What was found
DURING CRUISE, LOWER CARGO SMOKE DETECTOR YELLOW MAINTENANCE LIGHT ILLUMINATED WITH GREEN LIGHT ILLUMINATED. REPLACED SMOKE DETECTOR UNIT AT AD CNT. DUE TO FALSE ALARM FAULT CODE IAW DC-8 MM 26-15-00-4. SYSTEM OPS CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CRUISE, LOWER CARGO SMOKE DETECTOR YELLOW MAINTENANCE LIGHT ILLUMINATED WITH GREEN LIGHT ILLUMINATED. REPLACED SMOKE DETECTOR UNIT AT AD CNT. DUE TO FALSE ALARM FAULT CODE IAW DC-8 MM 26-15-00-4. SYSTEM OPS CHECKED GOOD.