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Accident
Last updated: 17 October 2017
Status:Definitief
Datum:vrijdag 19 augustus 1994
Tijd:13:08
Type:Silhouette image of generic MD11 model; specific model in this crash may look slightly different
McDonnell Douglas MD-11C
Luchtvaartmaatschappij:Alitalia
Registratie: I-DUPO
Constructienummer: 48429/500
Bouwjaar: 1992
Aantal vlieguren:9390
Motoren: 3 General Electric CF6-80C2D1F
Bemanning:slachtoffers: 0 / inzittenden: 14
Passagiers:slachtoffers: 0 / inzittenden: 253
Totaal:slachtoffers: 0 / inzittenden: 267
Schade: Licht
Gevolgen: Repaired
Plaats:Chicago-O'Hare International Airport, IL (ORD) (   Verenigde Staten)
Fase: Landing (LDG)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Roma-Fiumicino Airport (FCO/LIRF), ItaliŽ
Vliegveld van aankomst:Chicago-O'Hare International Airport, IL (ORD/KORD), Verenigde Staten
Vluchtnummer:AZ664
Beschrijving:
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."

Bronnen:
» NTSB


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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 Roma-Fiumicino Airport en Chicago-O'Hare International Airport, IL bedraagt 7689 km (4805 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkís 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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