What was found
(CAN) DURING EVENT 3 INSPECTIONS, AT THE AFT-SIDE LT FIREWALL, THE LT NACELLE BOTTOM INBD SKIN, IPC SEC VII POWER PLNT GRP ITEM 85-28, FOUND 2 RIVETS PULLED THROUGH. THESE RIVETS PASS THROUGH THE INBD L/E EDGE OF THE LT WING BOTTOM CENTER SKIN, PA31-350, IPC SEC I, WING GRP 5-26. ACCESS TO REPLACE THESE RIVETS REQUIRES THE INBRD FUEL TANK BLADDER. REMOVED AND THE LOWER INBD NACELLE FAIRING REMOVED. AMES THEN CHECKED AFT-SIDE RT FIREWALL SAME AREA AND RIVETS SHOWING THE BEGINNING SIGNS OF PULLING THROUGH, AS WELL.