What was found
DURING POST-CRASH EXAMINATION OF THE CONTROL SYSTEM, THE TYPICAL AILERON, ELEVATOR, AND RUDDER TRIM TAB ACTUATING RODS WERE FOUND INTERNALLY RUSTED AND CORRODED. THE TUBES HAVE ROD/FORKS ON EACH END AND APPEAR HOLLOW OR OPEN THROUGH THE FORKED END ALLOWING WATER TO ENTER THE TUBES. NO INTERIOR PROTECTION WAS FOUND.