As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB - DURING CLIMBOUT THE NOSE GEAR STUCK DOWN AFTER RETRACTION. MAY HAVE DEPLOYED INADVERTENTLY. AIRCRAFT RETURNED TO ATL. IF GEAR MOVED PAST OFF, NOSE GEAR WILL DEPLOY PER FIM 32-30-00-810-809. MAINTENANCE INSPECTED NOSE GEAR AREA. NO DEFECTS NOTED, AIRCRAFT RETURNED TO SERVICE.