What was found
STRONG BURNING ODOR ON T/O FA REPORTED HAZE IN THE CABIN. SLOWLY DISSIPATED OVER 30 MIN. SMELL REOCCUR ON APPROACH 4000 FT UNTIL TAXI IN / TROUBLESHOT IAW CRJ 700 FIM 21-21-00-810-806-A01. NO FAULTS FOUND AT THIS TIME. NO ODORS OR HAZE NOTED AT THIS TIME. APPLIED MEL 21-51-1-2 (AIR CONDITIONING PACKS - RH PACK INOPERATIVE) RH PACK INOP DUE TO REDUCED RELIABILITY. / REMOVED AND REPLACED RH ACM IAW CRJ 700 AMM 21-51-08-000/400-801.