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Last updated: 18 September 2021
Statuts:Enquête Officielle
Date:samedi 23 septembre 1989
Heure:19:53
Type/Sous-type:Silhouette image of generic D228 model; specific model in this crash may look slightly different
Dornier 228-201
Compagnie:Vayudoot
Immatriculation: VT-EJF
Numéro de série: 8052
Année de Fabrication: 1985
Moteurs: 2 Garrett TPE331-5-252D
Equipage:victimes: 3 / à bord: 3
Passagers:victimes: 8 / à bord: 8
Total:victimes: 11 / à bord: 11
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:9,5 km (5.9 milles) SE of Indapur (   Inde)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Pune-Lohegaon Airport (PNQ/VAPO), Inde
Aéroport de destination:Hyderabad-Begumpet Airport (HYD/VOHY), Inde
Numéro de vol:PF624
Détails:
Dornier 228-201 VT-EJF was operating Vayudoot flight PF624 from Pune to Hyderabad in India. The aircraft took off from Pune at 19:28 hours. The flight was uneventful up to 19:43. Soon thereafter, the aircraft started loosing height rapidly with increasing speed. The pilot attempted recover the aircraft from the dive but the aircraft continued to lose height till it impacted the back waters Ujjaini Dam.
The accident happened in night time conditions with isolated thunderstorms and localised heavy rain in the area.

Probable Cause:

The cause of the accident has been attributed as:
"Entry of the aircraft into severe turbulent conditions while passing through clouds, leading to rapid loss of height of the aircraft because of inappropriate action by the pilots. As a result, the aircraft entered a spiral. This was not recognised by the pilots, resulting in initiation of incorrect recovery action by pulling back on the control column instead of first levelling the wings. The possibility of jamming of the elevator of the aircraft cannot be ruled out as one of the probable cause of the accident."
Disorientation; unpreparedness of the pilots and their failure to recognise in time, a serious situation and take appropriate corrective action; long breaks in night flying in the case of the captain and temporary malfunction or sluggishness of ADI are the contributory causes.

Sources:
» Civil aviation aircraft accident summary for the year 1989 (DGAC India)


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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 Pune-Lohegaon Airport et Hyderabad-Begumpet Airport est de 493 km (308 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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