Irkutsk-Intl

Survivors:

Site:

Plain, Valley

Schedule:

Irkutsk – Bratsk

MSN:

1G75-41

YOM:

1966

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Circumstances:

En route from Irkutsk to Bratsk, weather conditions worsened with thunderstorms. The crew deviated from the prescribed route when few minutes later, the fuel alarm sounded. The crew attempted an emergency landing when the airplane crash landed in a wooded area. There were no casualties but the aircraft was damaged beyond repair.

Probable cause:

Low fuel conditions forced the crew to attempt an emergency landing. The weather forecast bulletin transmitted to the crew did not reflect the truth and did not mention any thunderstorm activity en route.

Crash of an Avia 14 in Vitim: 39 killed

Date & Time: Jul 20, 1977

Type of aircraft:

Avia 14

Operator:

Registration:

CCCP-52096

Flight Phase:

Takeoff (climb)

Flight Type:

Survivors:

Site:

Republic of Yakutia (Sakha)

Schedule:

Vitim - Irkutsk

MSN:

086 806109

YOM:

1958

Flight number:

SU002B

Location:

Vitim

Country:

Russia

Region:

Asia

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

20464

Aircraft flight cycles:

20467

Circumstances:

The takeoff was attempted from a dirt runway with puddles. After a course of 345 meters, the pilot-in-command started the rotation and the nose gear left the ground. 150 meters further, the right main gear struck two cones located on the right side of the runway. The airplane went off runway then took off after a course of 945 meters. During initial climb, after a course of 200 meters and at an altitude of 14 meters, the airplane struck trees, stalled and crashed in flames in a wooded area. A passenger was injured while 39 other occupants were killed. The aircraft was destroyed by a post crash fire.

Probable cause:

The crew attempted to takeoff from an impassable runway with a tailwind component.

Crash of a Tupolev TU-104A in Irkutsk: 24 killed

Date & Time: Feb 9, 1976 at 0805 LT

Type of aircraft:

Operator:

Registration:

CCCP-42327

Flight Phase:

Takeoff (climb)

Flight Type:

Survivors:

Site:

Schedule:

Irkutsk – Novosibirsk – Sverdlovsk – Leningrad

MSN:

6 66 002 01

YOM:

1956

Flight number:

SU3739

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

104

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

22069

Aircraft flight cycles:

10308

Circumstances:

At liftoff, the right wing dropped and the airplane rolled to the right to an angle of 70°, causing the right wing to struck the snow covered ground 129 metres to the right of the runway. Out of control, the airplane crossed a taxiway, passed behind an air Koryo TU-154 that just landed (some debris struck the TU-154) and came to rest in flames, broken in three, 232 metres further. The wreckage was found 180 metres southeast of the runway end. 78 people, among them a stewardess, were injured, 12 people were unhurt. 24 occupants were killed, 15 passengers and nine crew members.

Probable cause:

The loss of control after rotation was caused by the combination of an asymmetrical fueling and pilot errors. It was determined that there was a difference of 1,500 kg of fuel between both wing tanks; 1,500 kg more in the right wing tank than the left wing tank, causing an excessive weight in the right wing. An excessive angle of attack after rotation above the allowable values and the lack of reaction from the pilot-in-command who failed to correct the situation for a period of eight seconds, caused the aircraft to reach an excessive right roll angle of 70° and to crash.

Crash of a PZL-Mielec AN-2R in Irkoutsk: 13 killed

Date & Time: Dec 4, 1974 at 0958 LT

Type of aircraft:

PZL-Mielec AN-2

Operator:

Registration:

CCCP-49342

Flight Phase:

Takeoff (climb)

Flight Type:

Survivors:

Site:

Schedule:

Irkutsk - Kazachinskoye

MSN:

1G12-26

YOM:

1961

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

10667

Circumstances:

The crew was cleared to takeoff from runway 30 at Irkutsk-Intl Airport, bound for Kazachinskoye, carrying 11 passengers and a crew of two. While climbing to an altitude of 270 meters in limited visibility, the AN-2 collided with an Aeroflot AN-12B registered CCCP-12985 that was carrying seven crew members who were performing a local training flight. Following the collision, the AN-2 went out of control and crashed in flames 200 meters further. All 13 occupants were killed. The crew of the AN-12 elected to make an emergency landing when the aircraft crash landed in a prairie located 3,980 meters past the runway end. It slid on the ground for 220 meters before colliding with a concrete mast that cut the airplane in two. All seven crew members escaped uninjured.

Probable cause:

It was determined that the collision was the consequence of wrong decision and poor planning on part of ATC acting in the tower at Irkutsk-Magan Airport. Lack of visibility was considered as a contributing factor.

Crash of an Antonov AN-12B in Irkoutsk

Date & Time: Dec 4, 1974 at 0958 LT

Type of aircraft:

Antonov AN-12

Operator:

Registration:

CCCP-12985

Flight Phase:

Flight Type:

Training

Survivors:

Site:

Schedule:

Irkutsk - Irkutsk

MSN:

00 347 110

YOM:

1970

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

5811

Aircraft flight cycles:

2617

Circumstances:

The crew was engaged in a local training mission at Irkutsk-Intl Airport. During a ninth approach to runway 30, the crew was cleared to initiate a go-around according to the training program. While climbing to an altitude of 270 meters in limited visibility, the AN-12 collided with an Aeroflot PZL-Mielec AN-2R registered CCCP-49342. En route to Kazachinskoye, the AN-2 just took off from the same runway with 11 passengers and two pilots on board. Following the collision, the AN-2 went out of control and crashed in flames 200 meters further. All 13 occupants were killed. The crew of the AN-12 elected to make an emergency landing when the aircraft crash landed in a prairie located 3,980 meters past the runway end. It slid on the ground for 220 meters before colliding with a concrete mast that cut the airplane in two. All seven crew members escaped uninjured.

Probable cause:

Crash of a Tupolev TU-104B near Chita: 81 killed

Date & Time: May 18, 1973 at 0938 LT

Type of aircraft:

Operator:

Registration:

CCCP-42411

Flight Phase:

Flight

Flight Type:

Survivors:

Site:

Plain, Valley

Schedule:

Moscow – Chelyabinsk – Novosibirsk – Irkutsk – Chita

MSN:

8 2 03 03

YOM:

1958

Flight number:

SU109

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

19329

Aircraft flight cycles:

8841

Circumstances:

While in cruising altitude on the leg from Irkutsk to Chita, a hijacker went into the cockpit and ordered the crew to fly to China. Negotiations between the crew and the hijacker were unfruitful and after few minutes, a member of the militia shot the hijacker. Before dying, the hijacker was able to fire a system connected to several grenades attached to his belt. A huge detonation occurred in the cabin, causing the aircraft to disintegrate in the air. From an altitude of 6,500 meters, the airplane entered a dive and crashed in the taiga about 97 km west of Chita. Debris were found on a wide area and none of the 81 occupants survived the crash. Soviet Authorities later reported that the hijacker was a mental imbalance and explained his gesture by their recent refusal to grant him a job position within the diplomatic corps.

Probable cause:

Explosion of a 'bomb' after being hijacked.

Crash of a Yakovlev Yak-40 in Bratsk: 18 killed

Date & Time: May 4, 1972 at 2334 LT

Type of aircraft:

Yakovlev Yak-40

Operator:

Registration:

CCCP-87778

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Irkutsk - Bratsk

MSN:

9 04 03 14

YOM:

1970

Flight number:

SU608

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

1667

Aircraft flight cycles:

2249

Circumstances:

The three engine aircraft departed Irkutsk-Magan Airport at 2229LT bound to the north, cruising at an altitude of 6,000 meters. Weather conditions en route were good. While descending to Bratsk Airport, the crew was informed about the last weather bulletin with no precipitations and a visibility of 50 km. However, during the night approach, weather conditions deteriorated with heavy mixed rain/snow showers and a visibility limited to one km. On short final, the airplane lost height then struck trees and crashed in flames 225 meters further, about 1,250 meters short of runway threshold. The airplane was destroyed by impact forces and a post crash fire and all 18 occupants were killed.

Probable cause:

It was determined that ATC in Bratsk transmitted to the crew a wrong weather bulletin that was referring to weather conditions at 2315LT. Unfortunately, ATC attempted without success to obtain an updated weather briefing and transmitted inaccurate information to the crew. On final, heavy snow/rain showers associated with downdraft and unfavorable winds caused the aircraft to lose height and to crash. The assumption that the crew inadvertently selected the reverse thrust during final approach was not ruled out.

Crash of a Tupolev TU-104B in Irkutsk: 97 killed

Date & Time: Jul 25, 1971 at 0835 LT

Type of aircraft:

Operator:

Registration:

CCCP-42405

Flight Phase:

Flight Type:

Survivors:

Site:

Schedule:

Odessa – Kiev – Chelyabinsk – Novosibirsk – Irkutsk – Khabarovsk – Vladivostok

MSN:

8 2 02 02

YOM:

1958

Flight number:

SU1912

Location:

Country:

Region:

Crew on board:

Crew fatalities:

Pax on board:

118

Pax fatalities:

Other fatalities:

Total fatalities:

Aircraft flight hours:

19489

Aircraft flight cycles:

9929

Circumstances:

Flight SU1912 departed Odessa Airport in Ukraine on July 24 to Vladivostok with intermediate stops in Kiev, Chelyabinsk, Novosibirsk, Irkutsk and Khabarovsk. While descending to Irkutsk-Intl Airport in the morning, the crew encountered poor weather conditions with low clouds and rain falls. As the visibility was limited, the crew was unable to locate the runway and obtained an ATC assistance on final. Unfortunately, the aircraft was unstable and the crew was instructed by ATC to turn to the right to reach the glide as the aircraft was descending to the left. At an excessive vertical speed and an approach speed 32 km/h below the prescribed approach speed, the aircraft banked left and right. The right main gear struck the runway surface 154 meters past the runway threshold and the left main gear touched the ground 183 meters from the threshold. The ground impact was in excess of the g-load certification. After touchdown, the airplane went out of control, deviated from the centerline to the left, lost its left wing and came to rest in flames after a course of 500 meters to the left of the main runway. 97 occupants, among them four crew members, were killed, while 29 other occupants were injured. The aircraft was destroyed.

Probable cause:

One of the flight data recorder was out of service at the time of the accident due to lack of sufficient technical controls. The second data recorder disconnected when the right main gear impacted the runway surface. Investigations revealed that the aircraft' speed was 32 km/h lower than the prescribed speed when the vertical speed was too high, which prevented the pilots to complete a correct touchdown and avoid the violent impact with the runway surface. Aerodynamic forces recorded at impact exceeded the certification of the aircraft, resulting in a loss of control and then the failure of the left wing. The probable cause of the loss of speed on short final could be the combination of a series of erroneous actions on part of the flying crew, coupled with incorrect speed indication, possibly be due to a leak of the power system that occurred at low altitude and in marginal weather conditions.

Crash of a Tupolev TU-104B in Irkutsk

Date & Time: Apr 28, 1969

Type of aircraft:

Operator:

Registration:

CCCP-42436

Flight Phase:

Flight Type:

Survivors:

Site: