As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 594 - AFTER TAKEOFF, NOSE GEAR FAILED TO RETRACT COMPLETELY. RED LIGHT REMAINED ILLUMINATED AND LOUD AIR NOISE REPORTED BY CREW. AIRCRAFT RETURNED AND LANDED DFW WITHOUT INCIDENT. SERVICED NOSE GEAR STRUT WITH FLUID AND NITROGEN. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)