance to prevent mid-air collisions by alerting pilots to potential conflicts with other aircraft. When an RA, or Resolution Advisory, is issued by TCAS, it represents an immediate safety concern and provides critical instructions for maintaining safe separation from other aircraft.

The fundamental purpose of TCAS is to enhance safety by ensuring pilots respond to imminent threats regardless of any conflicting instructions from air traffic control (ATC). This prioritization is backed by aviation regulations, emphasizing that pilot actions prompted by a TCAS RA should always take precedence given the potential life-threatening implications of a collision.

Following ATC commands in the face of a TCAS RA could lead to dangerous situations, as it may compromise the aircraft's immediate safety. Seeking clarification from ATC or delaying actions until confirmation may introduce further risks during an already critical moment. Thus, adhering to TCAS RA commands ensures the highest level of safety and aligns with established aviation safety protocols.