What was found
DURING HEAVY CHECK MAINTENANCE, CORROSION WAS DISCOVERED ON AFT CARGO CUTOUT LOWER BEAM AT FR 77 + 6 RBL 17. R & R THE BEAM IAW SRM 51-40-01, 51-41-02, AND 51-43-03.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK MAINTENANCE, CORROSION WAS DISCOVERED ON AFT CARGO CUTOUT LOWER BEAM AT FR 77 + 6 RBL 17. R & R THE BEAM IAW SRM 51-40-01, 51-41-02, AND 51-43-03.