As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT DURING FLIGHT THE RT ENG DEEC LIGHT CAME ON AT 86% N1. THE CREW INDICATED THAT THE ENG DIVERTED TO MANUAL MODE. TROUBLE SHOT THE DISCREPANCY & FOUND THAT THE ENG SYNC CONTROLLER WAS DEFECTIVE. THE UNIT WAS R & R WITH AN EXCHANGE UNIT PN 2118114-1-2 IAW AMM 73-22-11-401 & 71-00-00-501. OPERATIONS CHECKED SATISFACTORY.