What was found
CORROSION ON HORIZONTAL CENTER BOX UPPER SKIN LEFT BUTTLINE 13 STRINGER 1 TO REAR SPAR. INSTALLED EXTERNAL DOUBLER PER EA B767-55-027802.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CORROSION ON HORIZONTAL CENTER BOX UPPER SKIN LEFT BUTTLINE 13 STRINGER 1 TO REAR SPAR. INSTALLED EXTERNAL DOUBLER PER EA B767-55-027802.