As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF FROM CLE. THE GEAR OVERRIDE TRIGGER WAS USED AND THE GEAR RAISED. THE AIRCRAFT WAS RETURNED TO CLE WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED A GEAR SWING AND COULD NOT DUPLICATE THE FAILURE. THE LANDING GEAR LEVER LOCK SOLENOID WAS REMOVED AND REPLACED AS A PRECAUTIONARY MEASURE IAW MM 32-31-31, PAGE 401.