As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL-PIT - FLT 742 - AFTER TAKEOFF, THE LANDING GEAR WAS RETRACTED THE NOSE GEAR UNSAFE LIGHT STAYED ILLUMINATED. THE AIRCRAFT RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE NOSE GEAR PISTON AXLE ASSEMBLY. (M)