Brake-pedal movement recorded before Vietnam 787-9’s laboured take-off and overrun

A Vietnam Airlines Boeing 787-9 experienced a tail strike during a laboured take-off roll at Munich Airport, resulting in an overrun following rotation below V1. German investigators have revealed evidence indicating brake pedal input was registered by the flight crew prior to this event. The aircraft's initial calculated V1 speed was 169 knots. This incident occurred while the aircraft was rotating from the grass surface after a failed takeoff. Authorities are currently investigating the circumstances surrounding the accident and its contributing factors.