What was found
CABIN SMOKE: AFTER CLEARING THE RUNWAY AND SWITCHING FROM ENGINE BLEED AIR TO APU BLEED AIR, A BURNING SMELL STARTED COMING FROM THE A/C VENTS FOLLOWED BY A HAZE IN THE CABIN. WE THEN SWITCHED OFF THE APU AIR AND THE SMELL AND HAZE DISSAPPATED AFTER A COUPLE OF MINUTES. WE KEPT ALL THE BLEEDS OFF FOR THE REMAINDER OF THE TAXI TO THE RAMP. AFTER WE SHUTDOWN I CHECKED THE AFT EQUIPMENT BAY AND FOUND NO ODOR OR FUMES IN THE BAY. WE RECEIVED NO CAS MESSAGES DURING THIS TIME.//CORRECTIVE ACTION// R/R ACM WITH REF TO CL-350 AMM 21-52-13. OPS AND LEAK CHECK GOOD