IMHO you need a Maintrol dept manned with fluent english speaking engineers for the duration of your flying program. That way the ground engineers answer to any technical problem he/she doesn't understand is "call maintrol"
The contact details for your or your customers' maintrol department should be known to the crews.
Apart from the obvious fire, fuel spill, seized rotor, etc problems. There are too many variables to compile a list of responses. A mis-understanding could be VERY expensive. To avoid this there should be only one response "call maintrol"