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Last updated: 26 November 2020
Statuts:Enquête Officielle
Date:mardi 26 février 2019
Heure:12:44
Type/Sous-type:Silhouette image of generic GALX model; specific model in this crash may look slightly different
Gulfstream G200 Galaxy
Compagnie:Silk Way Business Aviation
Immatriculation: 4K-AZ88
Numéro de série: 189
Année de Fabrication: 2008
Heures de vol:4174
Cycles:1787
Moteurs: 2 Pratt & Whitney Canada PW306A
Equipage:victimes: 0 / à bord: 3
Passagers:victimes: 0 / à bord: 3
Total:victimes: 0 / à bord: 6
Dégats de l'appareil: Substantiels
Lieu de l'accident:Moskva-Sheremetyevo Airport (SVO) (   Fédération de Russie)
Phase de vol: A l'atterrissage (LDG)
Nature:Affaires
Aéroport de départ:Baku-Heydar Aliyev International Airport (GYD/UBBB), Azerbaidjan
Aéroport de destination:Moskva-Sheremetyevo Airport (SVO/UUEE), Fédération de Russie
Numéro de vol:ESW88
Détails:
The Gulfstream G200 Galaxy plane slid off the side of runway 24C after landing at Moscow's Sheremetyevo International Airport, Russia. The aircraft slid sideways off the left side of the runway and became stuck in snow. The six occupants were not injured.
The aircraft operated on a flight from Baku, Azerbaijan. The en route and descent part of the flight were uneventful. The flight crew performed an ILS approach to runway 24C at Sheremetyevo Airport. The aircraft was cleared to land on runway 24C and wind was reported from 300° at 5 m/s (10 kts) with gusts to 10 m/s (20 kts). At a height of 80 meters, the captain switched off the autopilot and continued manually. The aircraft touched down at an airspeed of 150 knots, 250 m pas the runway threshold. Brakes were applied and the thrust reversers were deployed. During rollout the no.2 engine was brought back to idle and the thrust reverser stowed. The no.1 (left) engine remained at maximum reverse, causing the aircraft to swing to the left, off the side of the runway.

Probable Cause:


Conclusion:
The reason for the accident with the Gulfstream G200 4K-AZ88 was the stowing of the right-engine reverser by the pilot KVS from maximum thrust reversal while maintaining maximum thrust reversal on the left engine, which led to the appearance of a significant turning moment to the left.
The aircraft turning to the left in the presence of a cross wind to the right, as well as turbulence of the airflow near the rudder due to the open thrust reversal mechanism of the left engine and possible ice deposition on the outer surfaces of the aircraft, which led to the development of a significant swing moment on the rudder.
The development of a significant articulated moment on the rudder, in the absence of power steering in the rudder control system, led to its deviation to the leftmost position despite significant (up to 82 kg or 180 pounds) forces exerted by the crew on the pedals. The deviation of the rudder (pedals) to the left also led to the deviation of the nose wheel to the left.
The total moment from the running reverse of the left engine, from the right engine in direct draft mode, and from the rudder and nose wheel deflection to the left, led to the aircraft rolling out of the runway and its damage. Separate braking applied by the crew could not prevent the aircraft from rolling out.

The contributing factors could have been:
- the crew did not take into account the provisions of the AOM about the possible "destabilizing" effect of the thrust reverse when landing with a cross wind on the runway with a reduced braking coefficient;
- increased psycho-emotional tension of the crew members due to long dissatisfaction and emotional discussion of instructions and actions of ATC controllers. At the same time, the instructions and actions of the ATC service controllers were in line with established procedures.

Accident investigation:
cover
Investigating agency: MAK
Status: Investigation completed
Duration: 1 year and 3 months
Accident number: final report
Download report: Final report

Sources:
» MAK

METAR Weather report:
06:00 UTC / 09:00 local time:
UUEE 260600Z 31006MPS 9000 -SHSN SCT009 BKN020CB 01/00 Q1000 R24C/550336 R24L/550345 TEMPO 1000 SHSN

07:00 UTC / 10:00 local time:
UUEE 260700Z 32006MPS 9000 -SN OVC008 01/00 Q1000 R24C/550336 R24L/550345 NOSIG

08:00 UTC / 11:00 local time:
UUEE 260800Z 33006MPS 9999 OVC011 01/M00 Q1001 R24C/550336 R24L/550345 NOSIG

09:00 UTC / 12:00 local time:
UUEE 260900Z 33006MPS 5000 -SN SCT008 OVC023 01/M00 Q1001 R24L/550345 R24C/550336 NOSIG

10:00 UTC / 13:00 local time:
UUEE 261000Z 33005MPS 9999 OVC009 01/00 Q1002 R24L/550345 R24C/510345 NOSIG


Photos

photo of Gulfstream-G200-Galaxy-4K-AZ88
accident date: 26-02-2019
type: Gulfstream G200 Galaxy
registration: 4K-AZ88
photo of Gulfstream-G200-Galaxy-4K-AZ88
accident date: 26-02-2019
type: Gulfstream G200 Galaxy
registration: 4K-AZ88
photo of Gulfstream-G200-Galaxy-4K-AZ88
accident date: 26-02-2019
type: Gulfstream G200 Galaxy
registration: 4K-AZ88
photo of Gulfstream-G200-Galaxy-4K-AZ88
accident date: 26-02-2019
type: Gulfstream G200 Galaxy
registration: 4K-AZ88
 

Video, social media

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Baku-Heydar Aliyev International Airport et Moskva-Sheremetyevo Airport est de 1941 km (1213 miles).
Accident location: Exact; as reported in the official accident report.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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