today e B747's all 4 engines stopped working while in e sky..n whole body gt wired blue flame... luckily e aircraft nvr crash but nearly..almost.. in e end e reason is e B747 fly over a vocanno which just nice explode tat time.. ...so suey loh..=.= due to tat e ashe, engine stopped, e glass window  spoilt n ashe n smoke also blow into e cabin also cause lose communication...reall super suey...