As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THE THE NO2 ENGINE ELECTRONIC ENGINE COMPUTER UNIT WOULD REVERT TO MANUAL MODE. THE MAINTENANCE VENDOR DETERMINED THAT THE RIGHT ENGINE TORQUEMOTOR WAS DEFECTIVE. THE TORQUEMOTOR WAS REMOVED AND A NEW UNIT WAS INSTALLED. ENGINE OPERATIONAL CHECKS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.