As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PREFLIGHT NR 10 MAIN CARGO DECK SMOKE DETECTOR WOULD NOT TEST. TRANSFERRED TO DMI NR 13532 IAW MEL 26-6 CAT. "C" PLACARDS INSTALLED. REF. DMI NR 13532 ON PREFLIGHT NR 10 MAIN CARGO DECK SMOKE DETECTOR WOULD NOT TEST. REPLACED NR 10 SMOKE DETECTOR UNIT IAW M/M 26-10-00. THIS CLEARS DMI NR 13532 NR 10 SMOKE DETECTOR TESTS OK IAW M/M 26-10-00.