As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW CREW REPORTED ON TAKEOFF ROLL CAPTAIN LOST AIRSPEED, ALTITUDE, & VERTICAL SPEED INDICATOR. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED NR 1 AIR DATA COMPUTER. SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.