As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MI@1040 ENROUTE TO MDSD, RETURNED TO KMIA DUE TO R ENG FUEL FILT. PER FIM 73-11 FT 803. REMOVED AND INSPECTED R ENG FUEL FILTER, NO CONTAMINANTS FOUND, REPLACED FILTER AND FUEL FILTER DIFF PRESS SWITCH. ENG RUNUP CHECK NO LEAKS NO EICAS MSGS. UNIT IS KNOWN TO TRAX.