Accident
Last updated: 16 April 2014
Statuts:Enquête Officielle
Date:lundi 21 avril 1958
Heure:08:30
Type/Sous-type:Silhouette image of generic DC7 model; specific model in this crash may look slightly different
Douglas DC-7
Compagnie:United Air Lines
Immatriculation: N6328C
Numéro de série: 45142/745
Année de Fabrication: 1956
Equipage:victimes: 5 / à bord: 5
Passagers:victimes: 42 / à bord: 42
Total:victimes: 47 / à bord: 47
Victime de la collision:victimes: 2
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:près de Arden, NV (   Etats-Unis d'Amérique) show on map
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Los Angeles International Airport, CA (LAX/KLAX), Etats-Unis d'Amérique
Aéroport de destination:New York-Idlewild International Airport, NY (IDL/KIDL), Etats-Unis d'Amérique
Numéro de vol: 736
Détails:
United Air Lines Flight 736, a DC-7, took off from Los Angeles (LAX) at 07:37 on an IFR flight to New York (JFK) with a planned cruising altitude of FL210.
At about 07:45 a US Air Force North American F-100F-5-NA Super Sabre fighter (56-3755) took off from Nellis AFB on an instrument training flight. During the exercise the flight was executing a simulated jet penetration in the area of Las Vegas, NV. At 08:30 the fighter plane pilot reported that they were descending from FL280 near the KRAM radio station. At the same time, United flight 736 was approaching the Las Vegas VOR. Both aircraft collided at FL210, 9 miles SW of Las Vegas VOR station on Victor Airway 8. Initial contact occurred between the leading edge of the DC-7 right wing and the leading edge of the F-100 right wing, 132 inches outboard of the aircraft centreline. It was determined that the DC-7 was flying at about 312 knots on a 23 deg. heading and the F-100 at 444 knots on a 145 deg heading. Assuming a small descent angle of the F-100, the closure speed was about 665kts. Both planes crashed out of control.


PROBABLE CAUSE: "A high rate of near head-on closure at high altitude; human and cockpit limitations; and the failure of Nellis Air Force Base and the Civil Aeronautics Administration to take every measure to reduce a known collision exposure."

Sources:
» ICAO Accident Digest, Circular 59-AN/54 (121-128)


Photos

photo of Douglas DC-7 N6328C
Add your photo of this accident or aircraft
 

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 Los Angeles International Airport, CA et New York-Idlewild International Airport, NY est de 3948 km (2468 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 tels qui sont connus à ce jour.
languages: English Français Nederlands Deutsch Espanol

Share
Share

Douglas DC-7

  • 6ème loss
  • 339 built
  • le accident 2ème le plus grave (à ce moment là)
  • le accident 7ème le plus grave (en ce moment)
safety profile

 Etats-Unis d'Amérique
  • le accident 15ème le plus grave (à ce moment là)
  • le accident 64ème le plus grave (en ce moment)
»safety profile