As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4501 CREW REPORTED WHILE ON CLIMB-OUT LANDING/LEVER DISAGREE ON EICAS. GEAR WILL NOT RETRACT. CYCLED GEAR LEVER AND CONFIRMED 3 GREEN DOWN LIGHT. RETURN TO ORD. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED LANDING GEAR SELECTOR LEVER IAW EMB AMM TASK 32-32-02-000-800A AIRCRAFT RETURNED TO SERVICE.