What was found
AFTER LANDING, FLIGHT CREW REPORTED SMOKE FILLED COCKPIT AND CABIN. ECAM STATED AFT CARGO FIRE. FOLLOWED ECAM PROCEDURES AND FIRED AGENT BOTTLE. SMOKE STARTED TO DISSIPATE AFTER FIRING AGENT BOTTLE. REPLACED FIRE BOTTLE DUE TO DISCHARGE IAW AMM 26-23-41-400-005. REMOVED 4 SMOKE DETECTOR UNITS IN AFT CARGO COMPARTMENT IAW AMM 26-16-15-000-001. INSTALLED 4 SMOKE DETECTOR UNITS IN AFT CARGO COMPARTMENT IAW AMM 26-16-15-400-001. PERFORMED OPERATIONAL CHECK ON AFT CARGO SMOKE DETECTION SYSTEM IAW AMM 26-16-00-710-001 AND CHECKED OK.