On 8 February 2005 an Airbus A340-600 was 11 hours into its flight from Hong Kong to London Heathrow when the No 1 and No 4 engines ran down in quick succession. A fuel management problem rather than a fuel shortage was then diagnosed but a manual transfer was only partially successful and a diversion to Amsterdam was made on three engines. The Investigation found that the master Fuel Control and Monitoring Computer had failed, that timely warnings of automated fuel control system malfunctions were not provided and that alternate low fuel level warnings were inhibited by inappropriate system design.