As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: RIGHT THRUST REVERSER APPEARED ON ENGINE INDICATING AND CREW ALERTING SYSTEM 3 TIMES IN THE AIR, TWICE ON THE GROUND. DIVERTED TO TUL. FOUND FAULTS TO BE CORRELATED WITH ELECTRONIC ENGINE CONTROL C1 R INDICATION ON STATUS MESSAGES. INSTALLED SERVICEABLE ELECTRONIC ENGINE CONTROL ON RIGHT HAND (NUMBER 2) ENGINE AND PERFORMED INSTALLATION TESTS IN ACCORDANCE WITH AMM 73-21-15.