Crash of a Cessna 208 Caravan in Kirensk

Date & Time: Oct 2, 2010 at 1024 LT
Type of aircraft:
Operator:
Registration:
RA-67701
Flight Phase:
Survivors:
Yes
Schedule:
Lensk-Bratsk
MSN:
208-0932
YOM:
2002
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
13358
Captain / Total hours on type:
4083.00
Copilot / Total flying hours:
4824
Copilot / Total hours on type:
757
Aircraft flight hours:
3203
Aircraft flight cycles:
1423
Circumstances:
Aircraft left Lensk at 0813LT on a flight to Bratsk. While cruising at 4,200 metres, the engine failed. Crew elected to divert to Kirensk but eventually made an emergency landing in a wooded area. All nine occupants were injured as the aircraft was damaged beyond repair.
Probable cause:
Engine failure due to the damage of the bearings of the planetary gear from the first stage, leading to vibration and destruction of the turbine. It is possible the damage to the bearings was caused by the presence of aluminium or silicon oxide. However, it was not possible to determinate the source of this contamination.

Crash of a PZL-Mielec AN-2P in Kirensk

Date & Time: Jun 25, 1994
Type of aircraft:
Operator:
Registration:
CCCP-70263
Flight Phase:
Survivors:
Yes
MSN:
1G139-22
YOM:
1972
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
During initial climb, the engine failed. The aircraft stalled and crashed, bursting into flames. All eight occupants escaped uninjured (or with minor injuries) while the aircraft was destroyed.
Probable cause:
Engine failure during climb out for unknown reasons.

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

Date & Time: Mar 24, 1990
Type of aircraft:
Operator:
Registration:
CCCP-40679
Flight Phase:
Survivors:
Yes
MSN:
1G214-37
YOM:
1985
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
En route, the fuel pressure dropped and the engine lost power. The crew decided to return to his departure point when the engine failed. The crew attempted an emergency landing when the aircraft crashed in the taïga near Kirensk. Both pilots were injured.
Probable cause:
It is believed that the engine failed due to ignition problems.

Crash of a Let L-410MU near Irkoutsk: 4 killed

Date & Time: Aug 26, 1988 at 2218 LT
Type of aircraft:
Operator:
Registration:
CCCP-67235
Survivors:
No
Schedule:
Batagay – Magan – Lensk – Kirensk – Irkutsk
MSN:
77 08 01
YOM:
1977
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
The crew initiated the descent to Irkutsk-Intl Airport by night and was cleared to 3,000 meters then 2,100 and 1,800 meters. The crew failed to realize his altitude was insufficient when the aircraft struck trees and crashed on the top of a hill (700 meters high) located 21 km southeast of the airport. The aircraft was destroyed and all four occupants were killed.
Probable cause:
It was determined that the crew descended below the minimum descent altitude following a wrong altimeter setting. At the time of the accident, the crew was very tired due to a duty time over 15 hours and 26 minutes.

Crash of a PZL-Mielec AN-2 in Kirensk

Date & Time: Oct 25, 1978
Type of aircraft:
Operator:
Registration:
CCCP-07608
Flight Phase:
MSN:
1G156-48
YOM:
1974
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed following an engine failure. Occupant's faite unknown.
Probable cause:
Engine failure for unknown reasons.

Crash of a Yakovlev Yak-40 in Ust-Kut: 7 killed

Date & Time: Dec 17, 1976 at 1940 LT
Type of aircraft:
Operator:
Registration:
CCCP-88208
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Ust-Kut - Kirensk
MSN:
9 63 13 49
YOM:
1976
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
7
Aircraft flight hours:
327
Aircraft flight cycles:
348
Circumstances:
The aircraft was engaged in a cargo flight from Ust-Kut to Kirensk, carrying a crew of three, two technicians of the company and two people in charge of the 1,200 kg of cargo. The crew failed to prepare the flight properly, expedited taxi and departure. The airplane took off from runway 30 at a speed of 155 km/h and with an angle of attack of 15°. After rotation, while in initial climb at a height of 120 metres at a speed of 210 km/h, the pilot raised the flaps when the airplane lost height and descended until it struck trees and crashed in flames 1,500 metres past the runway end. The copilot was seriously injured while all six other occupants were killed. Few hours later, the copilot died from his injuries.
Probable cause:
It was determined that the crew precipitated the takeoff procedure and failed to follow the pre-departure checklist. The following contributing factors were reported:
- Poor flight preparation,
- The cabin was not heated prior to departure,
- The left altimeter was erroneously set with a value 10 mm Hg higher than prescribed (wrong altimeter setting),
- Stabilizers were set at -6° instead of the required -3,6° angle,
- The rotation was completed prematurely,
- During initial climb, flaps were raised at a speed of 210-220 km/h, 20 km/h below the speed mentioned in the Flight Manual,
- Lack of visibility,
- Lack of ground visual references.

Crash of a PZL-Mielec AN-2T near Kirensk

Date & Time: Dec 9, 1974
Type of aircraft:
Operator:
Registration:
CCCP-44917
Flight Phase:
Flight Type:
Survivors:
Yes
MSN:
1G24-17
YOM:
1962
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The airplane was completing a cargo flight from a remote area located 75 km from Kirensk to Kirensk, carrying five oil barrels. Shortly after takeoff, while climbing, the cargo shifted, causing the CofG to be out of the envelope. The pilot attempted an emergency landing when, from a height of 15 meters, the airplane stalled and crashed. There were no injuries.

Crash of an Antonov AN-2 in Kirensk

Date & Time: Nov 4, 1973
Type of aircraft:
Operator:
Registration:
CCCP-41978
Flight Phase:
Survivors:
Yes
MSN:
1 68 473 08
YOM:
1956
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The engine failed in flight, forcing the crew to make an emergency landing. The aircraft crash landed in a field in Kirensk. There were no casualties.

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

Date & Time: May 12, 1972
Type of aircraft:
Operator:
Registration:
CCCP-50506
Flight Phase:
Survivors:
Yes
MSN:
1G88-33
YOM:
1967
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
En route, the engine failed. The aircraft lost height and crash landed in a field near Kirensk. There were no casualties but the aircraft was written off.
Probable cause:
Engine failure in flight.

Crash of an Antonov AN-12B in Kirensk: 6 killed

Date & Time: Dec 7, 1963 at 2351 LT
Type of aircraft:
Operator:
Registration:
CCCP-11347
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Mirnyy – Kirensk – Irkutsk
MSN:
4 018 03
YOM:
1964
Flight number:
SU1076
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
379
Aircraft flight cycles:
188
Circumstances:
The crew was returning to Irkutsk following a cargo flight to Mirnyy. After takeoff from Kirensk Airport, while climbing to a height of some 500 meters, the airplane banked left, dove into the ground and crashed onto a wooden hut located 750 meters south of the airfield. The airplane was totally destroyed and all six crew members were killed.
Probable cause:
It was determined that both left engine lost power shortly after takeoff and progressively failed during climb. The crew elected to feather the propeller but without success. The airplane then banked to the left and crashed at an angle of 70°. Investigations were unable to determine the exact cause of the engine failure but the assumption of an electrical short-circuit or an excessive accumulation of ice in the fuel filter was not ruled out.