ASN Aircraft accident Douglas DC-6B I-LEAD Paris-Orly Airport (ORY)
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Status:Accident investigation report completed and information captured
Date:Saturday 24 November 1956
Type:Silhouette image of generic DC6 model; specific model in this crash may look slightly different
Douglas DC-6B
Operator:Linee Aeree Italiane - LAI
Registration: I-LEAD
MSN: 45075/731
First flight: 1956
Engines: 4 Pratt & Whitney R-2800
Crew:Fatalities: 10 / Occupants: 10
Passengers:Fatalities: 24 / Occupants: 25
Total:Fatalities: 34 / Occupants: 35
Aircraft damage: Damaged beyond repair
Location:0,6 km (0.4 mls) W of Paris-Orly Airport (ORY) (   France)
Phase: Initial climb (ICL)
Nature:International Scheduled Passenger
Departure airport:Paris-Orly Airport (ORY/LFPO), France
Destination airport:Shannon Airport (SNN/EINN), Ireland
Flightnumber: 451
DC-6B I-LEAD operated on the flight Rome-Paris-Shannon-New York. The aircraft took off from Paris-Orly runway 26. Some 10-15 seconds later, altitude was lost and the DC-6 struck a house 600 m past the runway end. A fire erupted. Weather at the time of the accident was misty with a visibility of 2.2 m, wind 320 deg/6 knots and a 4/8 ceiling at 240 m with temperature -2deg C.
Among the fatalities was Guido Cantelli, a well-known Italian orchestral conductor.

Probable Cause:

PROBABLE CAUSE: "The aircraft's slight loss of altitude soon after take-off was the main cause of the accident. There is no explanation for this loss of altitude. Although the regulations in force were observed, the presence of unmarked obstructions in the take-off path constituted an aggravating factor. The initial and direct cause of the accident remains unknown."

» ICAO Accident Digest No.8, Circular 54-AN/49 (159-165)


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This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Paris-Orly Airport to Shannon Airport as the crow flies is 901 km (563 miles).
Accident location: Approximate; accuracy within a few kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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Douglas DC-6

  • 704 built
  • 31st loss
  • 25th fatal accident
  • 13th worst accident (at the time)
  • 28th worst accident (currently)
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  • 7th worst accident (at the time)
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