ASN Wikibase Occurrence # 334993
| Date: | Sunday 5 December 1954 |
| Time: | 20:55 |
| Type: | Ilyushin Il-12P |
| Owner/operator: | Aeroflot, Kazakstan Civil Aviation Directorate |
| Registration: | CCCP-L1320 |
| MSN: | 30126 |
| Year of manufacture: | 1947 |
| Total airframe hrs: | 4645 hours |
| Fatalities: | Fatalities: 1 / Occupants: 19 |
| Aircraft damage: | Destroyed, written off |
| Category: | Accident |
| Location: | 4,5 km NW of Alma-Ata -
 Kazakhstan
|
| Phase: | Approach |
| Nature: | Passenger - Scheduled |
| Departure airport: | Alma-Ata Airport (ALA/UAAA) |
| Karaganda Airport (KGF/UAKK) |
Shortly after takeoff from Alma-Ata on the first leg of a flight to Moscow, the left engine developed a malfunction. The aircraft reached a height of 100 m before it began losing height and speed.
The captain decided to make an emergency landing at the military airfield at Pervomaiski, 4.5 km north-west of Alma-Ata Airport but the aircraft hit a building, several trees and two telegraph poles.
The aircraft crash-landed wheels-up and ran into another building.
The causes of the disaster were:
1) Burnout of the air self-start valve of the 10th cylinder of the left engine due to poor maintenance, mistaken by the crew for a fire in the engine and leading to a single-engine flight at low altitude.
2) When performing a single-engine flight, the PIC made gross mistakes in the piloting technique:
a) made a turn with a roll of 5 ° to an inoperative motor at a speed of 180-170 km / h at an altitude of 80-70 m;
b) alternately gave afterburner to the right engine in the process of turning, which significantly increased the plane's slip with a roll on the inoperative engine and led to a loss of altitude and speed.
The pilot's gross errors in piloting technique were aided by the fact that the co-pilot was in the left seat. The PIC has not been tested in piloting from the right seat since September 1952.
Contributing reasons:
1) poor organization and condition of aircraft maintenance
2) unsatisfactory training of crews for single-engine flight and poor training of crews for flights in 151 AO.
3) poor discipline of the flight and technical personnel in the airport Alma-Ata.
Sources:
airdisaster.ru
Location
Revision history:
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