What was found
DURING C-CHECK INSPECTION, DISCOVERED EXFOLIATION CORROSION ON THE LOWER FUSELAGE SKIN AT BS 642, LONGERON 30, BL 0.0. AFFECTED AREA WAS TRIMMED TO REMOVE CORROSION. INSTALLED INTERNAL FINGER DOUBLERS AND EXTERNAL REPAIR DOUBLERS WET WITH SEALANT AND TOP COATED AS REQUIRED. ACCOMPLISHED IAW EIAA, ENGINEERING CHANGE/REPAIR AUTHORIZATION NR 916-53-016-2. (M)