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Accident
Last updated: 22 October 2017
Status:Schlussbericht
Datum:Freitag 19 August 1994
Zeit:13:08
Flugzeugtyp:Silhouette image of generic MD11 model; specific model in this crash may look slightly different
McDonnell Douglas MD-11C
Fluggesellschaft:Alitalia
Kennzeichen: I-DUPO
Werknummer: 48429/500
Baujahr: 1992
Betriebsstunden:9390
Triebwerk: 3 General Electric CF6-80C2D1F
Besatzung:Todesopfer: 0 / Insassen: 14
Fluggäste:Todesopfer: 0 / Insassen: 253
Gesamt:Todesopfer: 0 / Insassen: 267
Sachschaden: leicht beschädigt
Konsequenzen: Repaired
Unfallort:Chicago-O'Hare International Airport, IL (ORD) (   USA)
Flugphase: Landung (LDG)
Betriebsart:Internationaler Linienflug
Flug von:Roma-Fiumicino Airport (FCO/LIRF), Italien
Flug nach:Chicago-O'Hare International Airport, IL (ORD/KORD), USA
Flugnummer:AZ664
Unfallbericht:
An Alitalia MD-11 passenger plane, registered I-DUPO, was damaged in a landing incident at Chicago-O'Hare International Airport, IL (ORD), USA. There were no injuries to the 14 crewmembers or 253 passengers.
The airplane was cleared for and flew an instrument landing system (ILS) approach to runway 22R, at ORD. The pilot flying was the first officer. He flew the airplane throughout the entire approach and landing on runway 22R. He had been flying for 10 hours and this was the only landing he made during the flight.
The airplane experienced a hard landing on initial touchdown. Subsequently, the nose tires failed, damage occurred to the general area of the nose landing gear support structure, and there was foreign object damage to the #1 and #3 engines. The flight data recorder (FDR) data indicated that the initial touchdown acceleration had a value of 1.9488 g's. Also, the fdr revealed that after touchdown, the airplane experienced four oscillations in the pitch axis. The maximum pitch angle during this time was +5.98 degrees nose up, and the minimum value was -2.46 degrees nose down. During this time frame, spoiler positions never exceeded 8.0 degrees of deflection and the nose weight on wheels parameter changed four times.

Probable Cause:

PROBABLE CAUSE: "The first officer's improper flare and improper use of flight controls during the landing flare/touchdown."

Informationsquelle:
» NTSB


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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 Roma-Fiumicino Airport to Chicago-O'Hare International Airport, IL as the crow flies is 7689 km (4805 miles).

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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