As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO FIRE DETECTION SYSTEM FAILED A SMOKE TEST. TROUBLESHOT, PERFORMED AN OP CHECK OF AFT LOWER CARGO COMPARTMENT SMOKE DETECTION SYSTEM, CHECKED GOOD IAW AMM 26-16-001735-399. PERFORMED LOWER COMPARTMENT SMOKE DETECTION SYSTEM BITE PROCEDURE,BIT PROCEDURE SYSTEM TEST GOOD IAW B767 FIM 26-16-FAULT TREE 806.