There's been a little update on the British Airways crash that happened earlier this year in 1/08 London.  Just to recap on that accident, it involved a B-777. This is quite a big airplane. But most important, there were no fatalities. The airplane crashed about a mile short of the runway when it lost engine power on both engines. This was highly unusual to lose power on both engines. The ntsb helped in the investigation, & even though its still preliminary what we do know is that the fuel lines suffered ice crystals in the fuel tank. With ice in the fuel tanks it starved the engines of fuel. Normally there is a system on most jets that allow pilots to heat the fuel tank in flight to keep it from building ice. Most airplanes have this feature as an automatic function. Boeing aircraft maker devised a number of operational changes to prevent ice build ups in the B-777 fuel lines which uses Rolls-Royce engines.