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Accident
Last updated: 21 October 2017
Status:Definitief
Datum:donderdag 24 september 1959
Tijd:22:24 UTC
Type:Silhouette image of generic DC7 model; specific model in this crash may look slightly different
Douglas DC-7C
Luchtvaartmaatschappij:Transports Aériens Intercontinentaux - TAI
Registratie: F-BIAP
Constructienummer: 45366/892
Bouwjaar: 1957
Aantal vlieguren:5844
Motoren: 4 Wright R-3350 (988TC18)
Bemanning:slachtoffers: 9 / inzittenden: 9
Passagiers:slachtoffers: 45 / inzittenden: 56
Totaal:slachtoffers: 54 / inzittenden: 65
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:3 km (1.9 mijl) SW of Bordeaux-Mérignac Airport (BOD) (   Frankrijk)
Fase: Initiële klim (ICL)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Bordeaux-Mérignac Airport (BOD/LFBD), Frankrijk
Vliegveld van aankomst:Bamako Airport (BKO/GABS), Mali
Vluchtnummer: 307
Beschrijving:
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

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


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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Bordeaux-Mérignac Airport en Bamako Airport bedraagt 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
  • 9e ongeval
  • 6e dodelijk ongeval
  • 3e zwaarste ongeval (toen het plaatsvond)
  • 6e zwaarste ongeval (op dit moment)
» safety profile

 Frankrijk
  • 2e zwaarste ongeval (toen het plaatsvond)
  • 13e zwaarste ongeval (op dit moment)
» safety profile