Accident
Last updated: 21 December 2014
Status:Definitief
Datum:zaterdag 17 maart 2001
Tijd:07:05
Type:Silhouette image of generic A320 model; specific model in this crash may look slightly different
Airbus A320-212
Luchtvaartmaatschappij:Northwest Airlines
Registratie: N357NW
Constructienummer: 830
Bouwjaar: 1998
Aantal vlieguren:9346
Motoren: 2 CFMI CFM56-5A3
Bemanning:slachtoffers: 0 / inzittenden: 6
Passagiers:slachtoffers: 0 / inzittenden: 145
Totaal:slachtoffers: 0 / inzittenden: 151
Schade: Groot
Gevolgen: Repaired
Plaats:Detroit-Metropolitan Wayne County Airport, MI (DTW) (   Verenigde Staten)
Fase: Start (TOF)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Detroit-Metropolitan Wayne County Airport, MI (DTW/KDTW), Verenigde Staten
Vliegveld van aankomst:Miami International Airport, FL (MIA/KMIA), Verenigde Staten
Vluchtnummer: 985
Beschrijving:
Takeoff was initiated on runway 3C (8,500 feet by 200 feet, wet). The flight crew reported that at an airspeed of approximately 110 knots, the nose of the airplane began to lift off. The captain attempted to lower the nose, however, the airplane was unresponsive. The airplane became airborne and climbed to an altitude of 20 to 30 feet above the runway. The captain reduced the power on both engines and the airplane settled to the runway, striking the tail. The airplane traveled approximately 700 feet off the end of the runway where it came to rest in the muddy terrain. An emergency evacuation was performed during which the L2 evacuation slide did not deploy. During the investigation, NTSB determined that the airplane was loaded so that its center of gravity (CG), although within limits, was in the aft region of the permissible range. Further, the flight crew had incorrectly set the trim for the trimmable horizontal stabilizer (THS) at -1.7░UP (airplane nose up). This setting resulted in a pitch-up trim condition. The proper trim setting, 1.7░DN (airplane nose down), would have resulted in a correct trim condition for the way the airplane was loaded. The improperly set trim caused the nose of the airplane to lift off the runway prematurely.

PROBABLE CAUSE: "The pilot induced oscillations and the delay in aborting the takeoff. Factors associated with the accident were the first officer used an improper trim setting and the captain did not identify and correct the setting during the taxi checklist, and the wet runway conditions."

Bronnen:
» NTSB id CHI01FA104


Veiligheidsmaatregelen

FAA issued 1 Airworthiness Directive
NTSB issued 4 Safety Recommendations

Show all AD's and Safety Recommendations

Foto's

Add your photo of this accident or aircraft

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 Detroit-Metropolitan Wayne County Airport, MI en Miami International Airport, FL bedraagt 1834 km (1146 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
languages: English Franšais Nederlands Deutsch Espanol

Share
Share