What was found
DURING CREW PRE-FLIGHT, 1B MCD CARGO DECK SMOKE DETECTOR FAILED. MAINTENANCE DEFERRED DI# 67028 IAW MEL 26-16-2-2. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CREW PRE-FLIGHT, 1B MCD CARGO DECK SMOKE DETECTOR FAILED. MAINTENANCE DEFERRED DI# 67028 IAW MEL 26-16-2-2. AIRCRAFT RETURNED TO SERVICE.