A second unanswered question is what was it that the
F-89 merged with on radar before contact was lost with the F-89?
According to the report documenting the USAF Official
Accident Board's Investigation, the F-89's radar return was observed to
merge with the return from the RCAF C-47 before contact was lost with the
F-89.
Keyhoe reports he was told that the F-89 radar return
didn't merge with anything on radar. The source told Keyhoe that the F-89
was miles away from the other blip when it crashed into Lake Superior.
Since that time, others have made claims that the
F-89's return must have merged with the return from a flock of birds or
perhaps a phantom radar echo from the F-89.
Keyhoe's account suggests that it the F-89 was chasing
a UFO when it observed to merge with the UFO on radar.