As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: BOTH BLOWER FAULT AND EXTRACT FAULT APPEARED ON CLIME OUT. DID NOT RESET. FLIGHT DECLARED AN EMERGENCY AND RETURNED TO DFW, LANDING SAFELY. REPLACED AVIONICS EQUIPMENT VENTILATION COMPUTER. PER AMM 21-26-34. CHECKS NORMAL.