On 20 February 2021, a Boeing 747-400BCF engine catastrophically failed as it passed 800 feet agl after takeoff from Maastricht and an uneventful diversion to Liege followed. It was subsequently found that debris ejected from the failed engine had resulted in injury to persons and property damage on the ground. Engine failure was attributed to a previous operator of the aircraft’s failure to incorporate an optional Service Bulletin during routine maintenance and the absence of a review of this decision by the current operator. The absence of any risk assessment for third parties below a regular flight path was noted.