Saratov Airlines Flight 703

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Saratov Airlines Flight 703
RA-61704 A148 (100V) Saratov Airlines DME UUDD (34546882305) .jpg

The accident machine in May 2017
Accident summary
Accident type Loss of control
place Near Stepanovskoye ,
Ramensky rajon , Russia
RussiaRussia 
date February 11, 2018
Fatalities 71
Survivors 0
Aircraft
Aircraft type Antonov An-148 -100W
operator RussiaRussia Saratov Airlines
Mark RA-61704
Departure airport Moscow Domodedovo , Russia
RussiaRussia 
Destination airport Orsk , RussiaRussiaRussia 
Passengers 65
crew 6th
Lists of aviation accidents
Route of Saratov Airlines flight 703

On the Saratov Airlines flight 703 ( Flight number : 6W703) crashed on Feb. 11, 2018 seven minutes after departure from Moscow Domodedovo to Orsk an aircraft of type Antonov An-148 -100W near the village Stepanowskoje ( Rajon Ramenski) in the Moscow Oblast from. There were 71 people on board: 65 passengers and six crew members. There were no survivors.

Flight history

The aircraft took off from Domodedovo Airport at 2:21 p.m. local time (11:21 a.m. UTC ). At around 2:27 p.m. local time, communication was lost, there was no emergency call from the crew and the aircraft disappeared from the radar. The plane hit intact and not burning. This was determined by the intergovernmental aviation committee MAK based on the rubble found.

Salvage

Aerial view of the crash site

The rescue workers were at the crash site around 4 p.m. local time, about one kilometer west of the village of Stepanovskoye. The debris of the An-148 was spread over a large area, "like an explosion in the air". Both flight recorders could be recovered.

Accident investigation

The MAK announced on 13 February 2018 after the first evaluation of the flight data recorder known that the heating of the three pitot tubes (pitot tubes) was switched off and this for icing led one or more probes. The airspeed is recorded by the pitot tubes. A clogging of the probes leads to incorrect information, because the dynamic pressure does not apply, but the air trapped in the tube expands with increasing flight altitude due to the decreasing static pressure . The incorrect values ​​are forwarded to the instruments in the cockpit. At first it was wrongly assumed that the machine had abruptly changed its speed and altitude several times before the crash.

As a result of the icing, there was an increasing discrepancy in the two active cockpit instruments in which the speed was displayed during the climb. A third display device was switched off. Two and a half minutes after take-off, the machine flew through an altitude of 1,300 meters, with an alarm signal sounding that informed the pilots of the different values. At this point in time, the displayed speed difference in the two instruments was about 15 knots , at an airspeed of 250 KIAS ( knots indicated airspeed ). In the further climb, the displayed speed at the captain's seat (device 1) decreased continuously, while it increased continuously at the co-pilot's seat (device 3) until it reached a maximum value of almost 300 KIAS at an altitude of around 2000 meters. The crew then deactivated the autopilot and steered the aircraft manually. In contrast to the representation at the co-pilot's position (device 3), the true flight speed of the machine then decreased continuously. The speed displayed at the captain's seat (device 1) had a value of 0 KIAS 50 seconds after the autopilot was switched off. At the same time, the value in the second display device suddenly dropped to 108 KIAS. At this point, forces of up to 1.5 g were acting on the aircraft. Immediately afterwards, the aircraft's nose sagged , causing the machine to rapidly lose altitude with a negative pitch of 30 degrees, which was maintained until impact.

At the end of June 2018, the MAK published the official accident investigation report. The cause was therefore the icing of the pitot tube due to the heater not being switched on.

Passengers

Of the people on board, 69 were Russian citizens , as well as one Azerbaijani and one Swiss citizen.

nationality number
RussiaRussia Russia 69
AzerbaijanAzerbaijan Azerbaijan 01
SwitzerlandSwitzerland Switzerland 01
total 71

Consequences

The airline changed its brand name to Ivolga Airlines (named after the Russian word for oriole ) in April 2018 , but the company's name remained Saratov Airlines. On May 30, 2018, a flight ban was issued for Saratov Airlines. In the course of the investigation, 64 pilots who had completed their training as the co-pilot of Flight 703 in Chelyabinsk were revoked due to missing certificates from the training center.

Similar events

Web links

Commons : Saratov Airlines Flight 703  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b Antonov accident near Moscow: Icy sensors caused the plane to crash. In: n-tv.de. Retrieved June 27, 2018 .
  2. ↑ SPIEGEL ONLINE: Russian plane crashed near Moscow - SPIEGEL ONLINE. February 11, 2018, accessed February 11, 2018 .
  3. ↑ Deutsche Welle (www.dw.com): 71 dead in plane crash near Moscow. February 11, 2018, accessed February 13, 2018 .
  4. ↑ 71 people on board: plane apparently crashed near Moscow. In: Sputnik Germany . de.sputniknews.com, February 11, 2018, accessed February 11, 2018 .
  5. ↑ a b BREAKING Antonov An-148 with 71 people onboard missing after taking off from Moscow. In: airlive.net. February 11, 2018, accessed February 12, 2018 .
  6. ↑ RA-61704 - Antonov An-148 - Saratov Airlines. In: flightradar24.com. Retrieved February 12, 2018 .
  7. ↑ Crashed An-148 was intact during descent: investigators. In: flightglobal.com. February 13, 2018, accessed February 13, 2018 . }
  8. ↑ Sebastian Shukla, Alla Eshchenko, Holly Yan: Russian plane crash kills all 71 people on board. In: edition.cnn.com. February 12, 2018, accessed February 12, 2018 .
  9. ↑ a b Crash: Saratov A148 at Moscow on Feb 11th 2018, lost height after departure, pitot heatings off. In: The Aviation Herald . February 13, 2018, accessed February 13, 2018 .
  10. ↑ Plane crash near Moscow: Investigators name the alleged cause. de.sputniknews.com, accessed February 13, 2018 .
  11. ↑ Flight International, February 20, 2018 (English), first accident report, p. 7.
  12. ^ Accident report AN-148 RA-61704 , Aviation Safety Network (English), accessed on August 26, 2018.
  13. ↑ Who were the victims of the Russia crash? . February 12, 2018.
  14. ↑ Stefan Eiselin: Saratov renames himself. aerotelegraph.com from April 13, 2018
  15. ↑ Saratov Airlines is no longer allowed to fly. AeroTelegraph, May 31, 2018.
  16. ↑ Pilots crash with diplomas , Kommersant, June 7, 2019

Coordinates: 55 ° 17 '59.42 "  N , 38 ° 23' 20.94"  E