As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REMOVAL OF HORIZONTAL STABILATOR TRIM TAB HINGES FOR REPLACEMENT, FOUND BOTH TRIM TABS CRACKED UNDER CONTROL HORN ATTACHMENT. CRACKS NOT VISIBLE WITH TABS ATTACHED. SUBMITTER SUGGEST REMOVAL OF HORN AT ANNUAL INSPECTION FOR ROUTINE INSPECTION.