As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT-MCO FLT 1879 AFTER TAKEOFF, NOSE LANDING GEAR DID NOT RETRACT AND THE RED GEAR UNSAFE LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE NOSE STRUT SCHRADER VALVE AND ORING. THE NOSE GEAR WAS SWUNG AND ALL CHECKED NORMAL.