As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAILPLANE ACTUATOR EXCEEDED SCREW CASING END PLAY LIMIT OF 0.25 MM AS LISTED IN MM. DISASSEMBLED UNIT AND FOUND PRESENCE OF WATER CONTAMINATION AND INTERNAL BALL BEARINGS RUSTED. DATE DISCOVERED 17 AUG 2005. UNIT SHOULD BE CHECKED INTERNALLY FOR CONDITION OF BALL BEARINGS AND PROPER LUBRICATION. AT PRESENT, MFG MM PROVIDE NO SCHECULED INTERVALS TO MONITOR BEARING CONDITIONS. (K)