As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A PHASE INSPECTION A SQUEAK WAS NOTED DURING MOVEMENT OF FLIGHT CONTROL COLUMN. INVESTIGATION REVEALED. LOOSE RIVETS BETWEEN THE CONTROL T COLUMN AND BEARING PLATES AT THE POINT WHERE THE CONTROL COLUMN ATTACHES TO THE AIR FRAME AND PIVOTS. MFG ISSUED SB. AC WAS INSPECTED AT THAT TIME AND FOUND AIRWORTHY. THIS PROBLEM OCCURRED 12 HOURS AFTER COMPLETION OF SB. WOULD SUGGEST MFG THIS ITEM TO ALL PHASE INSP.