From Wikipedia:
Reeve Aleutian Airways Flight 8 was an American domestic flight from Cold Bay, Alaska, to Seattle, Washington, on June 8, 1983.
Shortly after takeoff, the Lockheed 188 Electra of Reeve Aleutian Airways was travelling over the Pacific Ocean when one of the propellers broke away from its engine and struck the fuselage, damaging the flight controls.
The pilots were able to make an emergency landing at Anchorage International Airport; none of the 15 passengers and crew on board were injured in the accident.
Video: From Wonder:
Reeve Aleutian Airways aircraft photo gallery: