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Last updated: 27 October 2020
Statuts:Enquête Officielle
Date:vendredi 16 février 2018
Heure:18:28
Type/Sous-type:Silhouette image of generic F100 model; specific model in this crash may look slightly different
Fokker 100
Compagnie:Qeshm Air
Immatriculation: EP-FQF
Numéro de série: 11444
Année de Fabrication: 1993
Heures de vol:48654
Cycles:38040
Moteurs: 2 Rolls-Royce Tay 650-15
Equipage:victimes: 0 / à bord: 7
Passagers:victimes: 0 / à bord: 97
Total:victimes: 0 / à bord: 104
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Mashhad Airport (MHD) (   Iran)
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Nat.
Aéroport de départ:Tehran-Mehrabad Airport (THR/OIII), Iran
Aéroport de destination:Mashhad Airport (MHD/OIMM), Iran
Numéro de vol:QB1202
Détails:
Qeshm Air flight 1202 from Tehran-Mehrabad Airport, Iran, performed a forced landing at Mashhad when the left main landing gear failed to deploy prior to landing.
The aircraft, a Fokker 100, departed Tehran at 16:39 (13:09 UTC). It was descending towards the destination of Mashhad at 17:38 when the undercarriage was selected down. However, the left hand main gear did not deploy. The flight entered a holding pattern and the flight crew worked the related checklists. Twenty minutes later the flight performed a low pass over the runway and entered another holding pattern. The left main gear remained up.
A forced landing was carried out on runway 31R at 18:28. The aircraft swerved to the left and departed the left side of the runway, coming to rest between runway 31R and 31L. An evacuation was carried out.
The next morning the left wing was lifted by a crane. When the lifting belt broke, the wing hit the ground again, causing serious additional damage.

Probable Cause:

Probable causes:
The main cause of this accident was entering foreign contamination to hydraulic system by maintenance activities during C-Check which caused damage on blockage hydraulic flow in restrictor check valve.
The screen filter near hydraulic restrictor check valve was damaged by reflected force of Pollution and sediment available in the hydraulic system between and caused blockage the nozzle downstream to down lock LH landing gear mechanism.
Contributing Factors:
- Insufficient surveillance on maintenance operation of aircraft.
- Lack of enough experience for Qeshm Air maintenance personnel

Accident investigation:
cover
Investigating agency: AAID Iran
Status: Investigation completed
Duration: 10 months
Accident number: A961127EPFQF
Download report: Final report

Sources:
» aerospacetalk.ir


Opérations de secours

AAID Iran issued 8 Safety Recommendations

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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 Tehran-Mehrabad Airport et Mashhad Airport est de 747 km (467 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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