Crash of a Tupolev TU-134A in Prague

Date & Time: Oct 11, 1988
Type of aircraft:
Operator:
Registration:
OK-AFB
Survivors:
Yes
MSN:
1 35 14 10
YOM:
1971
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
21793
Aircraft flight cycles:
20131
Circumstances:
Landed hard at Prague-Ruzyne Airport and was damaged beyond repair. There were no casualties.

Crash of a Tupolev TU-134A in Berlin: 72 killed

Date & Time: Dec 12, 1986 at 1800 LT
Type of aircraft:
Operator:
Registration:
CCCP-65795
Survivors:
Yes
Schedule:
Minsk - Prague - Berlin
MSN:
63145
YOM:
1980
Flight number:
SU892
Country:
Region:
Crew on board:
9
Crew fatalities:
Pax on board:
73
Pax fatalities:
Other fatalities:
Total fatalities:
72
Aircraft flight hours:
12658
Aircraft flight cycles:
8482
Circumstances:
Originally, flight SU892 was a direct service from Minsk to Berlin but due to poor weather at Berlin, the flight was diverted to the alternate Airport of Prague-Ruzyne. Following an uneventful flight from Prague, the crew started the descent to Berlin-Schönefeld Airport. At that time, weather conditions were marginal with limited visibility to 900 meters and a ceiling down to 60 meters. After the crew was cleared for an ILS approach to runway 25L, ATC turned on the runway 25R lighting system while informing all crews that runway 25R was closed to traffic due to work in progress. These transmissions being done in english, a misinterpretation of the situation conducted the crew to continue the approach to runway 25R. On short final, ATC realized the wrong position of the aircraft and instructed the crew to make a left turn to reach the runway 25L approach path. With flaps down at 38° and at a speed of 263 km/h, the captain initiated a left turn and descended below the glide. With a rate of descent of 7 meters per second, the aircraft struck tree tops then stalled and crashed in a wooded area located 3 km short of runway threshold, bursting into flames. Twelve passengers were seriously injured while 70 other people were killed. Two weeks later, two of the survivors died from their injuries.
Probable cause:
It was determined that the instructions transmitted by ATC on short final were unexpected by the flight crew who took wrong decisions. Because another aircraft of the Hungarian national carrier Malev was also approaching Berlin Airport, ATC messages were transmitted in english on the frequency, and certain elements of the different messages were misinterpreted by the different members of the Soviet crew. On this point, the following contributing factors were reported:
- Lack of crew coordination,
- Absence of cross checks and mutual controls in the various actions,
- Difficulties to understand the english phraseology,
- Lack of knowledge and experience in applying the rules related to radio transmission during international flights.
Considering the situation, the captain should have taken the decision to initiate a go-around procedure, all safety conditions being clearly not met.

Crash of a Tupolev TU-154B in Prague

Date & Time: Oct 21, 1981
Type of aircraft:
Operator:
Registration:
HA-LCF
Survivors:
Yes
Schedule:
Amsterdam - Prague - Budapest
MSN:
75A126
YOM:
1976
Flight number:
MA641
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
75
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
8983
Aircraft flight cycles:
5642
Circumstances:
The descent to Prague-Ruzyne Airport was completed in marginal weather conditions with limited visibility. On final approach the airplane was too high on the glide and the crew decided to continue. At a height of about 5 meters, the crew deployed de spoilers and reduced the engine power, causing the airplane to descent abruptly. It struck the runway surface with a positive acceleration of 4 g and broke in two before coming to rest in the center of the runway. All 81 occupants were evacuated, among them 40 were injured. The aircraft was damaged beyond repair.
Probable cause:
Wrong approach configuration on part of the flying crew who decided to continue the approach, against published procedures. The captain failed to initiate a go-around maneuver.

Crash of an Avia 14T in Bratislava: 4 killed

Date & Time: Feb 11, 1977
Type of aircraft:
Operator:
Registration:
OK-OCA
Flight Type:
Survivors:
Yes
Schedule:
Prague -Bratislava
MSN:
191 013 167
YOM:
1960
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
2
Pax fatalities:
Other fatalities:
Total fatalities:
4
Circumstances:
On approach to Bratislava-Ivanka-Milan Rastislav Štefánik Airport, the crew encountered poor visibility. He passed below the decision height until the aircraft struck the ground and crashed in a field located 1,800 metres short of runway 22. A crew member was injured while four other occupants were killed.
Probable cause:
The crew continued the approach after passing below the decision height in marginal weather conditions.

Crash of a Tupolev TU-134A in Prague

Date & Time: Jan 2, 1977
Type of aircraft:
Operator:
Registration:
OK-CFD
Survivors:
Yes
Schedule:
Leningrad - Prague
MSN:
2 35 15 05
YOM:
1972
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
42
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
On final approach to Prague-Ruzyne Airport in limited visibility, the crew was cleared to land. Upon landing, the Tupolev collided with a CSA Ilyushin II-18V registered OK-NAA. With six crew members on board, the II-18 was just cleared to line up for takeoff. While the II-18 was slightly damaged, the TU-134 veered off runway, lost its undercarriage and came to rest in a snow covered field. All 48 occupants were evacuated safely, four of them were injured.
Probable cause:
It was determined that the air traffic controller based in the tower just cleared the crew of the II-18 to line up on the same runway where the crew of the TU-134 was cleared to land few seconds earlier. The separation time was insufficient. The lack of visibility was considered as a contributing factor as both crew failed to see each other.

Crash of an Ilyushin II-18V in Bratislava: 76 killed

Date & Time: Jul 28, 1976 at 0937 LT
Type of aircraft:
Operator:
Registration:
OK-NAB
Survivors:
Yes
Schedule:
Prague - Bratislava
MSN:
189 0016 05
YOM:
1959
Flight number:
OK001
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
73
Pax fatalities:
Other fatalities:
Total fatalities:
76
Circumstances:
While descending to runway 22 at Bratislava-Ivanka-Milan Rastislav Štefánik Airport, the crew adopted a wrong approach configuration and descended with a rate of descent of 22 m/s instead of 10 m/s. This caused the airplane to be unstable while its speed varied from 435 to 225 km/h. Flaps were directly selected from zero to full down position, which caused the airplane's speed to decrease. Reverse thrust were activated on both engines n°2 and 3 below the altitude of 1,000 metres. At this time, the engine n°3 failed and in a certain confusion, the crew inadvertently feathered the propeller on engine n°4. During the last segment, about 50 metres above the runway threshold, the captain considered a missed approach and decided to initiate a go-around manoeuvre. The airplane climbed to an altitude of 40 metres and turn to the right when the engine n°4 was restarted. The airplane rolled to the right then stalled and crashed in the Zlaté piersky Lake located one km short of runway 13 threshold, northwest of the airport. Four passengers were rescued while 75 other occupants were killed. Few hours later, one of the survivor died from his injuries.
Probable cause:
Wrong approach configuration on part of the flying crew who failed to follow the approved procedures. The following contributing factors were reported:
- Poor approach planning,
- Poor crew coordination,
- Unstable approach,
- Failure of the n°3 engine,
- Reverse thrust activated on engines n°2 and 3 at an unsafe altitude,
- Propeller on engine n°4 inadvertently feathered on approach,
- Inappropriate decisions on part of the captain,
- Poor flight supervision.

Crash of a Douglas DC-9-32 in Prague: 75 killed

Date & Time: Oct 30, 1975 at 0920 LT
Type of aircraft:
Operator:
Registration:
YU-AJO
Survivors:
Yes
Schedule:
Tivat - Prague
MSN:
47457/620
YOM:
1971
Flight number:
JP450
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
115
Pax fatalities:
Other fatalities:
Total fatalities:
75
Circumstances:
While descending to Prague-Ruzyne Airport, the crew encountered poor weather conditions with fog, rain and a visibility limited to 1,500 meters. The crew passed below the MDA and the aircraft entered the Vltava Valley when the captain decided to gain height and increased engine power. The airplane struck tree tops and crashed in a residential area (houses and gardens) located about 8 km short of runway. 45 people were injured, among them a crew member, while 75 other occupants were killed. At the time of the accident, the ILS system was inoperative.
Probable cause:
The crew descended below the MDA in foggy conditions until the airplane struck obstacles and crashed.

Crash of an Ilyushin II-62 near Damascus: 126 killed

Date & Time: Aug 20, 1975 at 0113 LT
Type of aircraft:
Operator:
Registration:
OK-DBF
Survivors:
Yes
Site:
Schedule:
Prague - Damascus - Baghdad - Tehran
MSN:
31502
YOM:
1973
Flight number:
OK542
Country:
Region:
Crew on board:
11
Crew fatalities:
Pax on board:
117
Pax fatalities:
Other fatalities:
Total fatalities:
126
Circumstances:
While approaching Damascus International Airport by night and excellent weather conditions, the crew failed to realize his altitude was insufficient when the airplane struck the ground at an altitude of 605 meters AMSL and crashed in flames in a desert area located about 18 km from the airport. Rescue teams arrived on scene about 30 minutes later and two passengers, two Syrian citizens, were rescued. All 126 other occupants were killed, among them 67 Czechs, 55 Syrians, 3 Polish and one East-German. At the time of the accident, weather conditions were ideal with good visibility despite the night and a wind from 230° at 10 knots.
Probable cause:
The exact cause of the accident could not be determined with certainty. However, it is believed that the accident may have been caused by a wrong altimeter setting after the crew mixed QNH and QFE values.

Crash of an Avia 14-40 in Prague

Date & Time: Jan 15, 1975
Type of aircraft:
Operator:
Registration:
OK-MCM
Survivors:
Yes
MSN:
838 061 06
YOM:
1958
Region:
Crew on board:
0
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Suffered an accident at Prague-Ruzyne Airport. The mishap occurred somewhere in January 1975 (exact date unknown). There were no injuries but the aircraft was written off.

Crash of a Tupolev TU-154 in Prague: 66 killed

Date & Time: Feb 19, 1973 at 1006 LT
Type of aircraft:
Operator:
Registration:
CCCP-85023
Survivors:
Yes
Schedule:
Moscow - Prague
MSN:
72A023
YOM:
1972
Flight number:
SU141
Region:
Crew on board:
13
Crew fatalities:
Pax on board:
87
Pax fatalities:
Other fatalities:
Total fatalities:
66
Captain / Total flying hours:
12650
Captain / Total hours on type:
236.00
Copilot / Total flying hours:
14650
Copilot / Total hours on type:
247
Aircraft flight hours:
459
Aircraft flight cycles:
261
Circumstances:
The aircraft took off at 0650 GMT on a scheduled flight Moscow - Prague. Over the territory of the USSR the flight proceeded at 10 000 m, and this altitude was increased over the Romanian People's Republic to 10 650 m. Over Warsaw the aircraft was cleared to descend to 9 400 m, and near the Czechoslovak frontier it was cleared again to 8 850. The frontier was crossed at 6 700 m, the crew complying with all instructions. At 0854 GMT the aircraft reported overhead OKX that it had descended from 7 200 m to 6 700 m. Prague ACC cleared it to continue descent to 2 450 m and tune to Rodnice (RCE) VOR. At 0856 GMT the aircraft was instructed to maintain a track which would keep it in the middle of the airway. At 0900 GMT the aircraft reported overhead Rodnice at 2 450 m and was instructed to change over to the approach frequency 121.4 MHz. The aircraft at once contacted approach control and was cleared to fly via MO until it intercepted the approach beacon, then to descend to 1 200 m and report when crossing 1 500 m. The crew complied with these instructions. At 0902 GMT the aircraft reported descending through 1 500 m on a 135O heading and was instructed to change over to the ATC radar frequency. On this frequency it was cleared to continue flying to the ILS approach beacon, was given priority to land on Runway 25 and instructed to descend to 500 m on QFE 730.1 mm. At 0904 GMT the aircraft was cleared to descend to 350 rn on QFE and was informed that it was 2 km off the course line. After 40 seconds the radar controller informed the aircraft that it was correctly aligned and 15 km from the aerodrome, and at 0905 GMT he instructed the aircraft to switch over to the TWR frequency. After changeover the aircraft reported to TWR that it was approaching to land. TWR cleared it to land on Runway 25 and reported a change in the wind direction and speed to 250' - 4 m/s. At 0906 GMT, at its own request, the aircraft was given runway braking coefficient 5 and again cleared to land. This data was acknowledged by the aircraft at 0906.30 GMT, and this was the last contact with it. The aircraft flew the correct heights and headings and did not report any defects or trouble on the ATC frequencies. The descent to land proceeded normally along the ILS glide path up to the vicinity of the "L" marker. Near this aid the aircraft suddenly ducked under the glide path, continued to descend at an average angle of 4.62° to the glide path and struck the ground with the nosewheel at a point 467 m before the threshold of Runway 25. The aircraft disintegrated on impact and was also destroyed by a post crash fire. Four stewardesses and 62 passengers were killed, 18 occupants were seriously injured and 16 were uninjured.
Probable cause:
Owing to the high degree of destruction and total disintegration of the aircraft in the crash and ensuing fire it was not possible to establish the precise cause of the accident. The influence of unexpected atmospheric turbulence during the aircraft's final approach cannot be entirely ruled out.
Final Report: