As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: SMOKE AFT CARGO WARNING NUMEROUS TIMES DURING FLIGHT , ATTEPTED TO RUN ECAM AND WOULD GO AWAY. FINAL WARNING RETURNED AND COMPLETED ECAM. DISCHARGED AFT BOTTLE. RETURNED TO MIA, EMERGENCY DECLARED. REMOVED AND REPLACED ALL 4 AFT CARGO SMOKE DETECTOR IAW AMM 26-16-15. REMOVED AND REPLACED AFT CARGO COMP. FIRE BOTTLE IAW AMM 26-23-42. PERFORMED OPERATIONAL TEST REQUIRED IAW AMM 26-23-30, AMM 26-16-00.