As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ROC - FL 1836 - ON FINAL APPROACH, A STRONG BURNING SMELL WAS DETECTED IN THE CABIN. SMELL WAS NOTICEABLY STRONGER AT ROW 4. FLIGHT LANDED SAFELY. ON TAXI IN, AN INTERMITTENT RUBBING/GRINDING NOISE COULD BE HEARD THROUGHOUT CABIN. MAINTENANCE FOUND THE LEFT AIR CYCLE MACHINE SEIZED. REPLACED SAME. OPS CHECK GOOD. (M)