As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RUDDER TRIM FAILED TO TRIM IN EITHER DIRECTION. ACCMP'D TRIM TEST. TRIM INDICATION ERRATIC AT P8 PANEL, NORMAL ON EICAS DISPLAY. PULLED TRIM IND N83 AND NOTED INCREASE IN ERRATIC DISPLAY WITH LIGHT TAPPING ON CASE. REPLACED TRIM INDICATOR. RUDDER TRIM OPS AND INDICATION NORMAL.