As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4105 - CREW CALLED TO REPORT LANDING GEAR AIR GROUND FAIL MSG ON TAKEOFF AND GEAR WOULD NOT INITIALLY RETRACT. CREW DID GET GEAR UP. ALSO RECEIVED BLEED 2 CLOSED MESSAGE. AC LANDED WITHOUT INCIDENT. REPLACED NOSE GEAR PROX SWITCH AND FUNCTIONAL CHECK OF PROX SWITCH IAW EMB 145 32-63-00 AND PERFORMED EXTENSION RETRACTION TEST IAW EMB AMM 32-30-00. AIRCRAFT RETURNED TO SERVICE.