Dramatic photos of doomed UPS plane show the aircraft on fire and its engine flying off

Frame by frame, six photos released by federal investigators on Thursday graphically captured horrifying images of ill-fated Flight 2976 as it turned into a deadly fireball along a Kentucky airport runway.

The chilling sequence first shows an engine coming loose from the UPS cargo plane during takeoff. The engine pops off the plane as fire erupts in the next image, followed by the blazing engine catapulting off the stricken plane. The final images show the plane ablaze as it gets airborne, leaving behind trails of smoke.