What was found
AIRCRAFT WAS GROUNDED: FORWARD CARGO FIRE LIGHT ILLUMINATED ON THE GROUND. FIRE WARNING BELL SOUNDED AND THE CARGO FIRE BOTTLE DISCHARGED. REMOVED AND REPLACED CARGO FIRE EXTINGUISHING BOTTLE (AALA202507315282), PER AMM 26-23-01. ALSO REMOVED AND REPLACED CARGO FIRE CONTROL UNIT (AALA202507316361), PER AMM 26-16-02, ALSO, REMOVED AND REPLACED ALL 4 FORWARD CARGO SMOKE DETECTOR (AALA202507314614), (AALA202507312870), (AALA202507317070), (AALA202507316019), PER AMM 26-16-01. OPERATIONAL CHECK GOOD.