Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe
Flight Crew Overcame Equipment Problem; Flight Crew Executed Go Around / Missed Approach; Flight Crew Diverted
Aircraft
On arrival to ZZZ; upon selection of the landing gear; received the 'GEAR DISAGREE' warning message with the associated aural message. We executed a missed approach and continued with Approach for vectors to run the QRH. Flight Attendant was notified of the situation and told her we would get back to her in a few minutesRunning the QRH; we accomplished a manual gear extension. Based on the situation and abnormal indications we received at the start of this problem; we felt a longer runway was needed to be 'suitable' for safety. A diversion to ZZZ1 was now the new plan. Flight Attendant was then called again and given all information and we landed at ZZZ1 without incident. Threats were the close and tight airspace and the QRH at the same time. [ATC] did a great job handling us.
CRJ-200 Captain reported receiving a gear disagree while extending the landing gear to land at ZZZ. The crew diverted to nearby ZZZ1 for its longer runways and manually extended the gear.