A aircraft technicians and flight personnel are submitted to equal time pressure when they need to react to English language commands.
B both airline crews and maintenance personnel are subject to English language misunderstandings that can cause critical mishaps.
C aircraft maintenance personnel usually seem puzzled in discussions with native speakers about the need to use principles of Simplified English.
D it is widely known that several major accidents have been caused by linguistic misunderstandings during aircraft maintenance procedures.
E it is interesting to know that linguistic misunderstandings and incomprehension are also the cause of critical time constraints in maintenance operations.