Crash of a Lisunov LI-2 in Cherepovets: 4 killed

Date & Time: Sep 11, 1956
Type of aircraft:
Operator:
Registration:
CCCP-N584
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Cherepovets - Cherepovets
MSN:
184 402 08
YOM:
1951
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
The crew was engaged in a night training mission when the aircraft crashed in unknown circumstances in the vicinity of the Cherepovets Airport. All four crew were killed.

Ground accident of a Lisunov LI-2 in Voronezh

Date & Time: Jul 4, 1956 at 1321 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4869
Flight Phase:
Survivors:
Yes
Schedule:
Mineralnye Vody – Rostov-on-Don – Voronezh – Moscow
MSN:
184 355 04
YOM:
1953
Flight number:
SU256
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
8146
Circumstances:
After touchdown at Voronezh Airport, the crew completed the braking procedure and vacated the runway for the taxiway when an explosion occurred in the right engine that caught fire. In the mean time, the right main gear collapsed and the airplane came to rest in flames ont its belly. All occupants (four crew members and an undetermined number of passengers) evacuated safely while the airplane was partially destroyed by fire and declared as written off.
Probable cause:
It was determined that the right main gear rolled on a location of the taxiway that 'housed' three TM-35 anti-tank mines from the Second World War that were buried at an estimated depth of 1, 6 to 1.8 meter. The pressure of the right main landing gear on the earth separating the taxiway surface and the mines triggered the detonator, followed by the explosion of three mines.

Crash of a Lisunov LI-2 near Balkhash Lake: 6 killed

Date & Time: Dec 21, 1955 at 0645 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4981
Flight Phase:
Flight Type:
Survivors:
No
Site:
Schedule:
Almaty – Balkhash – Moscow
MSN:
2 34 433 07
YOM:
22
Flight number:
SU090
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
6
Aircraft flight hours:
4023
Circumstances:
The aircraft left Almaty Airport at 0515LT bound for Moscow via Balkash, carrying one passenger, five crew members, 763 kilos of various goods and 683 kilos of mail. Upon departure, the total weight of the aircraft was 10,722 kilos, 22 kilos above MTOW. Enroute to Balkash, the crew encountered poor weather conditions. While flying in clouds, some instruments failed. The pilot-in-command lost his orientation and then the control of the aircraft that dove into the ground and crashed in a snow covered area located about 105 km southeast of the Balkash Lake. It was determined that the aircraft hit the ground in a 65° nose-down angle at high speed and disintegrated on impact, causing the debris to be scattered on more than 200 meters. All six occupants were killed.
Probable cause:
Failure of a vacuum regulator which cause the dysfunction of the gyrocompas and then the automatic pilot system. While cruising in very low visibility (night and clouds), the crew suffered a spatial disorientation and lost control of the airplane.

Crash of a Lisunov LI-2 on Mt Tordoki-Yani: 21 killed

Date & Time: Dec 9, 1955 at 1207 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4993
Flight Phase:
Survivors:
No
Site:
Schedule:
Yuzhno-Sakhalinsk – Sovietskaya Gavan – Elabuga – Khabarovsk
MSN:
2 34 433 06
YOM:
0
Flight number:
SU976
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
16
Pax fatalities:
Other fatalities:
Total fatalities:
21
Aircraft flight hours:
4021
Circumstances:
After his departure from Sovietskaya Gavan Airport, the crew obtained the permission to continue at the assigned altitude of 2,700 meters. Weather conditions deteriorated enroute with clouds, turbulences and high winds blowing from the north up to 90 km/h. While overflying the Sikhote-Alin Mountain Range, the aircraft encountered downdrafts and lost altitude. The crew increased engine power and elected to gain height but the aircraft continued to descent until it struck the slope of Mt Tordoki-Yani (1,750 meters high). The wreckage was found on December 21, 1955 and all 21 occupants have been killed. It was reported that the aircraft struck the mountain 20 meters below the summit.
Probable cause:
Severe downdraft in altitude caused the aircraft to lose height and to struck the mountain.

Crash of a Lisunov LI-2 near Tyumen: 7 killed

Date & Time: Dec 9, 1955 at 0745 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4339
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
Moscow – Kazan – Sverdlovsk – Petropavl – Pavlodar – Ust-Kamenogorsk
MSN:
184 281 01
YOM:
20
Flight number:
SU101
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
7
Aircraft flight hours:
8612
Circumstances:
The aircraft left Sverdlovsk Airport bound for Petropavl with four passengers, a crew of five, 869 kilos of mail and 496 kilos of various goods. While cruising by night, the crew encountered higher winds than predicted and due to the lack of visibility, lost their orientation and were unable to locate the airport of Petropavl. The captain decided to divert to Kurgan Airport but was unable to contact ground due to communication problems. He then decided to return to Svedlovsk but as the fuel reserves were too low, he eventually decided to continue to Petropavl that was closed due to poor weather conditions. While cruising in snow falls about 215 km from Petropavl Airport, both engines failed due fuel exhaustion. The crew attempted an emergency landing in a snow covered field when the airplane crashed 250 meters from the Omsk-Tyumen railroad. Two passengers were seriously injured while all seven other occupants were killed.
Probable cause:
The accident was the consequence of a loss of orientation by the crew in flight due to the combination of the following factors:
- Lack of discipline on part of the crew,
- Poor flight preparation with the result of insufficient fuel reserve for the entire duration of flight,
- Errors in flight in the navigation calculation. More than two hours of flight were not recorded in the navigator's logbook,
- Failure to use the flight direction finder,
- Poor weather conditions at night with high winds and snow falls,
- Unsatisfactory flight management from RDS Koltsovo and ADS Kurgan.
The following findings were considered as contributing:
- Unjustified weather forecast in the direction of the wind, issued by AMSG Koltsovo,
- Unstable work of the radio compass,
- Insufficient fuel for the operation,
- Unstable work of the communication equipment,
- Low qualification of the communications operators.

Crash of a Lisunov LI-2 in Ozerevo: 7 killed

Date & Time: Sep 28, 1955 at 0003 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4712
Flight Phase:
Survivors:
Yes
Schedule:
Moscow-Vnukovo – Leningrad
MSN:
184 318 01
YOM:
28
Flight number:
SU349
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
13
Pax fatalities:
Other fatalities:
Total fatalities:
7
Aircraft flight hours:
8663
Circumstances:
Enroute from Vnukovo to Leningrad, while cruising at an altitude of 900 meters in clouds, the right engine failed. Unfortunately, the crew was unable to feather the propeller and thus, was unable to maintain a safe altitude. The captain decided to divert to the Vypolzovo Airbase but radio contact with the base was impossible for unknown reason. Eventually, the pilot attempted an emergency landing in a potatoes field located in Ozerevo when the airplane crashed. Five crew members and two passengers were killed while 12 other occupants were injured. The aircraft was destroyed.
Probable cause:
Failure of the right engine in flight caused by an oil leakage due to the failure of a connection hose.

Crash of a Lisunov LI-2 in the Arctic

Date & Time: May 26, 1955
Type of aircraft:
Operator:
Registration:
CCCP-N535
Survivors:
Yes
Schedule:
Bukhta Somnitelnaya - Bukhta Somnitelnaya
MSN:
184 346 02
YOM:
1959
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
4
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On a flight from Bukhta Somnitelnaya (Wrangel Island) to a drifting ice floe in the central Arctic Basin when the ski of the right main landing gear hit an ice hummock during the landing run and broke. The nose of the aircraft touched the ice and the fuselage broke into three when falling back onto the ice. All 6 crew and 4 passengers escaped unhurt and were evacuated by another aircraft. The wreck was set on fire and abandoned on the drifting ice floe. It was spotted by an aircraft of the Icelandic Coast Guard about 155 miles north-west of Iceland (approximately 10-20 miles off Scoresby Sound on Greenland's East Coast) 11DEC1959 but could no longer be found a few days later because of fog. It eventually sank.

Crash of a Lisunov LI-2 in Dniepropetrovsk: 4 killed

Date & Time: May 8, 1955 at 1216 LT
Type of aircraft:
Operator:
Registration:
CCCP-L4098
Flight Type:
Survivors:
No
Schedule:
Kiev – Dniepropetrovsk – Zaporozhie
MSN:
184 143 05
YOM:
1944
Flight number:
SU599
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
4
Aircraft flight hours:
9257
Aircraft flight cycles:
15965
Circumstances:
The aircraft was performing a cargo flight from Kiev to Zaporozhie with an intermediate stop in Dniepropetrovsk, carrying a load of various goods for a total weight of 1,538 kilos, consisting of 566 kilos of mail, signal flares, brass twists and wires, and grinding wheels. On approach, at a height of 200-300 meters, the crew encountered marginal weather conditions, turbulences and strong winds when the left wing partially failed. The aircraft went out of control and crashed onto a hill located nine km short of runway. All four crew members were killed.
Probable cause:
It was determined that the aircraft encountered marginal weather conditions, winds up to 58 km/h and turbulences during the approach, causing the left wing to suffer a partial structural failure.

Crash of a Lisunov LI-2P in Katowice

Date & Time: Apr 14, 1955
Type of aircraft:
Operator:
Registration:
SP-LAE
Survivors:
Yes
MSN:
184 240 01
YOM:
1951
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
12
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Crashed on landing at Katowice Airport for unknown reason. There were no casualties but the aircraft was damaged beyond repair.

Crash of a Lisunov LI-2 in Mys Zhelaniya

Date & Time: Apr 2, 1955
Type of aircraft:
Operator:
Registration:
CCCP-N497
Survivors:
Yes
Schedule:
Mys Zhelaniya - Dikson Island
MSN:
184 307 08
YOM:
1951
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
7
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On a flight from Mys Zhelaniya (Novaya Zemlya) to Dikson Island in support of the Arctic expedition 'Sever 7' when the crew was ordered to land on the ice near Mys Zhelaniya for training purposes. The skis of the landing gear broke through the ice during the landing run. All 7 crew and 3 passengers escaped unhurt but the aircraft could not be recovered in time and sank during a storm 06APR55.
Probable cause:
It was later reported that the ice thickness was about 30 cm at the time of the accident, which is insufficient.