Crash-aerien 06 JUL 2001 d'un Lockheed L-1011-385-1-14 TriStar 150 C-FTNA - Lyon
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Statuts:Accident investigation report completed and information captured
Date:vendredi 6 juillet 2001
Heure:19:00
Type/Sous-type:Silhouette image of generic L101 model; specific model in this crash may look slightly different
Lockheed L-1011-385-1-14 TriStar 150
Compagnie:Air Transat
Immatriculation: C-FTNA
Numéro de série: 1019
Année de Fabrication: 1972
Heures de vol:66223
Cycles:24979
Moteurs: 3 Rolls-Royce RB211-22B
Equipage:victimes: 0 / à bord: 14
Passagers:victimes: 0 / à bord: 197
Total:victimes: 0 / à bord: 211
Dégats de l'appareil: Substantiels
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:78 km (48.8 milles) NE of Lyon (   France)
Phase de vol: En vol (ENR)
Nature:Charter International
Aéroport de départ:Lyon Saint-Exupéry Airfield (LYS/LFLL), France
Aéroport de destination:Berlin-Schönefeld Airport (SXF/EDDB), Allemagne
Numéro de vol: 906
Détails:
On 6 July 2001 at 18:46, a Lockheed TriStar operated by the Canadian airline Air Transat took off from runway 18R at Lyon Saint-Exupéry Airport (LYS), France for flight TSC906 to Berlin-Schönefeld Airport (SXF) with 14 crew members and 197 passengers.
At 18:50 the crew contacted Marseilles and requested a heading of 350 degrees to avoid the area of active clouds that the crew had noticed on their weather radar. The controller cleared the flight to climb to
FL160, at the requested course. The flight was cleared to climb further to FL190 and at 18:55 instructed to turn right to the MOREG reporting point. During the turn towards the reporting point, while the autopilot was connected, the crew saw that they were approaching an active cell. The captain, who was PNF, instructed the copilot to tighten the turn, which reached a 45° bank angle.
At 18:56 Marseille transferred the flight to Geneva Control. It was during this first turn to MOREG that the first burst of hail hit the plane for a duration of one to two seconds. Then a second hailstorm struck the plane, with a duration of 10 to 15 seconds.
At that moment the captain took control of the aircraft putting the airplane in a 60° bank angle. The plane lost 500 feet altitude.
The crew did not declare an emergency but advised ATC of his intention to turn back to Lyon. The captain asked the flight engineer to depressurize the cabin, which was conducted during descent. There was no rapid depressurization.
The windshield of the cockpit was badly damaged. The copilot had the best visibility and carried out the final approach and landing at Lyon-Saint Exupery. The plane landed safely at 19:16.

Probable Cause:

CONCLUSIONS
Cet accident est dû au passage de l’avion dans une zone nuageuse très active dont la symbolisation chromatique sur le radar météo de bord n’était pas représentative de la sévérité et de la fugacité des phénomènes rencontrés.
Bien que l’équipage ait choisi d’éviter le secteur le plus actif de ce foyer orageux, il est néanmoins passé dans une zone dont la représentation chromatique sur le radar de bord ne montrait pas l’activité réelle.

Sources:
» NTSB


Photos

photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
photo of Lockheed-L-1011-TriStar-150-C-FTNA
accident date: 06-07-2001
type: Lockheed L-1011 TriStar 150
registration: C-FTNA
 

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Lyon Saint-Exupéry Airfield et Berlin-Schönefeld Airport est de 954 km (596 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 tel qu'ils sont connus à ce jour.
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