History of the Flight
On 30 August 2018, Atlas Air flight GTI 8086, a Boeing 747-47UF registered as N415MC, operated from Al Maktoum International Airport, Dubai (OMDW) to Hong Kong International Airport (VHHH). Shortly after touchdown on Runway 25R, the aircraft veered to the right and then to the left of the runway centreline. About five seconds later, it reversed abruptly towards the centreline.
Damage
As the aircraft veered right, it rolled such that the bottom of the No.3 and No.4 engine nacelles made contact with the runway. The lower section of the engine nacelles and the No.4 engine were damaged. No engine fire or abnormal indications on engine instruments were observed. The aircraft taxied to a cargo parking stand.
Investigation Findings
The investigation identified that the damage to the underside of the inlet cowl, fan cowl, and reverser translating cowl of the No.3 and No.4 engines was due to the combined effects of a sharp right yaw and a significant right roll. These movements corresponded to exaggerated inputs to the flight controls made by the pilot flying. The investigation resulted in one safety recommendation.
Probable Cause
The damage to the engine nacelles was due to the combined effects of a sharp right yaw and significant right roll corresponding to the exaggerated inputs to the flight controls made by the pilot flying.