As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, DURING CRUISE AT FL350 RUDDER TRIM FAILED TO TRIM RT W/FULL TURN KNOB APPLICATION ON SUBSEQUENT ATTEMPTS TRIM MOVED INTERMITTENTLY. NOTE: 2 UNITS RT RUDDER TRIM TO OBTAIN .5 UNITS AILERON TRIM TO RT OF CENTER. TROUBLESHOT PER FIM 27-21-00 FIG 106 TO BLOCK 5. RUDDER TRIM OPS CK GOOD.