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Gazpromavia Flight 9608

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Gazpromavia Flight 9608
RA-89049, the aircraft involved in the accident
Accident
Date12 July 2024 (2024-07-12)
SummaryCrashed during a ferry flight, under investigation
SiteNear Tretyakovo Airport, Kolomna, Ozyory, Moscow Oblast, Russia
Aircraft
Aircraft typeSukhoi Superjet 100-95LR
OperatorGazpromavia
IATA flight No.4G9608
ICAO flight No.GZP9608
Call signGAZPROM 9608
RegistrationRA-89049
Flight originTretyakovo Airport
DestinationVnukovo International Airport
Occupants3
Crew3
Fatalities3
Survivors0

On 12 July 2024, a Sukhoi Superjet 100 operated by Gazpromavia as Gazpromavia Flight 9608 crashed during a ferry flight from Tretyakovo Airport to Vnukovo International Airport. All three crew members were killed.[1]

Accident

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The aircraft was operating a ferry and test flight from the Lukhovitsy Aviation Plant after some maintenance.[2] Four minutes after take off the aircraft made its last contact with the air traffic controller, and reached its maximum altitude of about 900 metres (2,953 ft).[3]

The aircraft crashed seven minutes after take off, about 80 kilometres (50 miles) south-east of its destination airport, near the city of Kolomna, in a wooded area killing all three crew members,[4][5][6] including two pilots and a flight engineer, all of whom were employees of Sukhoi.[2] According to Novaya Gazeta, the aircraft sent a distress signal and circled to burn fuel preparing to perform an emergency landing, before crashing.[7]

According to sources cited by Izvestia, the probable cause of the crash were malfunctioning angle of attack sensors installed during maintenance.[8] This was the fifth hull loss and third fatal accident of the Superjet since its introduction in 2011.[9]

Aircraft

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The aircraft involved was a Sukhoi Superjet 100-95LR, MSN 95078, and registered as RA-89049. The aircraft was manufactured in 2014 and the flight consisted of three crew members, composed by Captain Evgeniy Bulavko, First officer Vladislav Kharlamov, and Flight engineer Maxim Lukmanov.[3][7][10][11]

Investigation

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The investigation is being carried out by the Interstate Aviation Committee.[12] On the evening of 12 July, both flight recorders were found.[13] On 30 August 2024, the Interstate Aviation Committee released the preliminary report on the accident. The Ministry of Transport said that the aircraft did not have permission to fly.[14]

According to the preliminary report, the aircraft was flying at 5,000 feet (1,524 m) with a nose pitch angle between 5 and 6 degrees, the Air Data Computer 1 indicated an angle of attack between 10 and 11.5 degrees, while the second computer indicated an angle of attack between 11 and 13.5 degrees; the aircraft was cruising at a speed of 230 knots (426 km/h; 265 mph; 118 m/s). The crew received the clearance to climb at 15,000 feet (4,572 m) (FL 150), but the aircraft initially seemed to climb, but then it started to descend. To correct it, the first officer tried to pull the nose of the aircraft up to nearly 14 degrees, causing the autopilot to disconnect. Then the captain took control of the aircraft and accelerated to 270 knots (500 km/h; 311 mph; 139 m/s), arresting the descent. At 4,500 feet (1,372 m), as the aircraft starting to ascend again, the crew turned off the autothrottle and, as a consequence, the aircraft's airspeed reached 308 knots (570 km/h; 354 mph; 158 m/s), activating the overspeed warning. The crew then reported the unreliable airspeed to the ATC. Due to the excessive airspeed, the aircraft initiated a nose-up manoeuvre and activated the speed brakes to slow the airframe down. The ascent was arrested at around 4,800 feet (1,463 m), but then the elevator automatically lowered the nose down to prevent an excessive angle of attack (AOA), so the aircraft started to descend again. At 3,000 feet (914 m), the crew attempted to arrest the descend, but the elevators did not respond and the aircraft impacted with terrain with a velocity of 365 knots (676 km/h; 420 mph; 188 m/s).[15][16][17]

See also

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References

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  1. ^ Hradecky, Simon. "Crash: Gazpromavia SU95 near Moscow on Jul 12th 2024, lost height coming out of maintenance". The Aviation Herald. Retrieved 12 July 2024.
  2. ^ a b "Russian Superjet Airliner Crashes, Killing 3 Pilots – Reports". The Moscow Times. Retrieved 12 July 2024.
  3. ^ a b "В Росавиации заявили о найденных черных ящиках разбившегося самолета SSJ-100" [The Federal Air Transport Agency announced the found black boxes of the crashed SSJ-100 aircraft]. Forbes.ru (in Russian). 12 July 2024. Retrieved 16 July 2024.
  4. ^ "Russian passenger jet crashes flying empty near Moscow, killing its crew of 3". AP News. 12 July 2024. Retrieved 12 July 2024.
  5. ^ "Three believed dead after passenger plane crashes near Moscow". Reuters. 12 July 2024. Retrieved 12 July 2024.
  6. ^ Lukiv, Jaroslav (12 July 2024). "Russia passenger jet crashes near Moscow during test flight". BBC News. Archived from the original on 12 July 2024. Retrieved 12 July 2024.
  7. ^ a b "Three dead as passenger plane crashes outside Moscow during test flight". Novaya Gazeta Europe. 12 July 2024. Retrieved 12 July 2024.
  8. ^ Evsina, Anastasia (16 July 2024). "«Известия»: крушение «Суперджета» в Подмосковье могло произойти из-за ошибки на ТО" [Izvestia: the crash of the Superjet in the Moscow region could have occurred due to a maintenance error]. The main news in Russia and the world - RTVI (in Russian). Retrieved 16 July 2024.
  9. ^ Noëth, Bart (12 July 2024). "Sukhoi SuperJet 100 crashes near Moscow during test flight after repairs". Aviation24.be. Retrieved 15 July 2024.
  10. ^ "RRJ-95LR-100 RA-89049 12.07.2024". mak-iac.org. Interstate Aviation Committee. Retrieved 12 July 2024.
  11. ^ "Accident Sukhoi Superjet 100-95LR RA-89049, Friday 12 July 2024". asn.flightsafety.org. Retrieved 13 July 2024.
  12. ^ "Источник: силовики пришли на завод, где чинили упавший под Коломной самолет" [Source: security forces came to the plant where they were repairing the plane that crashed near Kolomna] (in Russian). RIA Novosti. 12 July 2024. Retrieved 12 July 2024.
  13. ^ Kasakova, Helen (13 July 2024). "На месте крушения самолета Sukhoi Superjet 100 под Коломной найдены черные ящики" [Black boxes found at the Sukhoi Superjet 100 crash site near Kolomna] (in Russian). Regions.ru. Retrieved 13 July 2024.
  14. ^ "Crash: Gazpromavia SU95 near Moscow on Jul 12th 2024, lost height coming out of maintenance". avherald.com. Retrieved 30 August 2024.
  15. ^ "Crash: Gazpromavia SU95 near Moscow on Jul 12th 2024, lost height coming out of maintenance". avherald.com. Retrieved 30 August 2024.
  16. ^ "Loss of control Accident Sukhoi Superjet 100-95LR RA-89049, Friday 12 July 2024". asn.flightsafety.org. Retrieved 30 August 2024.
  17. ^ "Предварительный отчет самолет RRJ-95LR-100 RA-89049" [Preliminary report aircraft RRJ-95LR-100 RA-89049] (PDF) (in Russian). Interstate Aviation Committee. 30 August 2024. Retrieved 30 August 2024.
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