As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE SYS FAULT STATUS MESSAGE. PLACED ON MEL 26-00-1. MEL CLEARED ON 9/27. RAN FIRE SYS TEST MDC REPORTS AFT SMOKE DETECTOR FAILED REPLACED AFT CARGO SMOKE DETECTOR IAW AMM TASK 26-15-01-000-801 AND TASK 26-15-01-400-801 C/W OPS TEST. OPS TEST GOOD NO OTHER DEFECTS NOTED. ACFT RETURNED TO SERVICE.