In relation to TCAS, what must pilots comply with after being informed of an RA?

When pilots receive a Resolution Advisory (RA) from the Traffic Collision Avoidance System (TCAS), it is crucial to understand their responsibilities immediately after responding to the RA. The correct approach involves reverting to previous air traffic control (ATC) clearances or instructions only after the RA maneuver has been safely completed.

This practice helps ensure that pilots maintain situational awareness and coordinate with ATC appropriately once the immediate threat has been resolved. The RA issued by TCAS takes precedence for immediate actions to prevent a collision, emphasizing the need for pilots to execute the necessary maneuvers. Once the situation stabilizes and the RA is no longer active, pilots can resume their prior clearances, which is essential for returning to normal flight operations while maintaining communication with ATC.

Engaging in corrective actions without ATC notification, as suggested by one of the other options, can lead to further confusion and potential safety issues in busy airspace. Similarly, reporting to other pilots or submitting a report after the incident are important, but these actions do not address the immediate compliance requirements necessary during an RA. Thus, the reliance on established protocols after an RA is correctly highlighted in the choice that involves reverting to previous instructions post-maneuver completion.