As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND ON LOWER SKIN BTW FR 20-21 AND BTW STR 21L-21R IN CF1 DOOR STRUCTURE AREA. SKIN AT FR20-21 BTW 21L-21R CORROSION BLENDED FOR ENGINEERING REVIEW. IN CF1 FLOOR STRUCTURE AREA. BTW FR20-21 AND BTW STR 21L-21R, LOWER SKIN REPAIRED WITH DOUBLER AND FILLER. INSTALLED WITH SOLID RIVETS. CORROSION LEVEL II