As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C RIGHT WING I/B MID FLAP T/E WEB UPPER CHORD CORROSION REVEALED AT 73" - 78" AS MARKED (COUNT FROM I/B). CORROSION BLEND OUT 0.083" X 3/4" X 3" EXCEED SRM 57-50-01 FIG 3 LIMITS. CHORD REPAIRED AS PER HX RS R57-55-35354 & UPS ENGINEERING FILE 747-57-20081.