As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW INFLIGHT. NOSE LANDING GEAR FAILED TO RETRACT. RED UNSAFE LIGHT ILLUMINATED. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED PISTON AND ACCOMPLISHED NOSE LANDING GEAR STRUT REPACK AND SERVICE. SYSTEM GROUND CHECKED NORMAL OPERATION. (CLOSED)