Dang, you're tough to please. Guy volunteers to get his tail shot off in a tin can in the sky, but it turns out he's not a good enough flyer. Are you saying he must have failed on purpose? Do we have some way of knowing? And do we know there was no pressing need for him to take care of his mother and grandmother?
Unconnected, but it seems odd that whatever source doesn't refer to the service as the Army Air Corps, which was the name on all my father's manuals and such.
You ENLIST in MY Military and you DO your ENTIRE Obligation. I did(20 Years, 1 Month, 18 Days/US Navy), My Son did(4 Years/US Navy) My other Son did(4 years/United States Marines). So sorry, you sign up for MY MILITARY you either come back carrying you shield or ON IT!