Descripción del Accidente ASN 30 JUL 1998 HAL/Dornier 228-201 VT-EJW - Cochin Airport (COK)
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Estado:Accident investigation report completed and information captured
Fecha:jueves 30 julio 1998
Tipo:Silhouette image of generic D228 model; specific model in this crash may look slightly different
HAL/Dornier 228-201
Operador:Alliance Air
Registración: VT-EJW
Numéro de série: 8075/HAL1007
Año de Construcción: 1986
Tripulación:Fatalidades: 3 / Ocupantes: 3
Pasajeros:Fatalidades: 3 / Ocupantes: 3
Total:Fatalidades: 6 / Ocupantes: 6
Víctimas en Tierra:Fatalidades: 3
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:Cochin Airport (COK) (   India)
Fase: Ascenso Inicial (ICL)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Cochin Airport (COK/VOCC), India
Aeropuerto de Llegada:Thiruvananthapuram International Airport (TRV/VOTV), India
Número de Vuelo: 503
The HAL-manufactured Dornier 228 was operating on a flight from Agathi to Thiruvananthapuram via Cochin.
The aircraft took off from runway 17 of Cochin Airport. After attaining a height of about 400 feet it was seen pitching up steeply to a near vertical attitude and thereafter appeared to perform a manoeuvre similar to a stall turn to the right
and crashed on the roof top of the Component Repair Shop (CRS) building of the Naval Aircraft Yard. After the impact the aircraft caught fire and was completely destroyed. Three persons working in CRS received fatal and six other persons received minor injuries.

Probable Cause:

PROBABLE CAUSE: "After take off the aircraft pitched up uncontrollably, stalled fell to its right and crashed. The uncontrollable pitch up was caused by sudden uncommanded downward movement of the Trimmable Horizontal Stabilizer leading edge. This was due to partial detachment of its 'actuator forward bearing support' fitting due non installation of required hi-lok fasteners. Poor aircraft maintenance practices at Short Haul Operations Department contributed to the accident. "

» Civil aviation aircraft accident summary for the year 1998 (DGAC India)


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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 Cochin Airport to Thiruvananthapuram International Airport as the crow flies is 177 km (110 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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