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Statuts:
Date:vendredi 27 juin 1980
Heure:20:59
Type/Sous-type:Silhouette image of generic DC91 model; specific model in this crash may look slightly different
Douglas DC-9-15
Compagnie:Aerolinee Itavia
Immatriculation: I-TIGI
Numéro de série: 45724/22
Année de Fabrication: 1966
Heures de vol:29544
Cycles:45032
Moteurs: 2 Pratt & Whitney JT8D-7
Equipage:victimes: 4 / à bord: 4
Passagers:victimes: 77 / à bord: 77
Total:victimes: 81 / à bord: 81
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:25 km (15.6 milles) NE de Ustica, Italy [Tyrrhenian Sea] (   Mer Méditerranée)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Bologna-Borgo Panigale Airport (BLQ/LIPE), Italie
Aéroport de destination:Palermo-Punta Raisi Airport (PMO/LICJ), Italie
Numéro de vol: 870
Détails:
Itavia flight 870 departed Bologna (BLQ) at 20:08 on a domestic flight to Palermo (PMO). The DC-9 was en route over the Tyrrhenian Sea at an altitude of about 24000 feet when an explosion occurred. Extensive structural damage caused the plane to break up. Most of the wreckage sank to a depth of some 3500 metres.
The cause of the accident has never been officially established. In the years following the accident many theories were suggested. Some theories cantered around the fact that the DC-9 may have accidentally been shot down by NATO fighters. Either during an exercise involving Italian, U.S., and French jet fighters, or during a dog fight involving Libyan, U.S., French and Italian Air Force fighters in the area.
It has also been suggested that explosive device detonated in the rear (starboard) toilet.

Sources:
» Flight International 03 January 1981 (4)
» ICAO Adrep 4/89 (#31)
» Accident to Itavia DC-9 near Ustica, 27 June 1980- Wreckage and Impact Information & Analysis (ISASI Paper, 1994)
» Analysis of radar data, suggesting side-lobe tracks instead of unidentified planes (in Italian, starting page 5)
» Lessons from the Ustica investigations / A. Frank Taylor, Cranfield University (illustrated version)


Photos

photo of DC-9-15-I-TIGI
accident date: 27-06-1980
type: McDonnell Douglas DC-9-15
registration: I-TIGI
photo of DC-9-15-I-TIGI
accident date: 27-06-1980
type: McDonnell Douglas DC-9-15
registration: I-TIGI
 

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 Bologna-Borgo Panigale Airport et Palermo-Punta Raisi Airport est de 718 km (449 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.
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