Country
code

Republic of Yakutia (Sakha)

Crash of a PZL-Mielec AN-2R near Lake Siljan-Kuel: 2 killed

Date & Time: Aug 30, 2019 at 0730 LT
Type of aircraft:
Operator:
Registration:
RA-33061
Flight Phase:
Flight Type:
Survivors:
Yes
Site:
Schedule:
Us-Khatyn – Suordakh
MSN:
1G218-48
YOM:
1986
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
5
Pax fatalities:
Other fatalities:
Total fatalities:
2
Captain / Total flying hours:
12500
Captain / Total hours on type:
3806.00
Aircraft flight hours:
3848
Circumstances:
The single engine airplane departed Us-Khatyn on a flight to Suordakh, carrying five passengers, two pilots and a load consisting of 600 kilos of various goods. While cruising at an altitude of about 1,450 metres, the crew encountered moderate atmospheric turbulences and was unable to maintain the altitude. The aircraft lost height and crashed on the rocky slope of amountain located 15 km southeast from the Lake Siljan-Kuel, some 250 km from the destination. Two passengers were killed while five others occupants were injured. The aircraft was destroyed.
Probable cause:
The accident was caused by the fact that the PIC did not maintain a safe flight altitude in mountainous terrain, which led to the aircraft getting into strong downdrafts while flying over the leeward side of the ridge, uncontrolled descent and collision with the top of the mountain.
The contributing factors of AP, most likely, were:
- insufficient analysis of meteorological conditions and the possibility of the formation of strong ascending and descending air currents in the mountains;
- Failure of the PIC to take safety measures when flying in the mountains and to act in case of falling into downward air currents when crossing a mountain ridge;
- the use of motor gasoline with an octane rating of less than 95, which led to a decrease in engine power;
- performing a mission on the An-2 aircraft without the procedure for restoring skills and admission to flights on this type after a significant break in flights (about 15 years).
Final Report:

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

Date & Time: May 4, 2019
Type of aircraft:
Registration:
RA-01443
Flight Type:
Survivors:
Yes
Schedule:
Ust-Nera - Vyun
MSN:
1G231-24
YOM:
1988
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The single engine airplane departed Ust-Nera on a cargo flight to Vyun, carrying two pilots and a load of various equipments destined for the employees of a local gold mine. Under unknown circumstances, the aircraft crashed upon landing and was damaged beyond repair. Both pilots escaped uninjured. The accident occurred at location N 65° 54' E 138° 20'.

Crash of a Sukhoi Superjet 100-95B in Yakutsk

Date & Time: Oct 10, 2018 at 0321 LT
Type of aircraft:
Operator:
Registration:
RA-89011
Survivors:
Yes
Schedule:
Ulan-Ude - Yakutsk
MSN:
95019
YOM:
2012
Flight number:
SYL414
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
87
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
13125
Captain / Total hours on type:
1080.00
Copilot / Total flying hours:
3200
Copilot / Total hours on type:
1300
Aircraft flight hours:
8115
Aircraft flight cycles:
3320
Circumstances:
Following an uneventful flight from Ulan-Ude, the crew initiated the approach to Yakutsk-Platon Oyunsky Intl Airport Runway 23L. Due to work in progress, the runway 05R threshold was displaced by 1,150 metres, reducing the landing distance to 2,248 metres for the runway 23L on which the touchdown zone lighting system was unserviceable. On approach, the crew was informed by ATC that the friction coefficient was 0,45. The crew completed the landing on runway 23L with a slight tailwind component of 4 knots and started the braking procedure. Unable to stop within the remaining distance, the aircraft overran, entered the construction area and collided with the junction of a concrete section under reconstruction, causing both main landing gear to collapse (the left main gear was torn off). The aircraft slid for another 250 metres before coming to rest. All 92 occupants evacuated safely and the aircraft was damaged beyond repair.
Probable cause:
The cause of the aviation accident with the RRJ 95B RA-89011 aircraft when landing at night with one deactivated thrust reverser was the transfer to the crew of incorrect information about the value of the friction coefficient, which led to the landing on an icy runway, the average normative friction coefficient which was less than 0.3, which did not allow landing in accordance with current regulations. This led to a significant increase in landing distance, rolling the aircraft out of the runway and collision with the junction of the reconstructed section of the runway with a height of about 0.4 m, which led to the destruction of the main landing gear supports and damage to the engines with fuel leakage without causing a fire.
The contributing factors were the following:
- Absence of a connecting ramp (which was not envisaged by the reconstruction project) between the current and the part of the runway being reconstructed;
- inefficiency of the SMS of Yakutsk Airport JSC in terms of identification and control of risks associated with the possibility of ice formation at the runway, and insufficient control over the implementation of the SMS by aviation authorities;
- erroneous determination of the Xc value at the last measurement;
- inefficiency of ice removal procedure during runway cleaning due to lack of chemical reagents for ice removal and/or thermal machines at the airfield;
- lack of information from the RRJ-95LR-100 RA 89038 aircraft crew about actual rolling out of the runway, which was an aviation incident and was subject to investigation;
- failure by airport and ATC officials to take appropriate action after receiving the RRJ-95LR-100 RA-89038 low friction report from the aircraft crew.
Final Report:

Crash of an Ilyushin II-18V near Tiksi

Date & Time: Dec 19, 2016 at 0445 LT
Type of aircraft:
Operator:
Registration:
RF-91821
Flight Type:
Survivors:
Yes
Schedule:
Yekaterinburg - Kansk - Tiksi
MSN:
185 0080 03
YOM:
1965
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
31
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The four engine airplane departed Yekaterinburg on a flight to Tiksi with an intermediate stop in Kansk, carrying 32 passengers and seven crew members. During a polar night approach, the aircraft deviated from the approach pattern and dropped below the glide path relying on a flawed approach scheme. This caused the belly to touch the summit of a snow-covered hill (392 metres high) located 31 km northwest of Tiksi Airport. The aircraft bounced and touched the ground again on the rear slope of the hill some 1,250 metres further on. The fuselage broke into three parts. There was no fire. All 7 crew and 31 passengers were injured, 16 seriously.

Crash of an Antonov AN-26-100 in Belaya Gora

Date & Time: Oct 11, 2016 at 1638 LT
Type of aircraft:
Operator:
Registration:
RA-26660
Survivors:
Yes
Schedule:
Yakutsk - Belaya Gora
MSN:
8008
YOM:
1979
Flight number:
PI203
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
27
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
11439
Captain / Total hours on type:
2697.00
Copilot / Total flying hours:
11142
Copilot / Total hours on type:
122
Aircraft flight hours:
34490
Aircraft flight cycles:
16367
Circumstances:
On final approach to Belaya Gora Airport, the aircraft was too low and hit the ground. On impact, the right main gear and the nose gear collapsed. The aircraft slid for several yards before coming to rest in a snow covered field about 400 meters short of runway threshold and 300 meters to the left of the approach path. The propeller on the right engine was torn off and it appears that the fuselage was bent as well. All 33 occupants were evacuated safely. At the time of the accident, weather conditions were marginal with limited visibility caused by snow falls. It was reported the visibility was about 2,5 km at the time of the accident while the crew needed at least 4 km on an NDB approach.
Probable cause:
The accident was caused by the combination of the following factors:
- Absence of standard operating procedures issued by the operator of how to conduct NDB approaches,
- Violation of procedures by tower who only transmitted information about snow fall and recommended to perform a low pass over the runway but did not transmit the actual visibility was 1900 meters below required minimum
- Absence of information that the visibility was below required minimum, the last transmission indicated minimum visibility was present,
- Presence of numerous landmarks (abandoned ships, ship cranes, fuel transshipment complex, ...) covered by snow within 700-1000 meters from the unpaved runway which could be taken as runway markers by flight crew,
- Presence of a number of "bald spots" due to the transitional period of year where the underlying surface became visible making it difficult to visualize and recognize the unpaved runway covered with snow (it was the first flight into Belaya Gora for the crew in the winter season, they had operated into the aerodrome only in summer so far),
- Insufficient use of the available nav aid on final approach which led to lack of proper control of the aircraft position relative to the glide path,
- Lack of possibility for tower to watch the aircraft performing the NDB approach from his work place.
Final Report:

Crash of a PZL-Mielec AN-2TP near Vilyuisk

Date & Time: Aug 16, 2013 at 1345 LT
Type of aircraft:
Operator:
Registration:
RA-01419
Flight Phase:
Survivors:
Yes
Schedule:
Vilyuisk - Kyubeinde-Ugulet
MSN:
1G230-59
YOM:
1988
Flight number:
PI9977
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
3973
Captain / Total hours on type:
480.00
Copilot / Total flying hours:
374
Copilot / Total hours on type:
52
Aircraft flight hours:
7587
Aircraft flight cycles:
10148
Circumstances:
Few minutes after takeoff from Vilyuisk Airport, on a schedule service (flight n° PI9977) to Kyubeinde-Ugulet, while cruising at an altitude of about 400 metres, the engine overheated and lost power while the oil pressure dropped. The crew decided to return to Vilyuisk when the engine failed shortly later. The captain attempted an emergency landing in a swampy area located 26 km northwest of Vilyuisk (at N63°54.584" E121°18.048"). The main wheels got stuck in soft ground, the engine was ripped off, and the aircraft came to rest, bursting into flames. Both pilots and all 9 passengers escaped uninjured and the aircraft was totally destroyed by fire.
Probable cause:
The accident with An-2Т RA-01419 aircraft was caused by emergency landing at the landing place in marsh area selected from air that resulted in main landing gear dipping in soft ground, dynamic pitch-down moment followed by engine ground impact and fuselage separation along engine mounting fitting, airframe structure and gear damage. Gasoline pipeline destruction during engine separation from aircraft frame and gasoline ingestion on the hot parts of power unit caused fire which almost completely destroyed the aircraft. Wrong PIC's actions who didn't turn off ignition and shut off fuel before aircraft landing could contribute to the fire. The emergency landing at the landing place selected from air was caused by oil temperature increase and pressure drop below specified by the aircraft FOM values in flight. It wasn't possible to determine the cause of temperature increase and oil pressure drop due to engine component substantial damage during fire.
Final Report:

Crash of an Antonov AN-26B-100 in Deputatsky

Date & Time: Nov 21, 2012 at 1431 LT
Type of aircraft:
Operator:
Registration:
RA-26061
Survivors:
Yes
Schedule:
Yakutsk - Deputatsky
MSN:
111 08
YOM:
1981
Flight number:
PI227
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
23
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
8845
Captain / Total hours on type:
1150.00
Copilot / Total flying hours:
2566
Copilot / Total hours on type:
245
Aircraft flight hours:
22698
Aircraft flight cycles:
11257
Circumstances:
Following an uneventful flight from Yakutsk-Magan Airport, crew started the descent to runway 10. On touch down on a snow covered runway, aircraft landed slightly to the left of the centerline. After a course of 350 meters, left main gear hit a snow berm of 20-50 cm high. Aircraft continued to the left, veered off runway and came to rest in snow covered field with its right main gear and right wing severely damaged. All 29 occupants were evacuated safely while the aircraft was damaged beyond repair.
Probable cause:
The non-fatal accident with An-26B RA-26061 aircraft was caused by its RWY overrun that resulted in aircraft structure damage. The accident was possible due to combination of the following factors:
- Pilot's error resulted in approach procedure correction up to the moment of landing resulted in offset approach towards unpaved RWY axis and considerably to the left from its axis;
- Non-compliance of unpaved RWY of "Deputatsky" Airport" condition with Civil aerodrome operation manual requirements RF-94, in part of interface between cleaned and uncleaned surface of unpaved RWY with slope no more than 1:10;
- Nose-left moment during main landing gear movement along interface from recent snow up to 30-50 cm as a result of both left landing gear wheels dipping into snow.
Final Report:

Crash of an Ilyushin II-76MD in Mirny: 11 killed

Date & Time: Nov 1, 2009 at 0849 LT
Type of aircraft:
Registration:
RF-76801
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Mirny – Irkutsk – Chita
MSN:
00934 95866
YOM:
1989
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
11
Circumstances:
The four engine aircraft departed Mirny on a positioning flight to Chita with an intermediate stop in Irkutsk, carrying four passengers and a crew of seven on behalf of the Russian Ministry of the Interior. Shortly after takeoff by night, the aircraft rolled to the right to an angle of 90° then crashed at a speed of 364 km/h some 1,893 metres past the runway end. The aircraft was totally destroyed and all 11 occupants were killed. The accident occurred 59 seconds after takeoff.
Probable cause:
The day before the accident, the aircraft arrived in Mirny following a cargo flight, delivering various goods. After landing, the crew activated the electrical locking system for the rudder and the ailerons, and the 'lock on' light came on in the cockpit panel. In the morning of the accident, prior to takeoff, the crew followed the pre-takeoff checklist and deactivated the electrical locking system, but the 'lock on' light remained illuminated. Considering this as a false alarm, the captain decided to take off and proceeded with a manuel control of the ailerons. The left aileron moved normally while the right aileron got locked because of the locking mechanism. During the takeoff roll, because the four engine were not in full power mode, there was no sound alarm about the aileron locked mechanism. The aircraft deviated to the right and after lift off, it rolled to the right to angle of 8°. The pilot-in-command elected to counteract the banking but this maneuver was limited due to the right aileron locked mechanism. The aircraft continued to roll to the right to an angle of 90° until control was lost.

Crash of a PZL-Mielec AN-2T in Pokrovsk: 3 killed

Date & Time: Apr 30, 2009 at 2325 LT
Type of aircraft:
Operator:
Registration:
RF-00842
Flight Type:
Survivors:
No
Schedule:
Krasnoyarsk - Lensk - Yakutsk
MSN:
1G195-55
YOM:
1980
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
3
Circumstances:
The crew was completing a positioning flight from Krasnoyarsk to Yakutsk with an intermediate stop in Lensk. The intended destination was in fact Prokovsk located about 70 km southwest of Yakutsk but the airfield was not suitable for night movements. On approach to Yakutsk-Magan Airport, the crew continued to Prokovsk where several cars were parked along the runway with their lights ON. Due to low visibility caused by night and snow falls, the crew was unable to establish a visual contact with the ground and two approaches were missed. During a third attempt to land, the aircraft collided with pine trees and power cables and crashed in an open field, bursting into flames. All three occupants were killed.
Probable cause:
The decision of the crew to land on an airfield that was not equipped for night movements.

Crash of a PZL-Mielec AN-2TP near Sangar

Date & Time: Nov 18, 2005 at 1407 LT
Type of aircraft:
Operator:
Registration:
RA-02252
Flight Phase:
Flight Type:
Survivors:
Yes
Site:
Schedule:
Sangar – Segyan-Kyuel – Sangar
MSN:
1G234-06
YOM:
1989
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
10
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The aircraft was engaged in an ambulance flight from Sangar to Segyan-Kyuel and back. Because of poor weather the flight was delayed a couple of hours. At ETD, weather conditions at Sangar Airport was as follows: visibility more than 10 km, scattered clouds at 800 metres, overcast at 3,000 metres, temperature -22° C, dewpoint -23° C, pressure 765 mm Hg. Weather forecast en route included a few stratocumulus clouds between 1,400 and 1,700 metres, significant altostratus clouds between 2,700 and 3,500 metres. The mountainous area over which the Antonov was to fly moderate orographic turbulence was present in the layer from 900 to 1,700 meters, and possible downdrafts on the lee side of ridge in the same altitude range. These conditions were not reported to the crew. Then medical equipment with a weight of 400 kg and passengers arrived at the airport by ambulances. The captain expected seven passengers, but three additional passengers had arrived, without having tickets. The names were added to the passenger list and the copilot arranged the payment of the fare. No seats were available for two passengers, so they had to sit on some hand luggage in the aisle. At 04:46 UTC the aircraft departed from Sangar and climbed towards the mountainous terrain. The highest point along the route was at an elevation of 1,976 metres. The minimum safe altitude was 2,515 metres. The pilot climbed VFR and maintained visual separation from the snow-covered mountains. At an altitude of 1,300 metres the Antonov entered an area with strong turbulence. The aircraft was caught in a downdraft. In an attempt to stop the plane from descending further, power was added to nominal, then to the takeoff power. With rising terrain it was impossible to continue. The pilot decided to carry out a 180° turn to the left over downsloping terrain. This brought the plane downwind with a 30° bank instead of the recommended 20°. As a result, the rate of descent increased and after it rolled to an angle of 120°, the left lower wing contacted a cliff. The aircraft lost speed and crashed on the snow covered mountain. All 12 occupants were rescued, among them four were seriously injured. The aircraft was destroyed.
Probable cause:
The following findings were identified:
- The crew carried out a flight at a height lower than the minimum safe altitude,
- Incorrect estimation by the crew of the prevailing situation, which led to a late decision to return to the airport of departure under the conditions of orographic turbulence and airspace limited by mountains,
- Deficiencies in the flight instructions at the airport Of Sangar, due to the absence a.o. of an altitude diagram of the route of flight, which would have shown that it was impossible for the airplane, according to its technical flight characteristics, to gain enough height within 10 km after takeoff,
- The incorrect weather forecast along the flight course, in which the orographic turbulence was not provided,
- The erroneous actions of the crew in the process of the downwind turn with a bank angle of 30° while carrying out the delayed decision to return to the airport of departure, leading to an increase in the vertical rate of descent.