As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE DETECTED IN MAIN DECK. TROUBLESHOT IAW TSM 26-10-00-810-820-A, FIRE DETECTION SYSTEM TEST FOR AREAS PRESSURIZED THROUGH THE MCDU IAW AMM 26-10-00-740-801. READING OF THE BITE TEST REQUESTS TO REPLACE THE CIDS DIRECTOR NR 1, REPORTED FAILURE IN THE MDCC SMOKE DETECTORS 119WU AND 120WU. REMOVED AND REPLACED SMOKE DETECTOR FIN 119WU AND 120WU IAW AMM 26-19-15 PB 401 CONF 00. PERFORMED OPERATIONAL CHECK OF THE CARGO COMPARTMENT SMOKE DETECTION IAW AMM TASK 26-19-00-710-802.