What was found
DURING ROUTINE C CHECK INSPECTION, CORROSION WAS DETECTED ON FLOOR CUSP VERTICAL SUPPORT FITTING AT FUSELAGE STATION 960 LONGERON 21 LEFT. REPAIR WAS ACCOMPLISHED BY CORROSION REMOVAL, FABRICATION AND INSTALLATION OF AN REPAIR FITTING AND A REPAIR DOUBLER IN ACCORDANCE WITH DOUGLAS STRUCTURAL REPAIR MANUAL 53-20-0, 51-1-8 AND ENGINEERING ORDER 53-DC8-98.