In 2008, the flight from Beijing to London was forced to make an emergency landing at Heathrow Airport in London. Luckily, all on board survived. However, the passengers were traumatized and some injured from the accident. Upon final approach to Heathrow, ice crystals in the fuel clogged the fuel-oil heat exchanger of the engine. The malfunction prevented the engine from getting the fuel that it needed to land. Rolls-Royce made the engine fuel-oil heat exchanger on that particular Boeing 777-200ER. As a result of the crash and litigation, Rolls-Royce made a modification and the European Aviation Safety Agency mandated that all affected engines be outfitted with the modification by January 1, 2011.