Kyren | Bureau of Aircraft Accidents Archives

The single engine airplane departed Kyren Airport in the afternoon with four employees of the company and two pilots. The purpose of the flight was to familiarize them with the area of the planned aviation chemical works for the processing of the silkworm. As the airplane failed to return to Kyren in the evening, SAR operations were initiated, but abandoned few days later as no trace of the aircraft was found. More than a year later, on July 24, 2021, a group of tourist discovered the burnt wreckage near the Baikonur Pass, in a rocky area, at an altitude of 2,780 metres. The airplane was destroyed by a post crash fire and all six occupants were killed.

Probable cause:

The accident with the An-2 RA-71276 aircraft occurred as a result of a collision with a mountain at an altitude of 2,780 metres above sea level perpendicular to the direction of the ridge with its minimum height of 2,960 metres conditions of limited visibility and the closure of mountain tops by clouds.
The following contributing factors were identified:
- The crew took the decision to perform a flight over a mountainous area with predicted closure of the mountains by clouds and unfavorable wind conditions,
- The crew took the decision to return to the landing site through the mountain range along an unexplored and previously unused route,
- Operational fatigue of the crew due to the significant duration of working hours on the day of the accident (more than 12 hours),
- The airplane falling under the influence of descending air currents on the leeward side of a mountain slope.

Final Report:

Crash of a PZL-Mielec AN-2R near Dabady

Date & Time: Jun 9, 2019 at 1624 LT

Type of aircraft:

PZL-Mielec AN-2

Operator:

Registration:

RA-81519

Flight Phase:

Flight

Flight Type:

Spraying (Agricultural)

Survivors:

Yes

Site:

Mountains

Schedule:

Kyren - Kyren

MSN:

1G208-19

YOM:

1984

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Captain / Total flying hours:

6921

Captain / Total hours on type:

6912.00

Copilot / Total flying hours:

3561

Aircraft flight hours:

3720

Circumstances:

The crew departed Kyren Airport on a crop spraying mission to treat forests. About 40 minutes into the flight, while flying at a speed of 140 km/h, the crew encountered downdrafts and the airplane lost height. Due to mountainous terrain, the crew made a turn to the right but the airplane continued to descend. The captain attempted an emergency landing when, at a speed of 85 km/h, the aircraft struck trees and crashed in a wooded area located 16 km southeast of Dabady. Both pilots were injured and evacuated to Irkutsk a day later. The aircraft was damaged beyond repair.

Probable cause:

Most likely, the reason for the accident with the An-2 RA-81519 aircraft was the execution by the flight crew along the route in the mountainous terrain to the area of the AHR at an altitude not ensuring its safety, which did not allow crossing the mountain pass, led to the need to perform an emergency landing and damage to the aircraft.
The contributing factors were most likely:
- Non-consideration by the crew of a significant increase of the outside air temperature during the day,
- The crew did not set the altimeter properly,
- Lack of instrument control over the flight altitude,
- Downdraft air currents on the leeward side of the mountain slope;
- Operating fatigue, leading to a weakening of attention and a decrease in level of situational awareness.

Final Report: