As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK SUPPORT BRACKET LOC. AT STA 1706 AT LEVEL STR 31L AT AFT CARGO COMPARTMENT. MAINTENANCE REPLACED SUPPORT BRACKET AND FASTENERS LOCATED. AT STA 1706 ATLEVEL STR 31L AT AFT CARGO COMPARTMENT IAW B777-200 SRM 51-40-02-0G AND DWG-146W3113.