What was found
DURING D-CHECK INSPECTION, FOUND CORROSION ON SEVERAL AREAS OF FUSELAGE SKIN FROM FS 1140 TO 1340 FROM L31 LEFT TO L31 RIGHT. REMOVED AND REPLACED LOWER FUSELAGE SKIN IAW SRM 51-21-1. ALSO, TREATED AND PRIMED ALL AREAS IAW SRM 51-1-8. (M)