What was found
(CAN) MAYDAY DECLARED ON RUNWAY DUE TO AFT CARGO WARNING, FIRE SUPPRESSION FIRED, CFR INSPECTED AFT CARGO, NO SMOKE/FIRE, LIVE IN AFT CARGO WAS OK. OPS TEST OF CARGO COMPARTMENT SMOKE DETECTION SYS CARRIED OUT IAW AMM 26-16-00, CHECKS SERVICEABLE. CARGO FIRE EXTINGUISHER BOTTLE REPLACED IAW AMM 26-23-41-400-004.