As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW RECEIVED A LEFT FADEC AMBER CAUTION MESSAGE AFTER DEPARTURE FROM BGR, QRH INSTRUCTED THEM TO LAND AT NEAREST SUITABLE AIRPORT. AFTER CONSULTING DISPATCH CREW DECIDED TO DIVERT TO PWM. CREW DECLARED EMERGENCY, POWERED LEFT ENGING DOWN TO IDLE. AIRCRAFT LANDED SAFELY, ALL PASSENGERS ARE IN TERMINAL. MAINTENANCE IS EN ROUTE. AIRCRAFT WAS NOT NOT OVERWEIGHT UPON LANDING. / L FADEC AMBER CAUTION MESSAGE IN FLIGHT"