Aer Lingus A330-200 EI-EWR operating EI140 Miami – Dublin (depart Miami 16th September) diverted to Gander in the early hours of this morning due to a medical emergency on board. The aircraft departed Gander after two hours on the ground but then diverted to Shannon early this afternoon due to crew running out of hours. After four hours at Shannon the aircraft positioned Shannon – Dublin as EI990.