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A Harmless Prank

A long-ago incident nearly takes down an American Airlines Douglas DC-4.

[Credit: Public Domain]
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Key Takeaways:

  • A 1947 American Airlines DC-4 experienced a violent mid-air upset, performing a half outside loop, caused by Captain Sisto engaging and then improperly disengaging the elevator gust lock as a prank.
  • The sudden maneuver, which threw pilots and passengers around, was skillfully recovered by Captain Logan, resulting in only minor injuries and no fatalities.
  • The ensuing investigation revealed Sisto's prank and led to the revocation of his commercial pilot's certificate for demonstrating a disregard for air safety.
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American Airlines Flight 311 departed New York on the evening of October 7, 1947, bound for Dallas and Los Angeles. Three pilots, all qualified captains, were aboard. The airplane was a Douglas DC-4 Skymaster, military designation C-54, the first of the series of four-radial-engine Douglas transports that ended with the DC-7. With a wingspan of 117 feet and room for as many as 80 passengers, it was a big airplane for its time. Unlike later models, however, it was not pressurized.

This Article First Appeared in FLYING Magazine

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Peter Garrison

Peter Garrison taught himself to use a slide rule and tin snips, built an airplane in his backyard, and flew it to Japan. He began contributing to FLYING in 1968, and he continues to share his columns, ""Technicalities"" and ""Aftermath,"" with FLYING readers.

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