What was found
DURING A SCHEDULED INSPECTION OF THE HORIZONTAL STABILIZER SIDE ROLLER BRACKET ASSY AND AREA, IT WAS DISCOVERED THAT THE SUPPORTING BRACKETS BEHIND THE RIB AS WELL AS THE RIB ON THE LT AND RT SIDE ROLLER BRACKET WERE CRACKED. THE INSPECTION WAS ACCOMPLISHED USING A BORESCOPE AND INSERTING THROUGH THE DRAIN HOLE NEAR THE SIDE ROLLER SUPPORT BRACKETS, THE FOLLOWING PARTS WERE CHANGED: 1) 45A21146-6, 2) 45A21146-5, RIBS: 3) 45A2186-3, 4) 45A21086-4, 5) 45A21085-3, 6) 45A21085-4.