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Last updated: 3 December 2021
Statuts:Enquête Officielle
Date:jeudi 4 août 2016
Heure:21:02
Type/Sous-type:Silhouette image of generic B733 model; specific model in this crash may look slightly different
Boeing 737-3H4 (WL)
Compagnie:Southwest Airlines
Immatriculation: N368SW
Numéro de série: 26579/2473
Année de Fabrication: 1993-05-05 (23 years 3 months)
Heures de vol:72354
Moteurs: 2 CFMI CFM56-3B1
Equipage:victimes: 0 / à bord: 6
Passagers:victimes: 0 / à bord: 129
Total:victimes: 0 / à bord: 135
Dégats de l'appareil: Substantiels
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Baltimore/Washington International Thurgood Marshall Airport, MD (BWI) (   Etats-Unis d'Amérique)
Phase de vol: Tracté (PBT)
Nature:Transport de Passagers Nat.
Aéroport de départ:Baltimore/Washington International Thurgood Marshall Airport, MD (BWI/KBWI), Etats-Unis d'Amérique
Aéroport de destination:Atlanta-William B. Hartsfield International Airport, GA (ATL/KATL), Etats-Unis d'Amérique
Numéro de vol:WN149
Détails:
Southwest Airlines flight 149, a Boeing 737-300, N368SW, experienced a failure of the nose landing gear during pushback from the gate at the Baltimore/Washington-Thurgood Marshall International Airport, Maryland, USA. The aircraft was substantially damaged and there were no injuries to the 6 crewmembers or 129 passengers but the airplane was substantially damaged.
According to the flight crew, as the pushback tug was maneuvering the aircraft off the gate, the flight crew felt the front of the airplane bounce up and down, and then came to rest on the nose. The passengers were deplaned via air stairs.

The nose gear collapsed in a forward direction, resulting in substantial damage to the gear structure, the nose gear well, and crushing the forward bulkhead. An airport surveillance camera video was obtained, which showed the tug pushing the aircraft at approximately 6 knots. The tug specifications indicate that speed could be achieved only in second gear or higher. The airline general operating manual specifies that pushback must be conducted in low or first gear, and at a walking speed.

As a result of the damage sustained, retirement of the aircraft was moved forward.

Probable Cause:

PROBABLE CAUSE: "The tug operators excessive speed during pushback."

Sources:
» NTSB


Photos

photo of Boeing-737-3H4-N368SW
accident date: 04-08-2016
type: Boeing 737-3H4 (WL)
registration: N368SW
photo of Boeing-737-3H4-N368SW
accident date: 04-08-2016
type: Boeing 737-3H4 (WL)
registration: N368SW
 

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Baltimore/Washington International Thurgood Marshall Airport, MD et Atlanta-William B. Hartsfield International Airport, GA est de 921 km (576 miles).

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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Boeing 737-300

  • 1113 built
  • 31ème loss
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