Boeing 737 captain reported receiving a 'terrain caution' during initial approach.

Attributes
ACN	1483647
Time
Date	201709
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 226
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

Narrative:

While on visual approach received terrain caution. Because it was at night; I disconnected the automation and adjusted flight path to correct error. We were not in landing configuration and re-established lateral and vertical path and continued the visual approach. I had selected level change while on autopilot and in heading select mode to join the localizer; and I believe the rate of descend was a contributing factor to the alert sounding.

Original NASA ASRS Text

Title: Boeing 737 Captain reported receiving a 'Terrain Caution' during initial approach.

Narrative: While on Visual Approach received Terrain Caution. Because it was at night; I disconnected the automation and adjusted flight path to correct error. We were not in landing configuration and re-established Lateral and Vertical Path and continued the visual approach. I had selected Level Change while on autopilot and in HDG Select mode to join the Localizer; and I believe the rate of descend was a contributing factor to the alert sounding.

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.