As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT PACK TEMPERATURE CAUTION FOLLOWED BY LEFT PACK FAULT CAUTION, RECEIVED RIGHT BLEED DUCT CAUTION AT 20,000 FEET. RETURNED TO DFW. PERFORMED WORK SCOPE DEVELOPED BY AMERICAN EAGLE REPEATER DEPARTMENT WITH NO DEFECTS NOTED. PERFORMED FUNCTIONAL CHECK FLIGHT ACCOMPLISHED WITH NO DEFECTS. AIRCRAFT RETURNED TO SERVICE.