What was found
INSPECTION TYPE:N/A, AIR TURNBACK - CARGO FIRE WARNING WITH ACRID SMOKE. CARGO FIRE SWITCH DEPRESSED. ACFT EVACUATED ON TAXIWAY AFTER LANDING. INFLT, AUTOPILOT WOULD NOT ENGAGE, COLOR WAS NOT PRESENT ON ADI'S. *S/D* T/S FOUND ENG LEAKING OIL IN BLEED AIR SYSTEM AT TAKEOFF POWER. REMOVED AND REPLACED ENGINE PER TC 5001PW AND RA N PER 5002PW. ALL OPS CHECKED GOOD.