In the meantime the EC-121 filed a scheduled activity report by radio on time at 13:00 and did not indicate anything out of the ordinary, but this was the last message sent from the plane. Twenty-two minutes later the radars lost the picture of the MiGs and did not reacquire it until 13:37, where they were closing with Deep Sea 129 for a probable intercept.
The EC-121 transmitted its scheduled activity report via radio at 13:00 without any anomalies, but this was the last communication received from the plane. Twenty-two minutes later, radar lost sight of the MiGs and did not regain contact until 13:37 when they were closing in on Deep Sea 129 for a potential interception.