What was found
DURING SCHEDULED C-11 CHECK, FOUND THE RT CENTER WING LOWER PLANKS HAD SURFACE CORROSION AROUND PIN RIVET HEADS AT BEHIND NR 3 ENGINE EXHAUST, ABOVE NACELLE; FS 576 TO FS 590, CWS 188R TO CWS 206R, WL 256. REPAIRED IAW LAC MEA 382-57-14-056, NR 2199.