What was found
DURING ROUTINE C-CHECK INSPECTION, CORROSION WAS FOUND ON LONGERON 31 LEFT, OUTBOARD FLANGE, AT FUSELAGE STATION 480. REPAIR ACCOMPLISHED CORROSION REMOVAL, FABRICATION AND INSTALLATION OF A REPAIR ANGLE IN ACCORDANCE WITH DER APPROVED DRAWING 853-223-97 AND ENGINEERING ORDER 53-DC8-732.