Regional Jet CL65; Undifferentiated or Other Model
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Flight Crew Became Reoriented; Flight Crew Took Evasive Action
Human Factors
We were descending and being vectored toward SBN from the southwest relative to the airport. Approach Control cleared us to descend and maintain 3000 feet. Upon reaching the altitude; Approach Control asked if we can see the airport. We were approximately 12 miles southwest of the airport and had visual contact of the airport so we advised Approach Control about it. Approach Control cleared us for the visual approach for 27L. Since we were positioned on an angled left downwind of the runway; I elected to continue on the current heading and descend to 2000 feet; which is the glideslope intercept altitude for the ILS. I selected 2000 feet in the altitude preselector and initiated a 500 FPM descent. Upon reaching approximately 2500 feet; we received a 'Caution; Obstacle' EGPWS aural caution. Upon looking forward out of the window; we both saw multiple antenna in the proximity. I disconnected the autopilot and initiated a climb back to 3000 feet; flying above the antennas. Once clear of the antennas; I continued my descent and commenced the visual approach. The approach and landing were uneventful.During the arrival brief; I briefed the MSA (3000 feet) but failed to point out the highest obstacle in the area; which were the antennas we encountered. I also falsely believed ATC [had] vectored us on a course free of high elevation obstacle and omitted taking caution when approaching the airport.Always locate and brief the highest obstacle shown in the approach plate; and correlate to the potential scenarios which could become a threat during the approach. Fully understand that accepting a visual approach puts all traffic and obstacle clearance responsibility on the pilots; and not on ATC.
[Report narrative contained no additional information.]
Regional jet flight crew reported setting off a ground proximity warning event while executing a visual approach into SBN.