Accident
Last updated: 2 September 2014
Statuts:Enquête Officielle
Date:mercredi 31 août 1988
Heure:09:01
Type/Sous-type:Silhouette image of generic B722 model; specific model in this crash may look slightly different
Boeing 727-232
Compagnie:Delta Air Lines
Immatriculation: N473DA
Numéro de série: 20750/992
Année de Fabrication: 1973
Heures de vol:43023
Moteurs: 3 Pratt & Whitney JT8D-15
Equipage:victimes: 2 / à bord: 7
Passagers:victimes: 12 / à bord: 101
Total:victimes: 14 / à bord: 108
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Dallas/Fort Worth International Airport, TX (DFW) (   Etats-Unis d'Amérique) show on map
Élévation des lieux de l'accident: 185 m (607 feet) amsl
Phase de vol: Au décollage (TOF)
Nature:Transport de Passagers Nat.
Aéroport de départ:Dallas/Fort Worth International Airport, TX (DFW/KDFW), Etats-Unis d'Amérique
Aéroport de destination:Salt Lake City International Airport, UT (SLC/KSLC), Etats-Unis d'Amérique
Numéro de vol:1141
Détails:
Flight DL1141 (Jackson - Dallas - Salt Lake City) left Gate 15 at 08:30 and was instructed to taxi to runway 18L. When first in line for take-off (at 08:59) the flight was cleared for takeoff. The takeoff was uneventful until the airplane reached the rotation phase (at 154 knots, 6017 feet down the runway). As the main gear wheels left the ground, the airplane began to roll violently, causing the right wingtip to contact the runway (1033 feet after lift-off), followed by compressor surges. The plane continued and struck the ILS localizer antenna array 1000 feet past the end of runway 18L. After impacting the antenna installation, the airplane remained airborne for an additional 400 feet, then struck the ground, traversed a ground depression and slid sideways until it came to rest near the airport perimeter fence, 3200 feet from the runway end. Parts of the aircraft had separated in the slide and a fire had erupted in the right wing area, quickly engulfing the rear, right side of the airplane after it came to rest.

PROBABLE CAUSE: "(1) The captain and first officer's inadequate cockpit discipline which resulted in the flight crew's attempt to takeoff without the wing flaps and slats properly configured; and (2) the failure of the takeoff configuration warning system to alert the crew that the airplane was not properly configured for the takeoff.
Contributing to the accident was Delta's slow implementation of necessary modifications to its operating procedures, manuals, checklists, training and crew checking programs which were necessitated by significant changes in the airline following rapid growth and merger.
Also contributing to the accident was the lack of sufficiently aggressive action by the FAA to have known deficiencies corrected by Delta and the lack of sufficient accountability within the FAA's air carrier inspection process." 

Sources:
» NTSB/AAR-89/04

Official accident investigation report
investigating agency: National Transport Safety Bureau (NTSB) - USA
report status: Final
report number: NTSB/AAR-89-04
report released:26-SEP-1989
duration of investigation:391 days (1 year )
download report: Delta Air Lines, Inc., Boeing 727-232, N473DA, Dallas-Fort Worth International Airport, Texas, August 31, 1988. (NTSB/AAR-89-04)
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Opérations de secours

NTSB issued 14 Safety Recommendations

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Photos

photo of Boeing 727-232 N473DA
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Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Dallas/Fort Worth International Airport, TX et Salt Lake City International Airport, UT est de 1579 km (987 miles).

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