As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: FOUND CRACKED UPPER SKIN AT BTU CUTOUT ON AFT CARGO COMPARTMENT BALL MAT PANEL 151SF. ACCOMPLISHED PERMANENT REPAIR AT UPPER SKIN BTU CUTOUT ON AFT CARGO COMPARTMENT PANEL 151SF PER B777-200 SRM 53-00-53-2R-6.