As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF AND LANDING FROM DFW-RDU, THE RIGHT PACK BECAME UNCONTROLLABLE IN AUTOMATIC OR MANUAL MODES AND SHOWED 17 PSI IN THE RIGHT TENTH STAGE ONLY. A BURNING ODOR ALSO OCCURRED IN THE CABIN. THE AIRCRAFT LANDED SAFELY IN RDU. MAINTENANCE REMOVED AND REPLACED THE AIR CYCLE MACHINE. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)