What was found
UPON INSP OF CONTROL COLUMNS AND EQUIP, FOUND THE ONLY 4 RIVETS (MS20470AD5) SECURING PILOTS CONTROL COLLAR TO THE YOKE WORKING IN SHEAR CAUSING SLOPPY FEEL IN THE YOKE. SUBMITTER STATED IF RIVETS WERE TO SHEAR, COMPLETE LOSS OF PITCH AND ROLL CONTROL WOULD HAVE OCCURRED. COLUMN AND YOKE REMOVED AND NEW RIVETS THE NEXT DIAMETER UP (MS20470AD6-6) INSTALLED AS A REPAIR UNDER A.C. 43.13 1B, SECT 4-57 PARA 4(B). ACFT MFG NOTIFIED AND IT WAS SUGGESTED TO INSTALL ADDITIONAL RIVETS IN THIS COLLAR FOR FUTURE REPAIRS. THE CONTROL WHEEL COLLAR IS ATTACHED AT OPPOSITE END WITH 8 RIVETS (MS-20470AD5). SUBMITTER SUGGESTED AD BE MADE TO ADDRESS THIS ISSUE, ALL BEECH BONANZAS, BARONS WITH DUAL CONTROL COLUM INSTALLS.