As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED, AFTER TAKEOFF GEAR HANDLE WOULD NOT RETRACT. DOOR LOCK RELEASED LOUD NOISE IN FLIGHT. MAINTENANCE REMOVED AND REPLACED LANDING GEAR LEVER IAW EMB145 AMM 32-32-02. GEAR SWING PERFORMED, NO FAULTS FOUND. OPS CHECKED GOOD IAW EMB145 AMM 32-32-00. AIRCRAFT RETURNED TO SERVICE.