Crash of a Yakovlev Yak-40 in Rostov-on-Don: 1 killed

Date & Time: May 2, 1974 at 1410 LT
Type of aircraft:
Operator:
Registration:
CCCP-87398
Flight Phase:
Survivors:
Yes
Schedule:
Lipetsk – Rostov-on-Don – Mineralnye Vody
MSN:
9 41 10 33
YOM:
1974
Flight number:
SU1255
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
34
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
124
Aircraft flight cycles:
111
Circumstances:
After a roll of 1,040 meters on the wet runway 03, the captain decided to abandon the takeoff procedure but the remaining distance was 40 meters only. Unable to stop on a so short distance, the airplane overran and collided with an embankment 185 meters further, hit a hammock, broke up and came to rest in a ravine. The flight mechanic was killed while 18 other occupants were injured. 19 others were unhurt. The aircraft was destroyed.
Probable cause:
The crew decided to takeoff from an inadequate runway for such type of aircraft (too short runway). Poor flight preparation as the V1 & V2 speed were not verified and properly calculated prior to takeoff. Other factors were considered as contributing such as aircraft weight, wet runway and weather conditions.

Crash of an Antonov AN-12B at SP-22 Polar Sation: 1 killed

Date & Time: May 1, 1974 at 1220 LT
Type of aircraft:
Operator:
Registration:
CCCP-12950
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
SP-22 Polar Station - Dikson
MSN:
8 3 455 01
YOM:
1968
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
9
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
9381
Aircraft flight cycles:
3637
Circumstances:
The SP-22 Polar station was dismantled and several airplanes were dispatched to evacuate personnel and equipment. In the morning, cargo (tractors, woods and various equipment) were loaded on board the AN-12 as well as nine passengers and a crew of seven, en route to Dikson. The ice cracked in the morning and a large crack of about two meters appears, causing the takeoff distance to be 900 meters only. Thus, cargo was offloaded and the crew decided to takeoff with a total weight of 52 tons. During the takeoff roll, the captain started the rotation about 30 meters prior to the crack. Both main landing gear struck the crack, causing the aircraft to be out of control and to crash in flames. The radio navigator was killed while all other occupants were injured, some of them seriously. The aircraft was destroyed.
Probable cause:
The estimated time on ground between the landing and the takeoff was 3 hours and 50 minutes, which was too much as it give time to the ice to crack. It was determined that the crew failed to offload all nine passengers to reduce the total weight prior to takeoff. Also, poor weather conditions during the preceding days caused the evacuation mission to be postponed, which was considered as a contributing factor.

Crash of an Ilyushin II-18V in Leningrad: 109 killed

Date & Time: Apr 27, 1974 at 1807 LT
Type of aircraft:
Operator:
Registration:
CCCP-75559
Survivors:
No
Schedule:
Leningrad - Zaporozhie - Krasnodar
MSN:
186 0077 03
YOM:
1966
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
102
Pax fatalities:
Other fatalities:
Total fatalities:
109
Aircraft flight hours:
18358
Aircraft flight cycles:
7501
Circumstances:
Less than three minutes after takeoff from Leningrad-Pulkovo Airport, while in initial climb, the crew informed ATC about the failure of the engine n°4, declared an emergency and was cleared to return. About three minutes later, the engine n°4 caught fire and exploded. On final, the airplane went out of control, nosed down by an angle of 60° and crashed in a huge explosion in an open field located 2,480 meters short of runway. The aircraft disintegrated on impact and most of the debris were found 242 meters to the right of the extended centerline. None of the 109 occupants survived the crash.
Probable cause:
It was determined that the third stage of the high pressure turbine disintegrated two minutes and 53 seconds after takeoff. The engine then exploded three minutes later and some debris impacted the right aileron that was jammed in a down position while the left aileron was in a up position. This asymmetric situation contributed to the loss of control on short final.

Crash of a Yakovlev Yak-40 in Kazan

Date & Time: Apr 9, 1974
Type of aircraft:
Operator:
Registration:
CCCP-87369
Flight Phase:
Survivors:
Yes
Schedule:
Kazan - Bugulma
MSN:
9 34 19 31
YOM:
1973
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
31
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
During the takeoff roll, after a distance of 650 meters, the engine n°2 failed. The captain decided to continue the takeoff procedure but power and speed were insufficient to rotate. In such conditions, he abandoned the takeoff maneuver but unable to stop within the remaining distance, the aircraft overran and eventually collided with a earth mound. The cockpit was destroyed. All 34 occupants were evacuated, some of them were injured.
Probable cause:
Wrong decisions on part of the captain who continued the takeoff procedure with one engine almost inoperative. Investigations revealed that engine n°2 lost 90% of its power during the takeoff roll for unknown reasons.

Crash of an Ilyushin II-14P in Ust-Kuyga

Date & Time: Apr 6, 1974
Type of aircraft:
Operator:
Registration:
CCCP-52053
Survivors:
Yes
MSN:
047704110
YOM:
1957
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
15
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
After touchdown, the crew started the braking procedure when the flight engineer inadvertently raised the landing gear. The aircraft sank on its belly and slid for dozen meters before coming to rest. All 18 occupants escaped uninjured while the aircraft was written off.
Probable cause:
Inadvertent raise of the undercarriage after landing.

Crash of a Lisunov LI-2 in Kirov: 3 killed

Date & Time: Mar 22, 1974 at 0800 LT
Type of aircraft:
Operator:
Registration:
CCCP-73960
Flight Phase:
Survivors:
Yes
Schedule:
Kirov - Sovetsky
MSN:
184 366 05
YOM:
1951
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
6
Pax fatalities:
Other fatalities:
Total fatalities:
3
Aircraft flight hours:
7589
Aircraft flight cycles:
6485
Circumstances:
After a takeoff distance of 430 meters completed in 26 seconds, the pilot-in-command initiated the rotation at a speed of 120 km/h. The airplane continued to climb when, at a height of 10 meters, the left engine failed. The airplane continued to climb until a height of 50 meters when it banked left to an angle of 80° then stalled and crashed at a speed of 170 km/h not far from the runway end. While all six passengers were injured, all three crew members were killed.
Probable cause:
It was determined that the left engine malfunction was caused by the failure of the 9th cylinder valve. Wrong reaction from the crew caused the speed to drop too low, causing the aircraft to stall and crash. Poor flight organization, poor crew training supervision were considered as contributing factors as well as the fact that the captain decided to takeoff without a flight engineer.

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

Date & Time: Feb 5, 1974
Type of aircraft:
Operator:
Registration:
CCCP-01579
Flight Phase:
Survivors:
Yes
Site:
MSN:
1G81-23
YOM:
1967
Country:
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The crew was engaged in a mission on behalf of the Makhachkalinski OAO. While cruising in below minima weather conditions, the single engine airplane struck a hill and crashed near Makhachkala. There were no casualties.

Crash of an Antonov AN-24B in Rostov-on-Don: 4 killed

Date & Time: Jan 25, 1974 at 2142 LT
Type of aircraft:
Operator:
Registration:
CCCP-46277
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Rostov-on-Don - Ufa
MSN:
77303610
YOM:
1967
Country:
Region:
Crew on board:
4
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
4
Aircraft flight hours:
11277
Aircraft flight cycles:
10750
Circumstances:
Following a heavy maintenance program at the Rostov-on-Don Manufacture Plant, the aircraft was on its way back to Ufa, carrying a crew of four. The departure from Rostov Airport was initiated at night and poor visibility due to thick fog. After a normal takeoff roll, the pilot-in-command started the rotation at a speed of 200 km/h and continued to climb in zero visibility. At an altitude of about 220 meters, a first turn to the left was initiated when the airplane rolled left to an angle of 25-30°. At a speed of 325 km/h, flaps were selected up when inconsistent actions occurred between the PIC and the copilot. The copilot elected to reduce the roll to acceptable values, as a result, the rudder trim was positioned to the right hand limit but the airplane seems to become unstable. At this time, the crew reduced the engine operation to nominal values when the noticed a discrepancy between the readings of the left and right artificial horizons. The crew tried to determine which artificial horizon gives the wrong readings when the airplane entered a left turn and crashed at a speed of 430 km/h in an open field located 1,750 meters past the runway end, 17 seconds after liftoff. The aircraft was totally destroyed and all four occupants were killed.
Probable cause:
It was determined that the loss of control that occurred during initial climb was the result of an anomaly in the Captain's artificial horizon, either because of a misreading on his part or because of a problem with the power supply system. Investigators stated that the accident occurred through visibility below minimums and that the crew's decision to fly by night under such conditions was unjustified. Also, it was noted that the crew failed to prepare the flight according to published procedures and that he precipitated the departure, which remains a contributing factor insofar as certain procedures were neglected.

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

Date & Time: Jan 22, 1974 at 0950 LT
Type of aircraft:
Operator:
Registration:
CCCP-33225
Survivors:
No
Schedule:
Yegorlykskaya - Yegorlykskaya
MSN:
1G57-28
YOM:
1965
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
2
Aircraft flight hours:
5558
Aircraft flight cycles:
19860
Circumstances:
While on a crop spraying flight for the sovkhoz (state farm) im. Kirova in the Yegorlykskaya district of the Rostov region, the crew encountered below minima weather conditions (poor visibility) due to thick fog. On approach, the pilot was unable to locate the airfield and decided to descend at an unsafe altitude when the airplane struck the ground and crashed in flames in a snow covered field located 1 km short of runway. The aircraft was destroyed by fire and both pilots were killed.
Probable cause:
Poor flight organization and wrong decision on part of the crew who decided to continue the approach in below minima weather conditions.

Crash of a PZL-Mielec AN-2V near Khantaiskoye Ozero: 1 killed

Date & Time: Dec 24, 1973 at 1926 LT
Type of aircraft:
Operator:
Registration:
CCCP-32448
Flight Phase:
Flight Type:
Survivors:
Yes
Site:
Schedule:
Dudinka – Khantaiskoye Ozero
MSN:
1G102-09
YOM:
1969
Country:
Region:
Crew on board:
2
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
1
Aircraft flight hours:
4840
Aircraft flight cycles:
4326
Circumstances:
On a cargo flight from Dudinka to Khantaiskoye Ozero settlement (Taimyr) during the polar night when the crew decided to cut the route short although visibility was poor. On approach to Khantaiskoye Ozero, crew was unable to establish the position of the aircraft as the frequency of the radio beacon at Khantaiskoye Ozero had been changed without notice. The crew started the descent when the aircraft crashed at a height of 1,016 metres into the northern slope of a mountain (1,044 metres high) located some 28 km east of Khantaiskoye Ozero. The copilot was killed and the captain was seriously injured and rescued two days later, on December 26, 1973.
Probable cause:
Wrong decisions taken en route by the crew who decided to modify his itinerary. The frequency of the radio beacon at destination had been changed without notice, which was considered as a contributory factor.