During a flight approach, which action should be taken if radar service is interrupted and you are NORDO?

When radar service is interrupted and you are NORDO (No Radio), the most appropriate action is to perform a normal break into the traffic pattern. This approach ensures that you maintain situational awareness and follow standard operating procedures while approaching the airport.

When entering the traffic pattern without radio communication, it's essential to adhere to the predetermined flight patterns and visual flight rules. By performing a normal break, you're effectively signaling your intentions to other pilots through your actions, and using established patterns helps maintain safety in the airspace.

The other options may lead to confusion or unsafe situations. Proceeding directly to landing could pose risks, as other aircraft may not be aware of your intentions. Circling back to home base doesn't provide a clear plan for landing and could complicate the situation further. Contacting other pilots might not be feasible or effective if you are unable to communicate via radio. Therefore, breaking into the traffic pattern serves as a safer and more recognized method for managing the approach when communication is disrupted.