If identification is questionable for any reason, what is preferred to terminating radar service?

When dealing with a situation where identification is questionable, the preferred action is to conduct a re-identification of the aircraft. This step ensures that the radar controller verifies the identity of the aircraft before making any further decisions regarding service. Re-identifying an aircraft helps maintain safety and minimizes the risk of potential conflicts or miscommunication. It reinforces the importance of situational awareness and accurate identification in air traffic control, particularly in busy or complex airspace.

Reporting to a supervisor or consulting a flight plan might not provide immediate clarity regarding the aircraft's identity, while blindly continuing service without reconfirmation could lead to significant operational risks. Therefore, re-identification serves as a vital protocol to ensure an accurate and effective flow of traffic and to uphold safety standards in airspace management.