No fatalities

2014-02-02: Airbus A320 (EY-623) — East Air - Tajikistan — Kulob, Tajikistan

Kulob, TajikistanLanding (descent or approach)

On February 2, 2014, an Airbus A320 (registration EY-623) operated by East Air - Tajikistan was involved in an aviation accident near Kulob, Tajikistan during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: The accident with A320-231 EY-623 aircraft was caused by the aircraft collision with snow parapet during landing on unprepared RWY that was cleared to 22 m in width (45 m RWY total width), and with 50-95 cm snow parapets along the cleared part that resulted… This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781193761Data APIEditorial standards
Airbus A320
Photo: Tosaka / CC BY 3.0, via Wikimedia Commons

An A320-231 (EY-623) landed 230m past the threshold on runway 01 at Kulob Airport in heavy snow. After touchdown, the right main gear and both engines struck snow berms up to 95cm high, causing engine flameout and nose gear loss. The aircraft veered right and came to rest 20m off the runway. All 192 occupants evacuated safely. The aircraft was damaged beyond repair.

Incident Summary

On an uneventful flight from Moscow-Domodedovo Airport, the crew received clearance to land on runway 01 at Kulob Airport. During the approach in heavy snowfall, the aircraft touched down 230 meters past the runway threshold at a speed of 255 km/h. After touchdown, the crew initiated braking. After traveling 520 meters, the right main gear contacted a snow berm. Simultaneously, both engines struck a snow berm up to 95 centimeters high, resulting in engine stoppage due to the ingestion of a large quantity of snow. The aircraft then veered to the right, lost its nose gear, and came to rest in snow 20 meters to the right of the runway, 1,190 meters from the threshold. All 192 occupants evacuated safely, and the aircraft sustained damage beyond repair.

Investigation Findings

The official investigation determined that the accident was caused by the aircraft colliding with a snow parapet during landing on an unprepared runway. The runway had been cleared to a width of 22 meters (out of a total width of 45 meters), leaving snow parapets 50 to 95 centimeters high along the cleared portion. This collision resulted in the destruction of the front gear leg and flameout of both engines, followed by a runway overrun to the right.

The investigation identified a combination of contributing factors: the flight operation officer's decision to clear the aircraft for landing on an unprepared runway, and the failure of the aerodrome service to place temporary restrictions, make an appropriate note in the "Aerodrome airworthiness log," or take any measures to prevent the aircraft from landing on the unprepared runway.

Probable cause

The accident with A320-231 EY-623 aircraft was caused by the aircraft collision with snow parapet during landing on unprepared RWY that was cleared to 22 m in width (45 m RWY total width), and with 50-95 cm snow parapets along the cleared part that resulted in front gear leg destruction and engines flameout followed by aircraft runway overrun to the right. The accident was caused by the consequence of the following factors combination: - flight operation officer decision for aircraft clearance on unprepared RWY, - having unprepared RWY by the time of the aircraft arrival the aerodrome service didn't put temporary restrictions, didn't make the appropriate note in the "Aerodrome airworthiness log", didn't take any measures to prevent the aircraft landing on unprepared RWY.