As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
C2 CHECK - LT UPPER WING FUEL TANK PANEL 524AT AND WING MATING SURFACE BOTH HAVE FRETTING CORROSION. BLENDED DAMAGED AREAS AS REQUIRED FOUND TO BE WITHIN ALLOWABLE LIMITS OF RD 8/4-57-442 AND RD 8/4-57-445. COMPLETED REPAIRS IAW RD 8/4-57-445 AND RD 8/4-57-442.