As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AILERON TRIM WILL NOT MOVE LEFT OR RIGHT IN CRUISE. WORKED IN CLIMB BUT JAMMED IN CRUISE WITH A/P OFF AND ON. FOUND LT AILERON TRAILING EDGE TRIM TAB ROD COVER FAIRING (UPPER PORTION) MISSING. REPLACED COVER. OPERATION NOW CHECKS NORMAL.