As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT O/B FLAP UPPER SKIN SEVERAL RIVETS WITH FRETTING CORROSION UNDER RIVET HEADS ON AFT SPAR BETWEEN W/STA 226.15 TO W/STA 234.25 & W/STA 245.84 TO W/STA 254.96. (C-CHECK) RO 3/25/2020 REMOVED AND REPLACED FASTENER ON LH OTBD FLAP UPPER SKIN REF REO. SEE CONTINUATION CARD FOR DETAILS. SEE CONTINUATION CARD FOR DETAILS