What was found
CLE - FLT 4011 - CREW REPORTED THE LEFT PACK FILLED THE COCKPIT WITH SMOKE, AFTER THE PACK WAS TURNED OFF THE SMOKE CLEARED. AIRCRAFT WAS RELEASED IAW MEL 21-51-00 NR 173666. THE NEXT DAY MAINTENANCE INSPECTED THE NR 1 PACK ASSOCIATED COMPONENTS AND PERFORMED OPERATIONAL CHECKS WITH APU AND ENGINE BLEED AIR WITH NO DEFECTS NOTED IAW EMB-145 MM 21-51-00. REMOVED FROM MEL. (M)