What was found
DURING MLG GVI INSPECTION, MX FOUND NR 4 PIN, AND NR 6 WASHER, WERE NOT INSTALLED THROUGH AFT NR 3 LINK, UNDER NR 2 SPRING, IN LT UP-LOCK ASSEMBLY. LINK WAS LOOSE IN THE ASSY AND ALL UP-LOCK MOVEMENT WAS PROVIDED THROUGH THE FWD LINK. THE FWD LINK WAS BENT DUE TO THE ADDED TENSION AND MISALIGNMENT. UPON REVIEW OF THE AIRFRAME LOGBOOKS THERE IS NO INDICATION THAT THIS ASSY HAD BEEN DISASSEMBLED IN THE FIELD AND THERE WAS "WHITE" INSPECTION TORQUE STRIP ON ASSOCIATED HARDWARE. IT IS PERSUMED THAT THIS WAS INSTALLED INCORRECTLY AT THE FACTORY. EMERGANCY GEAR RELEASE APPEARS TO HAVE WORKED CORRETLY IF THERE WAS A TOTAL FAILURE OF THE LONE LINK AND/OR PIN.