What was found
(CAN) AT INSPECTION SOME COLLARS ON HIGH SHEAR RIVETS PN NAS1054-6-10 WHICH ATTACH THE STRUT SUPPORT ASSY TO THE WING SPAR WERE FOUND ABLE TO ROTATE. 4 ON LT WING AND 7 ON RT WING. THE RIVETS ARE HIGH SHEAR AND PRESSED FIT AND SHOWED NO SIGNS OF MOVEMENT. THERE IS A STEP IN THE RIVET WHICH THE COLLARS CRIMP INTO WHICH WOULD HAVE HELD THEM FROM EVER FALLING OFF. ENGINEERING WAS CONSULTED AND ISSUED AN ENGINEERING APPROVAL TO REPLACE THE RIVETS WITH BOLTS PN NAS464P3A11 AND NUTS PN MS21042L3. (TC 20100202008)