As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 707 FROM KPHX TO KMCI. DURING CRUISE, THE LOWER AFT CARGO FIRE WARNING CAME ON. FOLLOW ALL CCIA AOM ABNORMAL PROCEDURES, CONTACTED ATC AND DECLARED AN EMERGENCY. THE AIRCRAFT DIVERTED TO KGCK AND LANDED WITHOUT INCIDENT. UPON LANDING, THE AIRCRAFT WAS THEN INSPECTED AND DEFERRED THE AFT CARGO COMPARTMENT FIRE DETECTION UNDER MEL 26-19. AIRCRAFT RETURNED TO SERVICE. CLEARED MEL 26-19 BY REPLACING THE LOWER AFT CARGO SMOKE DETECTOR IAW SECURAPLANE ST3000 MANUAL WITH NO MALFUNCTION FOUND. AIRCRAFT RETURNED TO SERVICE.