Accident description
Last updated: 24 September 2014
Status:
Date:Monday 23 November 1964
Time:13:09 UTC
Type:Silhouette image of generic B703 model; specific model in this crash may look slightly different
Boeing 707-331
Operator:Trans World Airlines - TWA
Registration: N769TW
C/n / msn: 17685/123
First flight: 1960
Engines: 4 Pratt & Whitney JT4A-12
Crew:Fatalities: 5 / Occupants: 11
Passengers:Fatalities: 45 / Occupants: 62
Total:Fatalities: 50 / Occupants: 73
Airplane damage: Damaged beyond repair
Location:Roma-Fiumicino Airport (FCO) (   Italy) show on map
Phase: Takeoff (TOF)
Nature:International Scheduled Passenger
Departure airport:Roma-Fiumicino Airport (FCO/LIRF), Italy
Destination airport:Athens-Ellinikon International Airport (ATH/LGAT), Greece
Flightnumber: 800
Narrative:
The Boeing 707 started its takeoff run on runway 25 at 13:05 GMT. While accelerating through 80 knots, the no. 4 engine instruments indicated zero thrust followed by the no. 2 engine thrust reverser deployment light. The crew aborted the takeoff at a speed below V1 at 800-900m down the runway. The plane decelerated slower than expected and veered to the right, until the no. 4 engine struck a pavement roller. The 707 caught fire and traveled another 260m before coming to rest, engulfed in flames.

PROBABLE CAUSE: "Damage to reverse thrust system of No.2 engine, not discernible by means of cockpit instruments, and consisting in the disconnection of a duct with resulting lack of pressure in the pneumatic clamshell door actuating mechanism.
This malfunction allowed in the development of considerable forward thrust by No.2 engine even though the four levers were in the "reverse" position."

Classification:

Runway excursion

Sources:
» ICAO Aircraft Accident Digest No.16 - Volume III, Circular 82-AN/69 (113-124)


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Map
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 Roma-Fiumicino Airport to Athens-Ellinikon International Airport as the crow flies is 1063 km (665 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs 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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Boeing 707

  • 13th loss
  • 858 built
  • 7th worst accident (at the time)
  • 26th worst accident (currently)
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 Italy
  • 2nd worst accident (at the time)
  • 6th worst accident (currently)
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