Overview
Three airplanes—an AT-401, an AT-402, and an AT-502—were conducting a cross-country formation flight. Initially, the AT-401 was the lead aircraft, the AT-402 held the number 2 position, and the AT-502 was the trailing airplane.
Radio Communication Problems
During the flight, the AT-401 experienced radio communication issues. When its pilot was unable to establish contact with air traffic control at the destination airport, he transferred the lead to the AT-502.
Misunderstanding of New Formation Order
A misunderstanding arose regarding the new formation order after the leadership change. The AT-401 pilot believed he was to transition to the number 2 position, with the AT-402 taking the trail. In contrast, the AT-402 pilot thought that the AT-401 would assume the trail position and that he would remain the number 2 airplane in the formation and landing sequence.
Approach and Landing Sequence
According to the AT-401 pilot, during the transition from base leg to final approach, his airplane passed through the glare of the setting sun. He stated that he concentrated on maintaining his relative position to the lead aircraft. He subsequently landed behind the AT-502 and taxied off the runway.
The AT-402 pilot reported that he also landed behind the AT-502. During the rollout, he felt his airplane shudder as the AT-401 impacted his vertical stabilizer and rudder. The AT-401 then passed over his airplane and landed on the runway ahead of him.
Conclusion
The collision resulted from a miscommunication about the formation order after the lead was transferred due to radio issues. No further details about injuries, damage extent, or other factors are available from the source.