UMs: Aviation Mysteries

Another topic that I'm exited about for this week's unsolved mystery post. This time around we are looking at some aviation related mysteries. I think by now you know what to do. Just kidding! Here's what you are looking for, now go and read on:

The Lady Be Good, a wreck that inspired the Twilight Zone, Flight of the Phoenix, and others, but we still haven't solved where some of the crew ended up:
https://en.wikipedia.org/wiki/Lady_Be_Good_(aircraft)#Analysis_and_conclusions

A 'phantom' plane crash that nearly went unreported, but just can't be confirmed:
https://www.reddit.com/r/UnresolvedMysteries/comments/94wf4b/on_january_30_2004_several_people_witnessed_a/

The theft of an entire 727 in 2003 remains unsolved to this day, and no one can determine it's fate:
https://en.wikipedia.org/wiki/2003_Angola_Boeing_727_disappearance

A US Air Force Lieutenant is lost after being scrambled to intercept a UFO over Lake Superior:
https://en.wikipedia.org/wiki/Felix_Moncla