Narrative:
Before departure from a local airfield near Bishkek, Kyrgyzstan the An-2 was fueled with 900 kg (1200 liters) unleaded gasoline "Premium Euro-95". On board the aircraft was some cargo (a spare wheel, tools, etc.), with a total mass of 415 kg. The takeoff weight (5120 kg) and centre of gravity (26,3% MAC) were within limits.
The airplane took off at 12:47 local time. About one minute after takeoff the crew reported that they were returning to the aerodrome of departure due to loss of engine power. The power was then lost almost completely, forcing the crew to carry out a forced landing in an agricultural field. This field contained deep slots, perpendicular to the direction of flight. On touchdown the left hand landing gear collapsed, along with the left hand wings.
The reason for the loss of engine power in flight, most likely, was a reduction in the filing of the gasoline due to clogging of fuel filters. The appearance, structure and nature of the impurities found in the fuel on the aircraft were not characteristic of impurities accumulated in the fuel supply system in normal operating conditions. The source of the impurities in aircraft fuel system could not be found.
| Status: | Accident investigation report completed and information captured |
| Date: | Sunday 22 February 2009 |
| Time: | 12:49 |
| Type: |  Antonov An-2SX |
| Operator: | Golden Rule Airlines |
| Registration: | EX-68039 |
| MSN: | 1G193-11 |
| First flight: | 1981 |
| Engines: | 1 Shvetsov ASh-62IR |
| Crew: | Fatalities: 0 / Occupants: 2 |
| Passengers: | Fatalities: 0 / Occupants: 2 |
| Total: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Damaged beyond repair |
| Location: | 1,5 km (0.9 mls) SE of Bishkek District Airport ( Kyrgyzstan)
|
| Phase: | En route (ENR) |
| Nature: | Unknown |
| Departure airport: | Bishkek District Airport, Kyrgyzstan |
| Bukhara Airport (BHK/UTSB), Uzbekistan | |
| Flightnumber: | 4571 |
Before departure from a local airfield near Bishkek, Kyrgyzstan the An-2 was fueled with 900 kg (1200 liters) unleaded gasoline "Premium Euro-95". On board the aircraft was some cargo (a spare wheel, tools, etc.), with a total mass of 415 kg. The takeoff weight (5120 kg) and centre of gravity (26,3% MAC) were within limits.
The airplane took off at 12:47 local time. About one minute after takeoff the crew reported that they were returning to the aerodrome of departure due to loss of engine power. The power was then lost almost completely, forcing the crew to carry out a forced landing in an agricultural field. This field contained deep slots, perpendicular to the direction of flight. On touchdown the left hand landing gear collapsed, along with the left hand wings.
Probable Cause:
The reason for the loss of engine power in flight, most likely, was a reduction in the filing of the gasoline due to clogging of fuel filters. The appearance, structure and nature of the impurities found in the fuel on the aircraft were not characteristic of impurities accumulated in the fuel supply system in normal operating conditions. The source of the impurities in aircraft fuel system could not be found.
Accident investigation:
 |
|
Classification:
Forced landing outside airport
Photos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Bishkek District Airport to Bukhara Airport as the crow flies is 905 km (566 miles).
Accident location: Exact; as reported in the official accident report.
Distance from Bishkek District Airport to Bukhara Airport as the crow flies is 905 km (566 miles).
Accident location: Exact; as reported in the official accident report.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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