As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - AIRCRAFT UNABLE TO RETRACT NOSE LANDING GEAR. EMERGENCY DECLARED, RETURNED TO DFW WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND METERING TUBE BAD AND NOSE STRUT FLAT. REPLACED NOSE LANDING GEAR SHOCK STRUT SEALS. SYSTEM GROUND CHECK NORMAL OPERATION.