As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FL 84 - FLIGHT RETURNED TO FIELD DUE TO CAPTAIN UNABLE TO RETRACT THE LANDING GEAR. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE R227 RELAY IN THE LANDING GEAR LOGIC SHELF E22. OPERATIONAL CHECK OF LEVER LOCK SOLENOID NORMAL ON THE GROUND PER MAINTENANCE MANUAL 32-31-31. (M)