What was found
DURING A DROP IN MAINTENANCE INSPECTION, FOUND CORROSION DAMAGE TO LAV SERVICE PORT INNER SKIN DOUBLER PAST LIMITATIONS IAW DC-8 SRM, AT Y=330 AND LONGERON 25 RIGHT. INSTALLED REPAIR DOUBLER IAW DER APPROVED ENGINEERING SKETCH B46-R01, TREATED AREA IAW DC-8 SRM 51-1-8.