As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING UPPER SURFACE OVERWING FILL PORT ADAPTER FLANGE HAS CORROSION. REMOVED CORROSION FROM LT WING UPPER FILL PORT ADAPTER FLANGE AND WAS FOUND OUT OF LIMITS IAW SRM 57-20--01-1A-1. REPAIRED OVERWING FILL PORT ADAPTER FLANGE IAW FAS EA 20017 REV IR.