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𝗕𝗲𝗸 𝗔𝗶𝗿 𝗙𝗹𝗶𝗴𝗵𝘁 𝟮𝟭𝟬𝟬 was a scheduled domestic passenger flight from Almaty to Nur-Sultan, operated by a Fokker 100 (Reg. UP-F1007) on 𝗗𝗲𝗰𝗲𝗺𝗯𝗲𝗿 𝟮𝟳, 𝟮𝟬𝟭𝟵.
Air temperature was -12°C and prior to departure the horizontal stabilizer was de-iced; the wings were not de-iced. Flaps were set at 0° and the plane commenced the takeoff roll from runway 05R at 07:20 local time. The plane took off at 07:20:36 at a speed of 148 knots. Immediately after the separation of the plane from the runway, it rolled from 5° right to 19° to the left without an increase in indicated airspeed and with an increase in pitch angle to 14°. At 07:20:42, gaining a height of 20 feet, the plane lost altitude and the IAS decreased to 130 knots as it rolled from 14° to the right to 11° to the left.
At 07:20:50, the plane contacted the runway with its tail and landed on the main landing gear. The plane ran along the runway for 15 seconds with the nose gear raised, without a significant increase in speed. The plane became airborne again at a speed of 138 knots with the tail touching the runway. The crew retracted the landing gear. The plane again rolled from left to right with the pitch angle increasing to 19°. The IAS decreased to 130 knots and at 07:21:09, after gaining a height of 11 feet, the plane banked right, descended and slid over the ground until it went through the airport perimeter fence. At 07:21:12, at a speed of 147 knots, the plane collided with a house.
𝗖𝗮𝘂𝘀𝗲𝘀:
The Fokker-100 aircraft accident occurred as a result of an asymmetrical loss of wing lift properties at the stage of takeoff, which resulted in the aircraft crashing down immediately after leaving the runway and rolling to the right on the snowy ground, breaching the airport perimeter fence and colliding with a two-story private building located 9-10 m from the fence.
As a result of collision, 11 passengers and one crew member died and 47 passengers received different injuries because of overloading, striking, destruction and crushing of the aircraft structure.
The cause of the loss of wing lift properties was most likely the effect of ground icing.
𝗖𝗼𝗻𝘁𝗿𝗶𝗯𝘂𝘁𝗶𝗻𝗴 𝗙𝗮𝗰𝘁𝗼𝗿𝘀:
- The crew, after analyzing the actual meteorological situation at Almaty airport, may not have drawn sufficient conclusions to better inspect the entire aircraft and especially (tactile method) the leading edge of the wing;
- The Flight Safety Management System (FMS) of Beck Air JSC contains mainly only general provisions and specific actions that were not adapted for implementation, which did not allow timely identification and elimination of existing risks affecting flight safety.
- Collision of the aircraft with a two-storey private structure, which affected the severity of the consequences.
