In case of two-way radio communication failure while flying in IFR weather conditions, what altitude and route should the pilot follow?

In the event of a two-way radio communication failure while flying under Instrument Flight Rules (IFR), the correct course of action is to continue on the specified flight route while maintaining the highest altitude from the last assigned altitude, the altitude that was expected by air traffic control, or the Minimum En Route Altitude (MEA).

This procedure is in line with standard aviation practices designed to ensure safety and compliance with air traffic control instructions. By adhering to the last assigned altitude, the pilot remains on the path established by air traffic control, minimizing the risk of lateral deviation from the intended route and potential conflicts with other air traffic. Maintaining the MEA ensures that the aircraft remains clear of terrain and obstacles, providing an additional layer of safety.

Continuing on the flight route rather than deviating to a new route or destination allows the pilot to remain predictable in their actions and ensures that surrounding traffic can better anticipate movements. This is crucial in busy airspace and in IFR conditions where visibility is limited.