Regional Jet 200 ER/LR (CRJ200)
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation - Altitude Excursion From Assigned Altitude; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Provided Assistance; Flight Crew Returned To Clearance; Flight Crew Took Evasive Action
Aircraft; Human Factors
Vectors to the visual 3 at ZZZ. We were approximately 5 miles east of the airport and essentially on a downwind for Runway 3 at the assigned altitude of 3;000 MSL. Captain had just noted that the RA (Radio Altimeter) was indicating 1;800 feet and about 5 seconds later we received the EGPWS (Enhanced Ground Proximity Warning System) warning. I was the Pilot Flying; the autopilot was disconnected; an immediate climb was initiated to approximately 4;000. The deviation was reported to ATC and we were returned to the original assigned altitude of 3;000. Flight was continued with vectors for the ILS 3 and landed without any further incident. Cause unknown. We were on the east side of the airport ZZZ; where the MSA (Minimum Safe Altitude) is 2;000 MSL. We were at the assigned altitude of 3;000 MSL at the time of the terrain warning. After reporting the event to ATC; the Controller stated that MSA for that area is 2;000 MSL.
CRJ-200 First Officer reported receiving a terrain warning while on a visual approach at the assigned altitude.