As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, STATUS PAGE MESSAGE DISPLAYED FOR RT ENGINE EEC C1. FOLLOWED FIM 73-21/828. FOUND MESSAGE CH-B, CAT 1 FAULT ON RT PIMU FOLLOWED BY PIMU MESSAGE TABLE IAW FIM TASK 71-01-00/201 AND PERFORMED BITE/GROUND TEST OF PIMU THEN RESET, MESSAGE WENT OUT. RT ENGINE EEC SYS CHECKED OK IAW AMM 77-35-00.