As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANTS REPORTED BURNING RUBBER SMELL IN CABIN ON SHORT FINAL APPROACH. -PERFORMED OPERATION CHECK OF PACK & PACK 2 WITH APU BLEED NO ODOR PRESENT PERORMED ENGINE IDLE RUN WITH PACKS AND CREW ASSISTANCE NO ODOR PRESENT IAW TSM 05-50-00-810-831-A. A/C OK FOR SERVICE. MOC # 64493