As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED, LANDING GEAR FAILED TO RETRACT AFTER TAKEOFF. MAINTENANCE REMOVED AND REPLACED LANDING GEAR CONTROL LEVER IAW EMB145 MM 32-32-02. OPS CHECKED GOOD. GEAR SWUNG CHECKS GOOD. AIRCRAFT TEST FLOWN AND CHECKED SATISFACTORY. AIRCRAFT RETURNED TO SERVICE.