As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, FRETTING CORROSION WAS FOUND ON THE CENTER WING CUTOUT OF THE FUEL PANEL HOUSING AT 522CT. REFERENCE ATR42 SRM 57-14-12 PAGE 302 FIG 301 SHEET 1. AFTER DAMAGE REMOVAL THE REMAINING THICKNESS IS 0.425 AROUND THE ENTIRE CIRCUMFERENCE OF THE DOOR HOUSING. THE REPAIR IS IAW ATR 42 STRUCTURAL REPAIR INSTRUCTION DO/TS-3988/079267 REF: ANA/E/4237/2007/E-001. APPLICABILITY: ATR 42 MSN 135 DATED 09/21/2007.