What was found
AFTER PUSHBACK AND ENGINE START RECEIVED ECAM FOR AFT CARGO CPT SMOKE. COMPLIED WITH ECAM AND QRH. PREPPED FOR REMOVAL OF NR 1 LWR CARGO COMP FIRE BOTTLE. REF:A300 M.M.CHAPT:26-23-11-4-02. OPENED FWD LWR CARGO DOOR. PULLED AND TAGGED CIRCUIT BREAKERS, REMOVED RT SIDEWALL PANEL (HARDWARE AND PANEL IN WORK AREA). ORDERED NEW FIRE BOTTLE (MPN-35200002-1) NIS OAK. NEW DISCHARGE CARTRIDGE (MPN-30900000M) IN STOCK OAK. REMOVED AND REPLACED AFT CARGO PIT FWD SMOKE DETECTOR PER AMM 26-16-11-4 AND 26-16-00-5-01. OPS CHECK NML. DUE TO CREW QRH PROCEDURES OF DISCHARGING THE NR 1 LOWER CARGO BOTTLE REMOVED AND REPLACED THE NR 1 LOWER CARGO BOTTLE PER AMM 26-23-11-4-02 CLOSED AND SECURED THE SIDEWALL PANEL.