As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED BURNING SMELL IN CABIN DURING CLIMBOUT OF DEN. CREW DECLARED AN EMERGENCY AND RETURNED TO FIELD AT DEN, AND LANDED WITHOUT INCIDENT. MAINTENANCE WAS DISPATCHED TO THE AIRCRAFT TO TROUBLESHOOT, AND FOUND THE DUCTING OF PACK 2 DAMAGED. MAINTENANCE SECURED THE DUCTS AND PLACED THE PACK NR 2 ON MEL 21-51-00-1. THE A/C WAS THEN RETURNED TO SERVICE.