As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF FROM DFW EN ROUTE TO HOT, THE FIRST OFFICERS PITOT SYSTEMS INSTRUMENTS FAILED. THE PILOT RETURNED TO DFW WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS THEN FERRIED TO HOT MAINTENANCE. UPON INSPECTION, THE PITOT LINE GOING INTO THE FDR WAS FOUND TO BE LOOSE. THE LINE WAS RESECURED AND ALL TESTS COMPLETED CHECKED NORMAL. AIRCRAFT WAS RETURNED TO SERVICE.