Crash-aerien 15 OCT 2015 d'un Boeing 747-3B3 EP-MNE - Tehran-Mehrabad Airport (THR)
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Statuts:Accident investigation report completed and information captured
Date:jeudi 15 octobre 2015
Type/Sous-type:Silhouette image of generic B743 model; specific model in this crash may look slightly different
Boeing 747-3B3
Compagnie:Mahan Air
Immatriculation: EP-MNE
Numéro de série: 23480/641
Année de Fabrication: 1984-04-14 (31 years 6 months)
Heures de vol:92754
Moteurs: 4 General Electric CF6-50E2
Equipage:victimes: 0 / à bord: 19
Passagers:victimes: 0 / à bord: 422
Total:victimes: 0 / à bord: 441
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:près de Tehran-Mehrabad Airport (THR) (   Iran)
Phase de vol: En montée initiale (ICL)
Nature:Transport de Passagers Nat.
Aéroport de départ:Tehran-Mehrabad Airport (THR/OIII), Iran
Aéroport de destination:Bandar Abbas Airport (BND/OIKB), Iran
Numéro de vol:W51095
Mahan Air flight 1095 returned to land at Tehran-Mehrabad Airport, Iran after suffered an uncontained engine failure.
The aircraft, a Boeing 747-300, registered EP-MNE operated a scheduled flight from Mehrabad International Airport to Bandar Abbas Airport, carrying 19 flight crew and 422 passengers. The aircraft departed from Tehran at 07:16 hours local time.
About 07:18, while climbing through 7500 feet, the no.3 General Electric CF6-50E2 engine suffered an uncontained failure. Some parts of the engine detached and struck engine no. 4, as well as aircraft structure. The aircraft hydraulic systems no 1, 3 and 4 failed due to impact of debris from engine no.3. An emergency landing was made back at Tehran at 07:53.

Investigation revealed that the engine failure was initiated by vibration as a result of unbalance of the engine HPT module, which caused crack propagation in the low pressure turbine (LPT)

Probable Cause:

The operator’s fault to modify the ENG# 3 with AD requirement, and ineffective action for N1 Vibration which caused uncontained engine failure.
Contributing factors:
- Insufficient operator maintenance & engineering performance
- Lack of effective monitoring in operators line maintenance
- Lack of support for engine parts and mandatory information from the manufacturer
- Lack of effective monitoring in Mahan air concerning operation, training and technical divisions.

Accident investigation:

Investigating agency: AAIB Iran
Status: Investigation completed
Duration: 1 years
Accident number: A13940723EPMNE
Download report: Final report

Opérations de secours

AAIB Iran issued 6 Safety Recommendations

Show all...


photo of Boeing-747-3B3-EP-MNE
accident date: 15-10-2015
type: Boeing 747-3B3
registration: EP-MNE

Video, social media

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 Tehran-Mehrabad Airport et Bandar Abbas Airport est de 1050 km (656 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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Boeing 747

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  • 61ème loss
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