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Hijacking
Last updated: 22 October 2017
Statuts:-
Date:mardi 11 septembre 2001
Heure:09:03
Type/Sous-type:Silhouette image of generic B762 model; specific model in this crash may look slightly different
Boeing 767-222
Compagnie:United Airlines
Immatriculation: N612UA
Numéro de série: 21873/41
Année de Fabrication: 1983-01-27 (18 years 8 months)
Heures de vol:66647
Cycles:17569
Moteurs: 2 Pratt & Whitney JT9D-7R4D
Equipage:victimes: 9 / à bord: 9
Passagers:victimes: 56 / à bord: 56
Total:victimes: 65 / à bord: 65
Victimes au sol:victimes: 900
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:New York, NY (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Boston-Logan International Airport, MA (BOS/KBOS), Etats-Unis d'Amérique
Aéroport de destination:Los Angeles International Airport, CA (LAX/KLAX), Etats-Unis d'Amérique
Numéro de vol:UA175
Détails:
In a massive coordinated terrorist attack 19 men hijacked 4 jetliners on the morning of September 11. The hijackers were on a suicide mission and had received orders to take over control of the aircraft and to fly the planes into specified targets.
United Airlines Flight 175 departed Boston-Logan for Los Angeles at 08:14. The aircraft was hijacked by five terrorists. The hijackers took over control, reportedly switched off the transponder and changed course to New York. At 09:03 the aircraft was flown into the Southeast side of the 110-story New York WTC South tower in a sharp left wing low attitude, crashed and exploded into the 78th through 84th floors. According to an FAA study, N612UA struck the WTC at a speed of 586 mph; an MIT study however determined the plane was probably traveling at 537 mph.
The massive fire weakened the tower structure on these floors and the tower collapsed at 09:59. Most of the office workers below the 78th floor were able to evacuate the tower on time before the collapse. Seventeen minutes before Flight 175 crashed into the South Tower, the WTC North Tower had been hit by an American Airlines Boeing 767, N334AA.
A total of 2,606 people were killed in the World Trade Center buildings, including about 292 on the ground. A precise breakdown of the number casualties relating to Flight 11 (North Tower) and Flight 175 (South Tower) is impossible.
It has been estimated that about 1600 people were killed on the North Tower, and about 900 on the South Tower.

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 4 years and 6 months
Accident number: DCA01MA063
Download report: Summary report

Sources:
» USA Today
» ATC transcript United Airlines Flight 175 / NTSB
» Final Report of the National Commission on Terrorist Attacks Upon the United States
» Flight Path Study United Airlines Flight 175 / NTSB


Photos

photo of Boeing 767-222 N612UA
Both WTC towers on fire; 13/14 minutes after Flight 11 impacted Tower 1 (right) and seconds after impact of United Airlines Flight 175 in Tower 2 (left)
photo of Boeing 767-222 N612UA
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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 Boston-Logan International Airport, MA et Los Angeles International Airport, CA est de 4164 km (2602 miles).
Accident location: Exact; deduced from official accident report.

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.
languages: languages

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