As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL TANKS, LT WING TANK OVERWING FILL PORT ADAPTER MATING SURFACE CORRODED. REMOVED CORROSION FROM LT OVERWING FILL PORT ADAPTER MATING SURFACE IAW SRM 51-10-02, OUT OF LIMITS IAW SRM 57-20-01-1A STEP 3E. REPAIRED LT WING TANK FILL PORT ADAPTER MATING SURFACE IAW SRM 57-20-01-2R REPAIR 6, WITH FUEL PORT ADAPTER PN 38768, BATCH 0002876328. MAJOR REPAIR.