What are the actual consequences of running JetA1 in an avgas engine? I would think that filling the tanks then realising you've got the wrong fuel is no big deal - just drain and refill with avgas.
But to actually run the engine, pick the machine up to the hover, cough and splutter, then decide to put it down cos something seems wrong, is surely much more serious.
Is the machine U/S until a LAME makes checks or changes to the engine? Does an incident report need to be submitted to CASA? Is it something that should be marked on the MR?
PJ.