As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DECLARED EMERGENCY LG ISSUE FLIGHT CXL. DURING MAINTENANCE INSPECTION ON FLIGHT 3313 FOUND EICAS GEAR DISAGREE ON TAKEOFF. AIRCRAFT WAS REMOVED FROM SERVICE. COMPLY WITH THE EXTENSION AND RETRACTION OF THE LANDING GEAR. COULD NOT DUPLICATE FAULT. OPS CHECK GOOD IAW CRJ 700 AMM 32-30-00.