June 21 (UPI) -- An unruly passenger bit a fellow flyer and started throwing punches aboard an American Airlines flight on Sunday, according to audio of a pilot's conversation with air traffic controllers. A recording first obtained by CBS News and then posted online by aviation industry monitors shows the incident happened aboard American Airlines flight AA3046 from Charlotte, N.C., to Philadelphia. In it, the pilot of the Airbus A320 tells controllers to have emergency medics and law