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Last updated: 20 November 2019
Statuts:
Date:mercredi 28 juillet 1976
Heure:09:37
Type/Sous-type:Silhouette image of generic IL18 model; specific model in this crash may look slightly different
Iliouchine Il-18V
Compagnie:CSA Ceskoslovenské Aerolinie
Immatriculation: OK-NAB
Numéro de série: 189001605
Année de Fabrication: 1959
Moteurs: 4 Ivchenko AI-20K
Equipage:victimes: 6 / à bord: 6
Passagers:victimes: 70 / à bord: 73
Total:victimes: 76 / à bord: 79
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:1,5 km (0.9 milles) NW of Bratislava-Ivanka Airport (BTS) (   Slovakie)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Praha-Ruzyne International Airport (PRG/LKPR), République tchèque
Aéroport de destination:Bratislava-Ivanka Airport (BTS/LZIB), Slovakie
Numéro de vol:001
Détails:
A CSA Ceskoslovenské Aerolinie Ilyushin 18 passenger plane was destroyed when it crashed into a lake near Bratislava-Ivanka Airport (BTS).
Flight OK001 departed Prague (PRG) at 08:52 on a domestic service to Bratislava (BTS).
The ILS approach to runway 22 at Bratislava was unstabilized with a rate of descent of 22 m/s instead of 10 m/s. The speed varied from 435 to 225 km/h instead of 269 km/h, and the flaps were selected down from 0 degrees directly to full flaps. Below an altitude of 1000 m the crew used no. 2 and no. 3 engine reverse thrust. The no. 3 engine failed during this operation and the no. 4 prop was feathered by mistake. At 50 m above the threshold the crew decided to overshoot. The no. 4 engine was restarted at 40 m, but the right bank increased. The crew lost control and the Il-18 struck the water of the Zlaté piesky lake in a 60 degree right bank and a 60 degree nose down attitude. Four passengers were pulled out the wreckage alive, but one of them later died in hospital.

Probable Cause:

CAUSES:
- Use of thrust reversal at altitude under 1 000 m (3280 feet)
- Improper manipulation of the thrust levers of the inner engines
- Reducing speed under the allowed limit on final approach
- Erroneous feathering of the engine number 4 propeller
- Failure to bank the plane towards the working engines side
- The immediate cause was the attempt to start engine number 4 at low speed and altitude

Sources:
» Soviet Transports


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Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Praha-Ruzyne International Airport et Bratislava-Ivanka Airport est de 301 km (188 miles).
Accident location: Exact; deduced from official accident report.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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Ilyushin Il-18

  • 569 built
  • 70ème loss
  • 45ème accident fatal
  • le accident 12ème le plus grave (à ce moment là)
  • le accident 15ème le plus grave (en ce moment)
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 Slovakie
  • le accident 2ème le plus grave (à ce moment là)
  • le accident 2ème le plus grave (en ce moment)
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