What was found
DURING ROUTINE C CHECK INSPECTION, CORROSION WAS DETECTED AT AFT ACCESSORY COMPARTMENT INTERNAL DOUBLER AT FUSELAGE STATION 1620, BETWEEN LONGERONS 24 AND 27 LEFT. REPAIR ACCOMPLISHED CORROSION REMOVAL, FABRICATION AND INSTALLATION REPAIR FILLERS, REPAIR DOUBLER AND TRIPLER IN ACCORDANCE WITH FAA DER APPROVED COO-8-53-314-98 AND ENGINEERING ORDER 53-DC8-877.