Crash of a PZL-Mielec AN-2R in Saydy

Date & Time: Aug 11, 1986
Type of aircraft:
PZL-Mielec AN-2
Operator:
Registration:
CCCP-44685
Flight Phase:
Landing (descent or approach)
Flight Type:
Cargo
Survivors:
Yes
Site:
Plain, Valley
Schedule:
Moma - Saydy
MSN:
1G88-12
YOM:
1967
Location:
Saydy
Republic of Yakutia (Sakha)
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Following an uneventful cargo flight from Moma, the crew was approaching Saydy and was unable to locate the landing area due to thick fog. The copilot suggested to return but the captain elected to land. He continued the approach and descended in the fog when, at an altitude of 100 meters, while completing a slight turn to the left, the aircraft struck a hill and crashed. Both occupants were injured.
Probable cause:
Decision of the captain to continue the descent in below-minimum weather conditions. The crew failed to establish visual contact with the ground.

Crash of a PZL-Mielec AN-2TP in Moma

Date & Time: Jun 20, 1985
Type of aircraft:
PZL-Mielec AN-2
Operator:
Registration:
CCCP-91783
Flight Phase:
Takeoff (climb)
Flight Type:
Cargo
Survivors:
Yes
Site:
Airport (less than 10 km from airport)
MSN:
1G38-30
YOM:
1963
Location:
Moma
Republic of Yakutia (Sakha)
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After takeoff from Moma Airstrip, the single engine aircraft encountered difficulties to gain height. It stalled and crashed in an open field located past the runway end. The aircraft was damaged beyond repair while all three occupants were slightly injured.
Probable cause:
It was determined that the aircraft was carrying a load of cargo for a total weight of 1,619 kilos. The mass and balance document showed one passenger with 1,300 kilos of cargo only. At the time of the accident, the aircraft was 219 kilos above MTOW and the CofG was well beyond the aft limit. In such conditions, the aircraft was unable to climb properly.

Crash of an Antonov AN-2 in Tyubelyakh: 6 killed

Date & Time: Oct 11, 1971 at 1316 LT
Type of aircraft:
Antonov AN-2
Operator:
Registration:
CCCP-47678
Flight Phase:
Flight
Flight Type:
Scheduled Revenue Flight
Survivors:
Yes
Site:
Mountains
Schedule:
Moma - Ust-Nera
MSN:
1159 473 12
YOM:
1961
Location:
Tyubelyakh
Republic of Yakutia (Sakha)
Country:
Russia
Region:
Asia
Crew on board:
2
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
8979
Circumstances:
The crew encountered low clouds and poor weather conditions while following the valley of the river Tikhon-Yuryakh. The decision to return was taken too late so the aircraft was unable to clear the obstacles. It struck tree tops and crashed at a height of 1,080 meters into a mountain slope located near the Moma Pass (1,444 meters high) and 19 km northeast of Chumpu-Kytyl (Tyubelyakh). The aircraft was destroyed by impact forces and a post impact fire. A pilot and a passenger were injured while the second pilot and five passengers were killed.
Probable cause:
The accident was the consequence of:
- Wrong decisions taken by the crew,
- Poor flight preparation,
- Insufficient or erroneous information about enroute weather conditions.
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