What was found
INSPECTION 4C, CENTER WING TANK UPPER SKIN HAS CORROSION AT STA 1236 X=113, STA 1230 X=113 TO 115, STA 1230 X=35, STA 1230 X=8.5 STR 15, LT SIDE. ACCOMPLISHED REPAIR ON CENTER WING TANK UPPER SKIN PANEL STA 1236-1230 IAW STA EA 011-5730-01-A5187, REV I/R AND EO MD11-5730-53937-A.