As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG VIB MONITOR R RIGHT ENGINE AIRBORNE VIBRATION MONITORING (AVM) SYSTEM IS INOPERATIVE, OR LOSS OF TACHOMETER DATA. STATUS MSG01- NOT ACTIVE DESCENT INTERMITTENT; 'E' FLANGE ACCELEROMETER (CIRCUIT 1 RIGHT) SIGNAL IS OUT OF RANGE. DB- SIGNAL CONDITIONER UNIT (RIGHT) MSG02- NOT ACTIVE DESCENT INTERMITTENT; 'E' FLANGE ACCELEROMETER (CIRCUIT 1 RIGHT) SIGNAL IS OUT OF RANGE. REPLACED NR 2 ENGINE.