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Last updated: 26 July 2021
Status:Definitief
Datum:vrijdag 26 juni 1959
Tijd:ca. 17:35
Type:Lockheed L-1649A Starliner
Luchtvaartmaatschappij:Trans World Airlines - TWA
Registratie: N7313C
Constructienummer: 1015
Bouwjaar: 1957
Aantal vlieguren:6671
Motoren: 4 Wright R-3350 (988TC18)
Bemanning:slachtoffers: 9 / inzittenden: 9
Passagiers:slachtoffers: 59 / inzittenden: 59
Totaal:slachtoffers: 68 / inzittenden: 68
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:32 km (20 mijl) NW of Milano (   ItaliŽ)
Fase: Kruisvlucht (ENR)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Milano-Malpensa Airport (MXP/LIMC), ItaliŽ
Vliegveld van aankomst:Paris-Orly Airport (ORY/LFPO), Frankrijk
Vluchtnummer:TW891
Beschrijving:
The TWA Lockheed Starliner, named "Star of Severn", departed Rome, Italy at 15:00 hours on a flight to Chicago, USA, via Milan, Italy and Paris, France. The flight reached Milan at 16:36 after a normal flight.
The aircraft departed Malpensa Airport at 17:20 in weather conditions with scattered thunderstorms. The flight crew received clearance to the Saronno NDB, where it has to fly a climbing circuit to at least 10000 feet. It then has to proceed to the Biella NDB, which has to be reached at least 18500 feet before crossing the Alpine mountains. At 17:26 the flight reported climbing through 6000 feet in the Saronno circuit. Six minutes later they report having reached 10000 feet and continuing to Biella, which they estimate to reach at 17:45.
About 17:35 the aircraft suffered a structural failure occurred, initiated by a wing separation. The aircraft broke up and crashed, with debris scattered over an area of about 3 square kilometers.

Probable Cause:

PROBABLE CAUSE: "The breaking-up in flight was due to the explosion of the fuel vapours contained in tank No.7, followed immediately by either an explosion of pressure or a further explosion in tank no.6. In the absence of other significant concrete evidence, taking into account the stormy weather conditions, with frequent electric discharges, existing in the area at the time of the crash, it may be assumed that the explosion of the fuel vapours contained in tank No.7 was set off, through the outlet pipes, by igniting of the gasoline vapours issuing from these pipes as a consequence of static electricity discharges (streamer corona) which developed on the vent outlets."

Bronnen:
» ICAO Accident Digest Circular 62-AN/57 (132-152)
» Memorial Website


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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 Milano-Malpensa Airport en Paris-Orly Airport bedraagt 587 km (367 miles).
Accident location: Approximate; accuracy within a few kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkís 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-1649

  • 44 built
  • The first ongeval
  • The first dodelijk ongeval
  • The zwaarste ongeval (toen het plaatsvond)
  • 2e zwaarste ongeval (op dit moment)
» safety profile

 ItaliŽ
  • The zwaarste ongeval (toen het plaatsvond)
  • 4e zwaarste ongeval (op dit moment)
» safety profile