Safety Board : quick fix for Boeing 777 engine failure . Rolls - Royce engine blamed for two incidents last year . NTSB : ` ` High probability '' of similar recurrence . Some 56 U.S. aircraft accidents ; reported worldwide .
Safety Board urges quick fix for Boeing 777 engine problem . Rolls-Royce engine blamed for two incidents last year . NTSB : `` High probability '' of similar recurrence . Some 56 U.S. aircraft involved ; 228 worldwide .