Pan Am Flight 6 (registration N90943, and sometimes erroneously called Flight 943) was a round-the-world airline flight that ditched in the Pacific Ocean on October 16, 1956, after two of its four engines failed. Flight 6 left Philadelphia on October 12 as a DC-6B and flew eastward to Europe and Asia on a multi-stop trip. On the evening of October 15 the flight left Honolulu on a Boeing 377 Stratocruiser Clipper named Sovereign Of The Skies (Pan Am fleet number 943, registered N90943). The accident was the basis for the 1958 film Crash Landing.