Emb-140 flight crew reported a terrain warning during visual approach.

Attributes
ACN	1567081
Time
Date	201808
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	EMB ERJ 140 ER/LR
Operating Under FAR Part	Part 121
Route In Use	Visual Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Inflight Event / Encounter CFTT / CFIT

Narrative:

Approach control cleared for us for the visual when we declared airport in sight. We had been set up on a right downwind. Using the RNAV Y chart as a reference; pilot flying (PF) initiated the descent to be above 2400 between the two fixes and was about to start the turn for the right base turn when we got the [advisory] terrain pull up. This also while scanning to maintain visual contact with the airport. I executed the escape maneuver. After completing the escape maneuver I commenced the base turn and continued the visual approach.downwind leg too far out from airport and crew needed to maintain altitude for longer. Commercial passenger flights should always be vectored for the RNAV 21 due to the surrounding terrain and high terrain due east of final approach course for 21.

Original NASA ASRS Text

Title: EMB-140 Flight crew reported a Terrain warning during visual approach.

Narrative: Approach control cleared for us for the visual when we declared airport in sight. We had been set up on a right downwind. Using the RNAV Y chart as a reference; Pilot Flying (PF) initiated the descent to be above 2400 between the two fixes and was about to start the turn for the right base turn when we got the [advisory] Terrain Pull up. This also while scanning to maintain visual contact with the airport. I executed the escape maneuver. After completing the escape maneuver I commenced the base turn and continued the visual approach.Downwind leg too far out from airport and crew needed to maintain altitude for longer. Commercial passenger flights should always be vectored for the RNAV 21 due to the surrounding terrain and high terrain due east of final approach course for 21.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.