What was found
DURING D-CHECK INSPECTION, CORROSION WAS FOUND ON SEVERAL AREAS OF FUSELAGE SKIN FROM FS 430 TO 610 AND FROM LONGERON 31 RIGHT TO LONGERON 31 LEFT. REMOVED AND REPLACED LOWER FUSELAGE SKIN FROM FS 430 TO 610 AND FROM L31 RIGHT TO L31 LEFT IAW SRM 51-1-21. ALSO, TREATED AND PRIMED ALL AREAS IAW SRM 51-1-8. (M)