American Schedules Last MD-80 Revenue Flight

September 4 is going to be a date many of us will remember. That day American Airlines will retire its remaining 26 McDonnell Douglas MD-80 aircraft, ending a 37-year-long flying career. Unveiled by McDonnell Douglas in 1977 as an evolution of the DC-9-50, the MD-80 was nicknamed "Mad Dog" while keeping the "Super 80." American became the first U.S. carrier to order it, after leasing 142 MD-80s to replace its Boeing 727 fleet. Along with its comfort and performance, both…