As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE-DEPARTURE CHECK, FOUND MAIN CARGO DECK SMOKE DET 2A AND 2B WOULD NOT RESET. MAINTENANCE REMOVED AND REPLACED SMOKE DETECTORS 2A AND 2B IAW B767 AMM 26-14-01. TEST OK, NO FAULTS. AIRCRAFT RETURNED TO SERVICE. POSITION 2A: PN CGFT1100-01, SN 2483 POSITION 2B: PN CGFT1100-01, SN 2174