Accident
Last updated: 31 October 2014
Status:Definitief
Datum:vrijdag 1 september 1961
Tijd:02:05
Type:Silhouette image of generic CONI model; specific model in this crash may look slightly different
Lockheed L-049 Constellation
Luchtvaartmaatschappij:Trans World Airlines - TWA
Registratie: N86511
Constructienummer: 2035
Bouwjaar: 1945
Aantal vlieguren:43112
Bemanning:slachtoffers: 5 / inzittenden: 5
Passagiers:slachtoffers: 73 / inzittenden: 73
Totaal:slachtoffers: 78 / inzittenden: 78
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:14,5 km (9.1 mijl) W of Chicago-Midway Airport, IL (MDW) (   Verenigde Staten) show on map
Fase: Kruisvlucht (ENR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Chicago-Midway Airport, IL (MDW/KMDW), Verenigde Staten
Vliegveld van aankomst:Las Vegas-McCarran International Airport, NV (LAS/KLAS), Verenigde Staten
Vluchtnummer: 529
Beschrijving:
Lockheed Constellation "Star of Dublin" operated as TWA Flight 529 from Boston, MA (BOS) to San Francisco, CA (SFO) with en route stops at New York, NY, Pittsburgh, PA, Chicago, IL (MDW), Las Vegas, NV (LAS) and Los Angeles, CA (LAX).
The flight to Chicago was routine and the airplane arrived at Midway Airport at 01:18.
Following a crew change and refueling, the aircraft departed the passenger loading gate. During engine runup, Flight 529 was given its air traffic control clearance which was: "cleared to the Las Vegas Airport via Victor 6 Naperville, Victor 8 flight plan route, maintain 5,000 feet. " The clearance was acknowledged and TWA Flight 529 departed on runway 22L at 02:00, making a right turn out of traffic.
Radar contact was. established with the flight one minute and 34 seconds after the flight acknowledged takeoff clearance, and as the aircraft proceeded outbound in a right turn. At 02:04, Flight 529 was observed on radar by the departure controller to be five miles west of Midway Airport proceeding on course.
During the climbout from Midway Airport, a bolt worked its way clear in the elevator boost system. This was followed immediately by full pressure to the up-elevator side of the actuator piston. The airplane pitched up violently and an it entered an accelerated stall. The pilot's immediate response to apply high forward pressure on the control column prevented successful shift of the elevator boost system to the manual position. The pilot lost control of the airplane. Oscillatory loads then caused the separation of a of the horizontal stabilizer to which the right vertical fin is attached.
TWA Flight 529 crashed in an open field near Hinsdale, DuPage County, IL. The aircraft struck the ground in a slightly left-wing-low and nosedown attitude on a heading of approximately true North. The aircraft disintegrated, leaving debris over an area 200 feet wide and 1,100 feet long.


PROBABLE CAUSE: "The loss of an AN-175-21 nickel steel bolt from the parallelogram linkage of the elevator boost system, resulting in loss of control of the aircraft."

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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 Chicago-Midway Airport, IL en Las Vegas-McCarran International Airport, NV bedraagt 2425 km (1516 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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Lockheed L-049

  • 22e ongeval
  • 88 built
  • zwaarste ongeval (toen het plaatsvond)
  • 2e zwaarste ongeval (op dit moment)
safety profile

 Verenigde Staten
  • 3e zwaarste ongeval (toen het plaatsvond)
  • 32e zwaarste ongeval (op dit moment)
»safety profile