As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ECU WARNING LIGHT ILLUMINATED IN FLIGHT. ALONG WITH THE NR 1 ECU CAUTION LIGHT NR 1 ECU FAIL LIGHT ILLUMINATED. THE NR 1 ENGINE WENT INTO MANUAL MODE. NO LIMITS WERE EXCEEDED. AIRCRAFT IS CURRENTLY IN MAINTENANCE TO TROUBLESHOOT PROBLEM. THE AC LANDED.