What was found
DURING ROUTINE C-CHECK INSPECTION, CORROSION WAS DETECTED ON THE AFT LOWER FUSELAGE FORWARD OF ACCESS PANEL NUMBER 60, STATION 1557 TO 1574, LONGERON 35 RT. REPAIR ACCOMPLISHED, REMOVAL OF THE DAMAGED AREA, FABRICATION AND INSTALLATION OF A INTERNAL FILLER AND REPAIR DOUBLER IN ACCORDANCE WITH THE DOUGLAS STRUCTURAL REPAIR MANUAL.