Zone

Crash of a Tupolev TU-154M near Qazvin: 168 killed

Date & Time: Jul 15, 2009 at 1133 LT
Type of aircraft:
Operator:
Registration:
EP-CPG
Flight Phase:
Survivors:
No
Schedule:
Tehran - Yerevan
MSN:
87A-748
YOM:
1987
Flight number:
RV7908
Location:
Country:
Region:
Crew on board:
12
Crew fatalities:
Pax on board:
156
Pax fatalities:
Other fatalities:
Total fatalities:
168
Aircraft flight hours:
26593
Aircraft flight cycles:
16248
Circumstances:
The three engine aircraft departed Tehran-Imam Khomeiny Airport at 1117LT on a regular schedule flight to Yerevan, carrying 158 passengers and 10 crew members. Sixteen minutes after takeoff, while cruising over Qazvin at FL340, the aircraft suddenly changed its heading to 270° and then entered a rapid descent, losing 20,000 feet in 90 seconds. In a near vertical attitude, the aircraft crashed in an open field, causing a large crater. The aircraft disintegrated on impact and all 168 occupants were killed.
Probable cause:
Failure of the first stage of the high compressor disk on the left engine while the aircraft was flying at FL340, due to fatigue cracks. Debris punctured the engine nacelle, and several hydraulic and fuel lines were cut while all control systems were unserviceable. A huge fire spread on the left side of the airplane and the airplane entered an uncontrolled descent until impact.
Final Report:

Crash of a Canadair RegionalJet CRJ-100ER in Yerevan

Date & Time: Feb 14, 2008 at 0415 LT
Operator:
Registration:
EW-101PJ
Flight Phase:
Survivors:
Yes
Schedule:
Yerevan - Minsk
MSN:
7316
YOM:
1999
Flight number:
BRU1834
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
18
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
15563
Aircraft flight cycles:
14352
Circumstances:
A Canadair CRJ100ER passenger jet, operated by Belavia, was destroyed when crashed and burned on takeoff from Yerevan-Zvartnots Airport (EVN), Armenia. All three crew members and eighteen passengers survived the accident. The airplane arrived as flight BRU1833 from Minsk-2 International Airport (MSQ), Belarus at 02:05. Refueling was carried out in preparation for the return flight and the crew conducted the flight planning. After refueling the pilot carried out a tactile and visual inspection of all critical surfaces of the wing and visual inspection of the tail assembly. All the planes were clean and dry. The weather reported for the 04:00 was: wind 110 degrees at the ground 1 m/sec, visibility 3500 meters, haze, small clouds, vertical visibility of 800 meters, scattered clouds at 3000 m, a temperature of minus 3° C, dew point minus 4° C, pressure 1019 hPa. At 04:08 both engines were started. The engine air intake heating (cowl anti-ice) was switched on but the wing anti-icing system was not switched on. The crew taxied to runway 27 and were cleared for departure. During takeoff the airplane progressively banked left until the left wing tip contacted runway. The airplane went off the side with the airplane rolling the right. The right hand wing broke off and spilled fuel caught fire. The airplane came to rest upside down.
Probable cause:
The accident involving aircraft CRJ-100LR registration number EW-101PJ was the result of an asymmetric loss of lift of the wing during take-off, which led to the toppling of the aircraft immediately after liftoff from the runway, the left wing tip contacting the ground, the subsequent destruction and fire. The reason for the loss of lift of the wing at the actual weather conditions, was the formation of frost, which "pollutes" the surface of the wing. The cause of formation of frost, most likely, was the fuel icing, while the aircraft was parked at the airport and during taxiing for the return flight, resulting in a difference in temperature of the surrounding air and cold fuel in the tanks after the flight. The situation could be aggravated when exceeding the values recommended by the operations manual of the angular velocity when lifting the nose wheel during takeoff with "contaminated" wings when it is impossible to monitor this parameter instrumentally. Existing procedural methods of control of the aerodynamic surfaces of the aircraft before departure, along with the inefficiency, during takeoff, the existing system of protection from stalling due to increased sensitivity of the wing, even to a slight contamination of the leading edge, can not fully guarantee the prevention of similar accidents in future. An Airworthiness Directive on the need to include anti-icing systems on the wing in the final stage of taxiing at the actual weather conditions was issued by Transport Canada after the accident. This probably could have prevented the accident.

Crash of an Airbus A320-211 off Sochi: 113 killed

Date & Time: May 3, 2006 at 0213 LT
Type of aircraft:
Operator:
Registration:
EK-32009
Survivors:
No
Schedule:
Yerevan - Sochi
MSN:
547
YOM:
1995
Flight number:
RNV967
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
105
Pax fatalities:
Other fatalities:
Total fatalities:
113
Captain / Total flying hours:
5458
Captain / Total hours on type:
1436.00
Copilot / Total flying hours:
2185
Copilot / Total hours on type:
1022
Aircraft flight hours:
28234
Aircraft flight cycles:
14376
Circumstances:
On 2 May 2006 the Armavia A320, registered EK-32009, was undertaking passenger flight RNV 967 from Zvartnots (Yerevan, Armenia) to Adler (Sochi, Russia). Preliminary preparation of the crew was conducted on 23-24 May 2006 under the guidance of the airline’s Flight Director, in accordance with the requirements of ROLRGA RA-2000, Section 7.2.1. Pre-flight briefing of the crew was conducted on the day of departure, under the guidance of the Captain, in accordance with the requirements of ROLRGA RA-2000, Section 8.2.1 On 2 May 2006 at 19.30 the crew passed the pre-flight medical examination. The crew’s pre-flight rest period exceeded 24 hours. In accordance with ROLRGA RA-2000 and Work-Rest Norms for civil aircraft crews from the Republic of Armenia, each crew member is individually responsible for adherence to the pre-flight rest regime. It should be noted that it was difficult for the crew to take adequate rest during the day before the night flight, due to impairment of bio-rhythms. That is most likely why, in their cockpit conversations the crew members mentioned that they had not got enough sleep. In order to make their decision for departure, the crew obtained the observed weather data and the weather forecast for the takeoff, landing and alternate aerodromes that met the requirements for IFR flights. According to the documents submitted, the airplane takeoff weight and the centre of gravity were 62,712 kg and 29.9% mean aerodynamic chord, i.e. within the A320 FCOM limitations. There were 113 occupants on board: 105 passengers (including 5 children and 1 baby), 2 pilots, 5 flight attendants and 1 engineer. The airplane took off from Zvartnots airport at 20:47. Takeoff, climb and cruise were uneventful. The first communication between the Sochi approach controller and the crew took place at 21:10:20. At that moment the airplane was beyond the coverage area of Sochi aerodrome radar. Up until 21:17 the approach controller and the crew discussed the observed and forecast weather, and as a result the crew decided to return to Yerevan. At 21:26:37, after the decision had already been made, the crew asked the controller about the latest observed weather. At 21:30:49 the controller informed the crew that visibility was 3,600 m and the cloud ceiling 170 m. At 21.31.14 the crew decided to continue the flight to Sochi airport. The next communication with the approach controller was at 22:00:45. At that moment the airplane was descending to an altitude of 3,600 m heading to GUKIN point and was being tracked by the Sochi radar. The approach controller cleared the airplane for descent to 1,800 m and reported the observed weather at Sochi, as at 22:00, for runway 06, which was above the aerodrome minimum. Then the crew was handed over to the holding and tower controllers, and was cleared for descent to 600 m, as per aerodrome pressure QNH 1016 hPa, before entering the turn to final. While performing the turn to final, the runway extended centreline was overshot. Having eliminated the deviation, the airplane started descending along the glide slope, following the approach pattern. At 22:10:45 the crew reported extension of the landing gear and their readiness for landing. In response they were advised of the distance of 10 km and weather 4000 x 190, and were cleared for landing. However, about 30 seconds later, the controller advised the crew of the observed cloud ceiling at 100 m and instructed them to stop their descent and carry out a right turn and climb up to 600 m and also to get in touch with the holding controller. The last communication with the crew was at 22:12:35. After that the crew did not respond to any of the controller’s calls. At 22:13:03 the airplane struck the water, was destroyed and sank.
Probable cause:
The fatal crash of the Armavia A320 EK-32009 was a CFIT accident that happened due to collision with the water while carrying-out a climbing manoeuvre after an aborted approach to Sochi airport at night with weather conditions below the established minima for runway 06. While performing the climb with the autopilot disengaged, the Captain, being in a psychoemotional stress condition, made nose down control inputs due to the loss of pitch and roll awareness. This started the abnormal situation. Subsequently the Captain's inputs in the pitch channel were insufficient to prevent development of the abnormal situation into the catastrophic one. Along with the inadequate control inputs of the Captain, the contributing factors to development of the abnormal situation into the catastrophic one were also the lack of necessary monitoring of the aircraft descent parameters (pitch attitude, altitude, vertical speed) by the co-pilot and the absence of proper reaction by the crew to the EGPWS warning.
Final Report:

Crash of an Antonov AN-8 in Yerevan

Date & Time: Dec 13, 1993 at 0004 LT
Type of aircraft:
Operator:
Registration:
RA-13323
Flight Type:
Survivors:
Yes
MSN:
0E3430
YOM:
1955
Country:
Region:
Crew on board:
5
Crew fatalities:
Pax on board:
3
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
14212
Aircraft flight cycles:
6676
Circumstances:
The crew was completing a night cargo flight to Yerevan. On final approach to Zvartnots Airport, at a speed of 180-190 km/h, the aircraft became unstable, lost height and struck the ground about 150 metres short of runway threshold with a positive acceleration of 4 g and crashed. All eight occupants escaped with minor injuries and the aircraft was damaged beyond repair.
Probable cause:
The accident was the consequence of the combination of the following factors:
- Poor approach planning,
- The crew failed to follow the approach pattern,
- Lack of captain's experience,
- The aircraft was unstable on approach,
- No corrective action on part of the crew,
- The crew positioned the throttle below flight idle, causing negative thrust and a loss of ground speed and altitude,
- Shortcomings in crew interactions expressed in the absence of control by the copilot about the throttle position during the late stage of flight,
- Failure of the crew to initiate a go-around procedure.

Crash of a Tupolev TU-154B in Yerevan

Date & Time: Dec 5, 1992
Type of aircraft:
Operator:
Registration:
CCCP-85105
Survivors:
Yes
MSN:
75A105
YOM:
1975
Country:
Region:
Crew on board:
8
Crew fatalities:
Pax on board:
146
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The approach and landing to Yerevan-Zvartnots Airport was completed in poor weather conditions. Upon landing, the aircraft was not properly aligned with the centerline and landed too far to the right of the runway. Out of control, it veered off runway and eventually collided with a concrete wall. All 154 occupants evacuated safely while the aircraft was damaged beyond repair.
Probable cause:
It was determined that the aircraft was not properly aligned with the runway centerline upon landing after the crew mistook the runway edge lights with the runway centerline lights.

Crash of an Antonov AN-22A in Tver: 33 killed

Date & Time: Nov 11, 1992
Type of aircraft:
Operator:
Registration:
CCCP-09303
Flight Phase:
Flight Type:
Survivors:
No
Schedule:
Tver - Yerevan
MSN:
053483299
YOM:
1975
Country:
Region:
Crew on board:
6
Crew fatalities:
Pax on board:
27
Pax fatalities:
Other fatalities:
Total fatalities:
33
Circumstances:
After takeoff from Tver-Migalovo AFB, while climbing to a height of about 250 metres, the aircraft pitched up and down then stalled and crashed. All 33 occupants were killed.
Probable cause:
It was determined that the aircraft was overloaded by 20 tons at the time of the accident and that the CofG was too far aft.

Crash of a Yakovlev Yak-40 in Sisian

Date & Time: May 9, 1992
Type of aircraft:
Operator:
Registration:
CCCP-87532
Survivors:
Yes
Schedule:
Stepanakert – Erevan
MSN:
9 52 16 41
YOM:
1975
Location:
Country:
Region:
Crew on board:
3
Crew fatalities:
Pax on board:
30
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
The aircraft departed Stepanakert on a charter flight to Yerevan, carrying 30 refugees and three crew members. While in cruising altitude over the Kalbajar district in south Armenia, the aircraft was attacked by the pilot of an Azerbaijani Sukhoi Su-25. Two engines failed and smoke spread in the cabin. The crew initiated an emergency descent and divert to Sisian Airport. The aircraft landed on its belly, slid for few hundred metres then veered off runway and came to rest in flames. All 33 occupants evacuated safely, except both pilots who were slightly injured. The aircraft was destroyed by fire.
Probable cause:
Attacked in flight by the pilot of an Azerbaijani Sukhoi Su-25.

Crash of an Antonov AN-12B in Yerevan: 7 killed

Date & Time: Dec 12, 1988 at 0223 LT
Type of aircraft:
Operator:
Registration:
YU-AID
Flight Type:
Survivors:
No
Schedule:
Belgrade - Yerevan
MSN:
01 348 010
YOM:
1971
Country:
Region:
Crew on board:
7
Crew fatalities:
Pax on board:
0
Pax fatalities:
Other fatalities:
Total fatalities:
7
Aircraft flight hours:
8388
Aircraft flight cycles:
4727
Circumstances:
The aircraft was approaching Yerevan to drop first aid, medics and various goods for the victims of the recent earthquake. On short final by night, the aircraft was too low and crashed few hundred meters short of runway. The aircraft was destroyed and all seven crew members were killed.
Probable cause:
It is believed that the aircraft was approaching Yerevan at an insufficient altitude following wrong information transmitted to the crew by ATC.

Crash of a Tupolev TU-154B-2 in Aleppo

Date & Time: Sep 24, 1988 at 1426 LT
Type of aircraft:
Operator:
Registration:
CCCP-85479
Survivors:
Yes
Schedule:
Yerevan - Aleppo
MSN:
81A479
YOM:
1981
Country:
Region:
Crew on board:
10
Crew fatalities:
Pax on board:
158
Pax fatalities:
Other fatalities:
Total fatalities:
0
Circumstances:
Following an uneventful flight from Yerevan, the crew initiated the approach to Aleppo in moderate turbulences. On final, the aircraft was unstable and out of trim when it adopted an excessive rate of descent of 5,5 meters per second and struck the runway surface. On impact, the undercarriage were torn off. The aircraft slid on its belly, overran and came to rest, broken in two. At least 60 occupants were injured.
Probable cause:
Wrong approach configuration on part of the crew who continued a visual approach in moderate turbulences with an unstable aircraft. The crew manually set the aircraft out of trim, causing the center of gravity to be aft the permissible limit.