Thanks so far...
Thank you so far, guys,
I especially appreciated the answer of mr. "lomapaseo" because it gives some kind of operational testing of the engine after the restart.
Other than that, I believe that there are some cases which could be potentially hazardous if restart is attempted. I heard the story of a ruptured fuel line somewhere in the engine or FCU which leaked enough at high power settings to create a flame-out due to fuel starvation. At lower thrust settings, there may be enough fuel to keep the engine running without noticing this leak.
1-Do you think this is a possibility and if yes could you think of similar cases ?
2-Would the fact that you were or were not able to determine the cause of the failure be a factor when considering restart if all engine parameters are acceptable(N1,N2,Oil Qty) ?