Accident
Last updated: 27 August 2014
Status:Definitief
Datum:maandag 21 april 1958
Tijd:08:30
Type:Silhouette image of generic DC7 model; specific model in this crash may look slightly different
Douglas DC-7
Luchtvaartmaatschappij:United Air Lines
Registratie: N6328C
Constructienummer: 45142/745
Bouwjaar: 1956
Bemanning:slachtoffers: 5 / inzittenden: 5
Passagiers:slachtoffers: 42 / inzittenden: 42
Totaal:slachtoffers: 47 / inzittenden: 47
Botsingsslachtoffers:slachtoffers: 2
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:nabij Arden, NV (   Verenigde Staten) show on map
Fase: Kruisvlucht (ENR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Los Angeles International Airport, CA (LAX/KLAX), Verenigde Staten
Vliegveld van aankomst:New York-Idlewild International Airport, NY (IDL/KIDL), Verenigde Staten
Vluchtnummer: 736
Beschrijving:
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."

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


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photo of Douglas DC-7 N6328C
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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Los Angeles International Airport, CA en New York-Idlewild International Airport, NY bedraagt 3948 km (2468 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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Douglas DC-7

  • 6e ongeval
  • 339 built
  • 2e zwaarste ongeval (toen het plaatsvond)
  • 7e zwaarste ongeval (op dit moment)
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 Verenigde Staten
  • 15e zwaarste ongeval (toen het plaatsvond)
  • 64e zwaarste ongeval (op dit moment)
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