Country
code

Republic of Yakutia (Sakha)

Crash of an Antonov AN-12BP near Batagay: 6 killed

Date & Time: Oct 4, 1988 at 2258 LT
Type of aircraft:
Operator:
Registration:
CCCP-11418
Flight Type:
Survivors:
No
Site:
Schedule:
Tiksi - Batagay - Yakutsk
MSN:
7 3 447 05
YOM:
1963
Flight number:
SU40066
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
16419
Aircraft flight cycles:
9041
Circumstances:
The four engine aircraft was completing a cargo flight from Tiksi to Irkutsk with an intermediate stop in Batagay, carrying six crew members and a load of 15,5 tons of apples. The descent to Batagay Airport was initiated by night and marginal weather conditions. Thus, the visibility was limited and the crew was unable to establish a visual contact with the ground or the airport. For unknown reasons, the crew and especially the captain failed to follow the approach procedures and preferred to follow a schema dedicated for VFR approach only. This caused the aircraft to descent below the minimum prescribed altitude when the GPWS warning sounded in the cockpit. The captain disengaged the GPWS alarm system and decided to continue the descent when, at a speed of 355 km/h, the aircraft struck the slope of a mountain located 25 km from the Batagay Airport. In a right bank of 22°, the aircraft crashed and disintegrated in a snow covered ground. All six occupants were killed.
Probable cause:
Poor approach planning and wrong approach configuration on part of the crew who continued the descent below the minimum descent altitude. After the GPWS warning sounded, the captain deactivated the system and continued the approach without any visual contact with the ground or the airport. In such conditions, the crew should initiate a go-around procedure.

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

Date & Time: Sep 24, 1988
Type of aircraft:
Operator:
Registration:
CCCP-84657
Flight Phase:
Survivors:
Yes
Schedule:
Khandyga – Tompo – Topolinoye
MSN:
1G191-35
YOM:
1981
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After takeoff from Tompo, en route to Topolinoye, the engine emitted a thick white smoke then failed. The crew elected to make an emergency landing when the left main gear collided with rocks on the bank of the Tompo River. Our of control, the aircraft cartwheeled and crashed. All five occupants were rescued, two of them were injured, including the copilot.
Probable cause:
The exact cause of the engine failure could not be determined with certainty. However, it is believed that the carburetor got frosted after the crew forgot to activate the engine anti-ice system. Analyzes of the engine showed marks on the forward part of the compressor blades, indicating splinters of ice resulting from icing conditions.

Crash of a PZL-Mielec AN-2P near Kystatyam: 1 killed

Date & Time: Aug 26, 1988 at 0950 LT
Type of aircraft:
Operator:
Registration:
CCCP-01788
Flight Phase:
Survivors:
Yes
Schedule:
Zhigansk - Zhigansk
MSN:
1G107-35
YOM:
1969
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
1
Circumstances:
The single engine airplane departed Zhigansk at 0506LT on a survey flight over the Dzhardzhan River to identify possible pollution in a water protection program. The mission was conducted over the water at a height of 100 meters, sometime down to 50 meters to inspect boats. En route, the captain asked the copilot to make some calculation for a new route to Sangar. Doing so, the copilot's attention was not focused on the flight and the captain also got distracted, leaving the aircraft descending until it struck the surface of the water. The aircraft crashed and sank. Both pilots and a passenger were able to evacuate the cabin while the second passenger drowned.
Probable cause:
Loss of control in flight after the crew got distracted from flight operations.

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

Date & Time: Feb 26, 1988
Type of aircraft:
Operator:
Registration:
CCCP-01648
Survivors:
Yes
MSN:
1G82-42
YOM:
1967
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed on landing for unknown reason.

Crash of a Let L-410MU in Yakutsk

Date & Time: Sep 24, 1987 at 2016 LT
Type of aircraft:
Operator:
Registration:
CCCP-67249
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Yakutsk - Yakutsk
MSN:
77 08 15
YOM:
1977
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew (two student pilots and one instructor) was completing a local training flight at Yakutsk-Magan Airport. Ready for takeoff, the crew increased engine power to 85% then released the brakes. After a course of less than 20 meters, the airplane 'sank' on its left after the brakes block of the left main gear broke off. Takeoff procedure was abandoned and the aircraft stopped on its left side and was damaged beyond repair. All three occupants escaped uninjured.

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

Date & Time: Jul 31, 1987
Type of aircraft:
Operator:
Registration:
CCCP-02763
Survivors:
Yes
Schedule:
Vitim – Tolon – Innyaly
MSN:
1G125-41
YOM:
1971
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On short final to Innyaly, at a height of one meter, the aircraft 'floated' then rolled to the left, causing the left main gear to struck the ground 150 meters short of runway threshold. The aircraft then rolled for about 250 meters on a wet surface, veered off to the right, went through a wood fence and came to rest with its left gear torn off. There were no casualties but the aircraft was damaged beyond repair.
Probable cause:
Loss of control on short final after the crew encountered windshear at low height. It was determined that the wind direction and component changed at the last moment and it was too late for the crew to initiate a go-around procedure. The runway surface was wet and slippery, which was considered as a contributing factor.

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

Date & Time: Jul 20, 1987
Type of aircraft:
Operator:
Registration:
CCCP-40556
Schedule:
Batagay - Lazo
MSN:
1G84-09
YOM:
1967
Flight number:
SU347D
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
While approaching the landing area at Lazo, the captain let the copilot conducting the approach but failed to supervise properly his actions. The copilot failed to analyze properly the wind component and on final, the airplane rolled to the right, lost height and crashed. Occupant fate remains unknown. At the time of the accident, the wind was from 150° at 11-21 km/h with gusts at 32 km/h.
Probable cause:
Wrong approach configuration on part of the crew who failed to analyze the wind component. Failure of the captain to supervise the copilot's actions. Overconfidence and complacency were considered as contributing factors.

Crash of a Let L-410MU off Ust-Maya: 14 killed

Date & Time: Oct 14, 1986 at 1414 LT
Type of aircraft:
Operator:
Registration:
CCCP-67264
Flight Phase:
Survivors:
No
Schedule:
Yakutsk – Ust-Maya – Allakh-Yun
MSN:
78 09 05
YOM:
1978
Flight number:
SU763
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
12
Pax fatalities:
Other fatalities:
Total fatalities:
14
Circumstances:
During the takeoff roll on the gravel Airstrip at Ust-Maya Airstrip, after passing V1, the left turbocompressor lost power then the engine stopped, 1,8 second before V2 speed. Power on the right engine was increased till 96% and the crew continued the takeoff procedure. Liftoff was completed at a speed of 160 km/h then the aircraft climbed to a height of 50 meters and entered a left turn. Slowly, the altitude dropped and the aircraft eventually crashed in the Aldan River about 270 meters offshore. The wreckage sank and was found 31 hours later. All 14 occupants were killed.
Probable cause:
It was determined that the failure of the left engine was the consequence of errors on part of the crew who failed to follow the pre-takeoff engine checklist. The aircraft's speed at takeoff was insufficient and the engine failure occurred at a critical stage of the takeoff procedure, causing a loss of controllability after liftoff. During climbout, the speed decreased because the crew did not raise the landing gear due to high workload caused by an emergency situation.

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

Date & Time: Oct 9, 1986 at 1439 LT
Type of aircraft:
Operator:
Registration:
CCCP-02592
Survivors:
Yes
Site:
Schedule:
Taymylyr - Tiksi
MSN:
1G122-03
YOM:
1971
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The single engine airplane departed Taymylyr at 1247LT on a special flight to Tiksi, carrying seven passengers, two crew and a load of 192 kilos of various goods on behalf of Yakutsgeofizik. All flight was completed at an altitude of 350 meters and when the crew initiated the descent to Tiksi Airport, he encountered limited visibility due to haze. The aircraft struck the side of a hill (410 meters high) located about 20 km north of the airport, near the Lena River mouth. The aircraft was destroyed and all nine occupants were rescued.

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

Date & Time: Aug 11, 1986
Type of aircraft:
Operator:
Registration:
CCCP-44685
Flight Type:
Survivors:
Yes
Schedule:
Moma - Saydy
MSN:
1G88-12
YOM:
1967
Country:
Region:
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.