As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE PAINT STRIPPING THE CONTROL COLUMN A PIN HOLE APPEARED. REMOVING THE ALUMINUM PLUG, A LINE OF CORROSION WAS FOUND HALF WAY AROUND THE INSIDE OF THE COLUMN AT THE HEIGHT OF THE PLUG. CORROSION WAS THROUGH AT THE PIN HOLE AND GRADUALLY LESS TO THE SIDES. REPLACED.