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Last updated: 1 December 2021
Statuts:Enquête Officielle
Date:dimanche 18 décembre 1949
Type/Sous-type:Silhouette image of generic CONI model; specific model in this crash may look slightly different
Lockheed L-049-46 Constellation
Compagnie:Transcontinental & Western Air - TWA
Immatriculation: NC86501
Numéro de série: 2022
Année de Fabrication: 1945
Heures de vol:9512
Equipage:victimes: 0 / à bord: 5
Passagers:victimes: 0 / à bord: 26
Total:victimes: 0 / à bord: 31
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Chicago Municipal Airport, IL (MDW) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Nat.
Aéroport de départ:San Francisco International Airport, CA (SFO/KSFO), Etats-Unis d'Amérique
Aéroport de destination:Chicago-Midway Airport, IL (MDW/KMDW), Etats-Unis d'Amérique
Numéro de vol: 154
TWA Flight 154 departed San Francisco at 00:45 on an Instrument Flight Plan for New York with one stop scheduled at Chicago. Over Moline, IL, Chicago Air Route Traffic Control cleared the flight to Aurora Illinois, and instructed it to hold west of the Aurora Intersection because of an estimated two-hour traffic delay. Flight 154 reported over the Aurora Intersection at 07:03, and a few minutes later the captain requested a clearance to return to Omaha. This clearance was granted. Seven minutes later, at 07:10, while en route to Omaha the company issued the flight revised instructions to proceed to Kansas City. While en route to Kansas City, the company's Kansas city dispatcher informed the flight that if they returned to Chicago immediately, an approach clearance could be obtained without delay. Accordingly, the flight returned to Chicago and upon arrival there approach control cleared it to make an ILS approach and to land on runway 13R. At this time the Chicago weather was reported: ceiling 300 feet, visibility 1-1/2 miles with moderate fog and smoke, and wind west-southwest at 8 mph. The ILS approach was abandoned at the captains discretion and he started another. On this second approach the aircraft was observed to touchdown approximately 3,200 feet from the approach end of the runway. From this point, it traveled the remaining 2,530 feet of the runway, traveled 875 feet beyond the far end of runway 13R and went through a heavy wire fence, crossed a parking lot and struck a billboard and a large ornamental stone pillar before coming to rest. Contact with these structures extensively damaged the aircraft.

Probable Cause:

PROBABLE CAUSE: "The Board determines that the probable cause of this accident was the execution by the pilot of a final approach at an excessive air speed and a landing too far down the runway."

» CAB File No. 1-0136


photo of Lockheed-L-049-Constellation-NC86501
accident date: 18-12-1949
type: Lockheed L-049 Constellation
registration: NC86501

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 San Francisco International Airport, CA et Chicago-Midway Airport, IL est de 2957 km (1848 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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