As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING OUTBOARD FLAP MID VANE CHAFED APPROX 18 INCHES FROM NR 3 FLAP FAIRING. REPAIRED DAMAGED AREA OF THE LEFT WING O/B FLAP MID VANE IAW MD-90 SRM 51-10-02D PG 18B. INDENTIFIED PER DELTA PS 900-5-1 NR 4 ON N/R 5400-0002 AT HMV-2 IN OKC.