As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSY - CREW REPORTED TAIL COMPARTMENT OVERHEAT INDICATION. EMERGENCY DECLARED FLIGHT RETURNED MSY LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND DUCT 1860 LEAKING. PLACARD LEFT PACK AS INOPERATIVE. REPLACED DUCT AT DFW ON 04/14/2011. SYSTEM GROUND CHECK NORMAL OPERATION.