What was found
WHEN GEAR SELECTED UP, CREW RECEIVED RED GEAR DISAGREE CAS MESSAGE, FOLLOWED BY NOSE DOOR OPEN RED CAS MESSAGE. CREW RAN QUICK REFERENCE HANDBOOK PROCEDURE FOR GEAR DISAGREE CAS MESSAGE AND RETURNED TO FIELD WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND CENTERING SENSOR BRACKET ON NOSE GEAR TO BE BENT. MAINTENANCE R & R CENTERING SENSOR BRACKET, ADJUSTED SENSOR AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.