The Constellation suffered two accidents in 1946 which delayed its career as a passenger airliner. On 18 June, the engine of a Pan American aircraft caught fire and fell off the wing. The flight crew was able to make an emergency landing with no loss of life. However, on 11 July, a TWA Connie fell victim to in flight fire, taking the lives of five of the six people on board. The accidents prompted the suspension of the Constellation's airworthiness certificate until Lockheed could retrofit the design to avoid repeats of the problems.
The Constellation, like other piston engine-powered airliners of the day, e.g. DC-7, proved prone to frequent engine failures, earning it the nickname of the "world's finest three-motor airliner" in some circles.
c/n 4543 CF-TGD L-1049C of Trans Canada Airlines during an unplanned stop
at London Heathrow to replace number four engine (in the foreground) in 1959.
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