What was found
DURING AIRPLANE PASSENGER TO FRIGHT CONVERSION: FOUND MANY SEVERE CORROSION ON UPPER SKIN OF THE CTR BOX WING LT SIDE STA 1199;1219 AND 1229 X= 100 RH SIDE STA 1199;1219 AND 1229 X=-100. REMOVE FASTENERS IN THE AFFECTED AREA, REMOVED CORROSION PER SRM 57-20-00 VOL II FIG 12, PERFORMED HFEC SHOT PEEN THE REWORKED AREA PER MD11-SRM HFEC TO INSURE NO CRACK. INSTALLED 1 FIRST O/O FASTENERS AND APPLIED SEALANT AND FUEL VAPOR BARRIER COATING.