NJ Passenger's Mid-Flight Meltdown On Camera, Allegedly Asked Attendant For Sex

An out-of-control passenger is accused of causing a total disruption up in the air -- forcing a plane to make an emergency landing ... this after he allegedly hit on a flight attendant and tried to yank open the door mid-flight. Feds have ID'd the alleged troublemaker as Eric Nicholas Gapco from Delanco, NJ ... who you can see in video footage captured by fellow passengers seemingly losing it on the American…