As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INS/MTC, PERFORM F/U CHECK FOR PREVIOUS STATUS MSG "FWD CARGO DET 1". C/W LWR CARGO COMPART SMOKE DETECT OPS TEST IAW AMM 26-16-00. OPS CHECK GOOD. NO MSG PRESENTED IN EICAS STS. PER MAINTENANCE CONTROL REQUEST, FWD CARGO DETECT 1 SMOKE DETECTOR REQUIRES REPLACEMENT. REPLACED FWD CARGO DET 1 SMOKE DETECTOR WITH SERVICABLE UNIT. OPS CHECK GOOD IAW B767 AMM 26-16-01 A/C IS ETOPS 180. A/C RETURNED TO SERVICE.