What was found
4C INSPECTION, CENTER WING AUX TANK UPPER SKIN PANEL HAS CORROSION AT STRINGER 15 STA 1225-1231, X=-47.50 TO X=-75.25. ACCOMPLISHED REPAIR ON CENTER WING UPPER SKIN PANEL AT STRINGER 15 STA 1225-1231, X=-47.50 TO X=-75.25 IAW EA 011-5730-A5396, REV I/R AND 5730-54565-A.