As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A MX PRE-FLIGHT INSPECTION, NOTICED RUST STAINING COMING FROM AFT ROD ENDS OF ELEVATOR TRIM TAB ROD ON BOTH LT & RT ELEVATOR TRIM TABS. FURTHER INSPECTION REVEALED THE GREASE SEAL ON ONE ROD END, HAD COME OFF & BALL BEARINGS WERE MOSTLY MISSING. OTHER ROD END STILL INTACT, RUST STAINING WAS ALSO OBSERVED COMING THROUGH GREASE SEALS. DURING REPLACEMENT OF ROD ENDS, NOTICED DE-ICING FLUID HAD PENETRATED INTO HOLLOW INNER PORTION OF TRIM TAB CONTROL ROD, NO EVIDENCE OF CORROSION EXISTED.