On 30 March 2017, a Boeing 747-8F]] (LX-VCF) being operated by Cargolux on a scheduled cargo flight from Houston to Luxembourg via Prestwick as CV7754 was found to be Fuel - leaking significant quantities of aviation fuel from the lower fuselage as soon as it reached its allocated parking position at Prestwick in normal daylight visibility. The source of the fuel was found to be a helicopter on board as part of the main deck cargo. The Airport Rescue and Fire Fighting Services were called and contained the fuel spill and managed the associated risk of fire and explosion.