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Accident
Last updated: 15 December 2017
Status:Schlussbericht
Datum:Donnerstag 24 September 1959
Zeit:22:24 UTC
Flugzeugtyp:Silhouette image of generic DC7 model; specific model in this crash may look slightly different
Douglas DC-7C
Fluggesellschaft:Transports Aériens Intercontinentaux - TAI
Kennzeichen: F-BIAP
Werknummer: 45366/892
Baujahr: 1957
Betriebsstunden:5844
Triebwerk: 4 Wright R-3350 (988TC18)
Besatzung:Todesopfer: 9 / Insassen: 9
Fluggäste:Todesopfer: 45 / Insassen: 56
Gesamt:Todesopfer: 54 / Insassen: 65
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:3 km (1.9 Meilen) SW of Bordeaux-Mérignac Airport (BOD) (   Frankreich)
Flugphase: Anfangssteigflug (ICL)
Betriebsart:Internationaler Linienflug
Flug von:Bordeaux-Mérignac Airport (BOD/LFBD), Frankreich
Flug nach:Bamako Airport (BKO/GABS), Mali
Flugnummer: 307
Unfallbericht:
TAI flight 307 was a regular passenger service from Paris-Orly, France to Bordeaux, France, Bamako, Mali and Abidjan, Ivory Coast.
The DC-7 took off from Bordeaux runway 23 at 22:23 UTC for the leg to Bamako. After leaving the ground and reaching a height of about 30 m, the aircraft overflew a zone without luminous ground markings. The aircraft didn't gain altitude and collided with pinetrees 2950 m from the start of the takeoff.

Probable Cause:

PROBABLE CAUSE: "The Board considered that the accident was probably caused by the most unfavourable combination of several of the factors set forth under "Theories considered as to the cause of the accident."
The reconstructed flight showed that during the first segment of climbout and during a very short critical phase [about 10sec beginning 40sec after full throttle] a slight increase in speed will produce a considerable decrease in rate of climb or even a slight loss of altitude.
In view of the rapid sequence of cockpit operations during this phase, together with the rapid variation in flight parameters, and the lack of precision - even inaccuracy - of readings of certain instruments, and lacking time reference and external visual references, a pilot may follow a line of flight that will bring the aircraft back near the ground if, during this period, optimum climbing speed is not maintained and the altimeter is not carefully watched."

Accident investigation:
cover
Investigating agency: BEA
Status: Investigation completed
Duration: 1 year
Accident number: Report f-ap590924
Download report: Final report

Informationsquelle:
» ICAO Circular 64-AN/58 (41-50)


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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 Bordeaux-Mérignac Airport to Bamako Airport as the crow flies is 3630 km (2269 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-7

  • 339 built
  • 9th loss
  • 6th Fataler Unfall
  • 3rd worst accident (Zu diesem Zeitpunkt)
  • 6th worst accident (Momentan)
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 Frankreich
  • 2nd worst accident (Zu diesem Zeitpunkt)
  • 13th worst accident (Momentan)
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