What happens when you lose communication while on radar vectors to an ILS approach?

When you lose communication while being on radar vectors for an ILS approach, the appropriate action is to follow the lost communication instructions. These procedures are designed to ensure that, even in the absence of communication with Air Traffic Control (ATC), the pilot can safely navigate and execute the approach.

Lost communication procedures generally involve continuing the approach and utilizing the last received clearance and instructions given by ATC. Additionally, if a specific clearance for the approach was received, pilots are expected to comply with those instructions while also maintaining situational awareness of their position and altitude.

This choice reflects the standard protocol for ensuring safety and continuity of the flight. It allows the pilot to maintain the planned flight path while preparing for a possible missed approach or to land if they are in a position to safely do so, all without compromising safety or deviating unnecessarily from established procedures.