As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION*** ON AFT DRAIN MAST FITTING AT B.S. 990; BETWEEN STRINGERS 24 AND 25 LEFT; AROUND GROUND WIRE ATTACH POINT / REMOVED AFT DRAIN MAST FITTING AT BS 990 BETWEEN STRINGERS 24-25 LH AND REPLACED DUE TO NO ALLOWABLE DAMAGE IN SRM. IAW SRM 51-40-02 AND DRAWING 197A7443