Détails:
Swissair Flight 306 was a scheduled international flight from Zürich to Rome, with an intermediate stop at Geneva. Dense fog was existing at the time of departure and at 07:00 hours local time the flight was informed that the RVR was 180 m for runway 34 and 60 m for runway 16, and that there was a light northerly wind (1 to 2 kt). At 07:04 hours the flight was authorized to taxi to runway 34 behind an accompanying vehicle. At 07:05 the crew reported that they would taxi half way down runway 34 to inspect the fog condition and then return to takeoff position. This was done, using at times considerable engine power probably in an attempt to disperse the fog. Around 07:12 hours the aircraft was back at the threshold of runway 34 and permission to takeoff was granted. The flight took off at 07:13 hours and started to climb to flight level 150, its cruising altitude. Four minutes later witnesses on the ground noticed a whitish trail of smoke on the left side of the aircraft and suddenly a long flame from the left wing-root. Around 07:20 hours the aircraft reached an altitude of approximately 2700 m. It then began to lose height, entered a gentle left turn loosing height more rapidly and finally went into a steep dive.
Parts of the aircraft became detached and at 07:21 hours a "MAYDAY" message was received., At 07:22 hours the aircraft crashed into the ground on the outskirts of Dürrenäsch, at an elevation of 559 m, approximately 35 km from Zürich/Kloten Airport.
PROBABLE CAUSE: "The crash was due to the destruction of essential structural parts of the aircraft by a fire caused by overheating of the brakes during the taxiing phase."
» Schlussbericht der Eidgenössischen Flugunfall-Untersuchungskommission über den Unfall des Swissair-Flugzeuges SE-210 Caravelle III HB-ICV, Nr. 1963/37 - 229
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
| Statuts: | Accident investigation report completed and information captured |
| Date: | mercredi 4 septembre 1963 |
| Heure: | 07:22 |
| Type/Sous-type: |  Sud Aviation SE-210 Caravelle III |
| Compagnie: | Swissair |
| Immatriculation: | HB-ICV |
| Numéro de série: | 147 |
| Année de Fabrication: | 1962-10-02 (11 months) |
| Moteurs: | 2 Rolls-Royce Avon 527 |
| Equipage: | victimes: 6 / à bord: 6 |
| Passagers: | victimes: 74 / à bord: 74 |
| Total: | victimes: 80 / à bord: 80 |
| Dégats de l'appareil: | Détruit |
| Conséquences: | Written off (damaged beyond repair) |
| Lieu de l'accident: | Dürrenäsch ( Suisse)
|
| Élévation des lieux de l'accident: | 559 m (1834 feet) amsl |
| Phase de vol: | En vol (ENR) |
| Nature: | Transport de Passagers Nat. |
| Aéroport de départ: | Zürich-Kloten Airport (ZRH/LSZH), Suisse |
| Genève-Cointrin Airport (GVA/LSGG), Suisse | |
| Numéro de vol: | SR306 |
Swissair Flight 306 was a scheduled international flight from Zürich to Rome, with an intermediate stop at Geneva. Dense fog was existing at the time of departure and at 07:00 hours local time the flight was informed that the RVR was 180 m for runway 34 and 60 m for runway 16, and that there was a light northerly wind (1 to 2 kt). At 07:04 hours the flight was authorized to taxi to runway 34 behind an accompanying vehicle. At 07:05 the crew reported that they would taxi half way down runway 34 to inspect the fog condition and then return to takeoff position. This was done, using at times considerable engine power probably in an attempt to disperse the fog. Around 07:12 hours the aircraft was back at the threshold of runway 34 and permission to takeoff was granted. The flight took off at 07:13 hours and started to climb to flight level 150, its cruising altitude. Four minutes later witnesses on the ground noticed a whitish trail of smoke on the left side of the aircraft and suddenly a long flame from the left wing-root. Around 07:20 hours the aircraft reached an altitude of approximately 2700 m. It then began to lose height, entered a gentle left turn loosing height more rapidly and finally went into a steep dive.
Parts of the aircraft became detached and at 07:21 hours a "MAYDAY" message was received., At 07:22 hours the aircraft crashed into the ground on the outskirts of Dürrenäsch, at an elevation of 559 m, approximately 35 km from Zürich/Kloten Airport.
Probable Cause:
PROBABLE CAUSE: "The crash was due to the destruction of essential structural parts of the aircraft by a fire caused by overheating of the brakes during the taxiing phase."
Sources:
» ICAO Accident Digest No.15 - Volume II, Circular 78-AN/66 (186-195)» Schlussbericht der Eidgenössischen Flugunfall-Untersuchungskommission über den Unfall des Swissair-Flugzeuges SE-210 Caravelle III HB-ICV, Nr. 1963/37 - 229
Photos
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
accident date: 04-09-1963
type: Sud Aviation SE-210 Caravelle III
registration: HB-ICV
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 Zürich-Kloten Airport et Genève-Cointrin Airport est de 229 km (143 miles).
Accident location: Approximate; accuracy within a few kilometers.
La distance entre Zürich-Kloten Airport et Genève-Cointrin Airport est de 229 km (143 miles).
Accident location: Approximate; accuracy within a few kilometers.
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.
languages: 
Suisse
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Caravelle
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