GLEX, Liverpool UK, 2019

GLEX, Liverpool UK, 2019

Summary

On 11 December 2019, a Bombardier BD700 Global 6000 making a night landing at Liverpool suffered a nose wheel steering failure shortly after touchdown. The crew were unable to prevent the aircraft departing the side of the runway into a grassed area where it stopped, undamaged, in mud. The Investigation found that the crew response was contrary to that needed for continued directional control but also that no pilot training or QRH procedure covered such a failure occurring at high speed nor was adequate guidance available on mitigating the risk of inadvertent opposite brake application during significant rudder deflection.

Description

On 11 December 2019, a Bombardier BD700 Global 6000 (9H-VJM) being operated by VistaJet on a non-scheduled international passenger flight from Bedford MA to Liverpool during which line training was being carried out departed the side of the runway during its landing roll after completing a normal ILS approach conducted in night VMC. Neither ground fixtures nor the aircraft were damaged and there were no occupant injuries.

The aircraft in its final stopping position. [Reproduced from the Official Report]

Investigation

A Field Investigation was carried by the UK AAIB. The CVR and FDR were removed from the aircraft and their data successfully downloaded. The aircraft operator also provided QAR which was the same as that recorded by the FDR. The Nose Wheel Steering (NWS) Steering Control Unit (SCU) was also removed from the aircraft and its data downloaded for analysis.

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