Vliegtuigongeval op 28 NOV 1972 met McDonnell Douglas DC-8-62 JA8040 - Moskva-Sheremetyevo Airport (SVO)
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Status:Accident investigation report completed and information captured
Datum:dinsdag 28 november 1972
Tijd:19:51
Type:Silhouette image of generic DC86 model; specific model in this crash may look slightly different
McDonnell Douglas DC-8-62
Luchtvaartmaatschappij:Japan Air Lines - JAL
Registratie: JA8040
Constructienummer: 46057/474
Bouwjaar: 1969
Motoren: 4 Pratt & Whitney JT3D-
Bemanning:slachtoffers: 9 / inzittenden: 14
Passagiers:slachtoffers: 52 / inzittenden: 62
Totaal:slachtoffers: 61 / inzittenden: 76
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:Moskva-Sheremetyevo Airport (SVO) (   Rusland)
Fase: Initiële klim (ICL)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Moskva-Sheremetyevo Airport (SVO/UUEE), Rusland
Vliegveld van aankomst:Tokyo-Haneda Airport (HND/RJTT), Japan
Vluchtnummer:JL446
Beschrijving:
A McDonnell Douglas DC-8-62 passenger plane, JA8040, was destroyed when it crashed on takeoff from Moscow's -Sheremetyevo Airport (SVO), Russia.
Five of the 14 crew members and ten of the 62 passengers survived the accident.
JAL flight JL446 was a scheduled international flight from Copenhagen (CPH), Denmark to Tokyo-Haneda (HND), Japan with an en route stop in Moscow.
The flight to Moscow was uneventful and the airplane landed at 18:17. After servicing of the aircraft startup and taxi clearance was received at 19:38. JL446 was cleared for takeoff from runway 25 at 19:49.
On takeoff the DC-8 climbed to 100 m with a supercritical angle of attack and lost height abruptly. It hit the ground and burst into flames.

Probable Cause:

PROBABLE CAUSE:
The cause of the disaster to aircraft DC-8-62 JA-8040 resided in the fact that during take-off and following attainment of the safety speed V2, the crew put the aircraft into a supercritical angle of attack which resulted in loss of speed and altitude.
The aircraft's assumption of supercritical angles of attack was the consequence of one of the following circumstances:
a) inadvertent extension of the spoilers in flight, leading to a fall in the maximum value of the lift ratio and an increase in drag;
b) loss of control of the aircraft by the crew in conditions associated with malfunctioning of the No. 1 or No. 2 engine consequent upon possible ice formation on the engine intake at a time when the de-icing system was switched off.
The anomalies in the functioning of the engines observed by the crew and other witnesses may have arisen after the aircraft had assumed a supercritical angle of attack with the spoilers extended.

Bronnen:
» Flight International 05 November 1977 (1342)
» ICAO Circular 132-AN/93 (22-26)


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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 Moskva-Sheremetyevo Airport en Tokyo-Haneda Airport bedraagt 7438 km (4649 miles).
Accident location: Approximate; accuracy within a few kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s 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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DC-8

  • 556 built
  • 33e ongeval
  • 24e dodelijk ongeval
  • 8e zwaarste ongeval (toen het plaatsvond)
  • 14e zwaarste ongeval (op dit moment)
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 Rusland
  • 14e zwaarste ongeval (toen het plaatsvond)
  • 41e zwaarste ongeval (op dit moment)
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