Frame by frame, six photos released by federal investigators graphically captured horrifying images of the UPS plane turning into a fireball.

The fiery crash of a UPS plane shortly after its left engine flew off its wing and sparked a massive fire during takeoff could spell the end of the 109 remaining MD-11 airliners that have been exclusively hauling cargo for more than a decade.

A quiet Thursday night at Louisville’s busy airfield turned grim when a UPS cargo jet went down just after liftoff, exploding in a flash that rattled nerves across town and sent ripples through the flight industry.