What was found
DURING A MAINTENANCE VISIT, FOUND CORROSION TO FUSELAGE SKIN AT LT REAR CARGO PIT Y=1230 TO 1240. ALSO, FOUND CORROSION ON LONGERON 31L. REMOVED FASTENERS AND OPEN AREA, REMOVED CORROSION FROM SKIN AND LONGERONS FORM Y=1190 TO Y=1310, TREATED AND PRIMED AREA, FABRICATED NEW FINGER DOUBLERS AND INSTALLED IAW DC-8 SRM 51-1 AND 53-2-0, CUTOUT DAMAGED AREA OF LONGERON 31L FABRICATED AND INSTALLED REPAIR IAW DER APPROVED COTNEY ENGINEERING SKETCH C-44-R08. REINSTALLED FUSELAGE SKIN IAW DC-8 SRM 51-1-21 AND 51-1-20D.