As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PERFORMED TASK CAR 78273000, #2 ENGINE HAD LONG TIME FAULT - 73-31072 - "THE FUEL FILTER SIGNALS DISAGREE". GROUNDED - YES. REFERENCE LOGPAGE 11803593, FUEL FILTER & DRAIN PLUG WERE REPLACED. LOG 11803589 THE FUEL DIFFERENTIAL PRESSURE SWITCH WAS REPLACED. A/C HAS FLOWN A MONTH WITH NO BYPASS FAULTS. NO CURRENT FAULTS IN #2 ENGINE HISTORY.