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Air carrier captain reported a ground proximity terrain warning while on visual approach.
| Attributes | |
| ACN | 1578727 |
| Time | |
| Date | 201809 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ROA.Airport |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Medium Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Inflight Event / Encounter CFTT / CFIT |
Narrative:
On a visual approach to runway 34 at roa we responded to a GPWS terrain message. I was the PF (pilot flying) and had planned on joining the ILS at vinton (FAF) to back up the visual approach. Approximately 4-5 miles abeam of the FAF with approach mode armed and autopilot engaged I got a localizer 1 capture and the aircraft started to make a left turn then it started going back right. As I was about to disconnect the automation we received the terrain; terrain; pull up message. I immediately increased thrust and started pitching up. The ground was clearly visible during the entire approach. Once clear; I assessed the situation and continued the approach by joining the localizer and glideslope near the FAF.threats could have been the terrain. I thought I had a reasonable plan to manage that from previous experience at this airport; planning on backing up the approach with the ILS course and managing the descent for the final turn. Undesired aircraft state occurred when I got a localizer capture at a point I would not have expected. At no time did it appear that my descent planning was inappropriate. ATC had cleared us for the visual approach from 5200 ft and I was descending with the goal of turning final at the published altitude of 3800. ILS was tuned and I was monitoring the glide slope indications but not trying to fly the glide slope on the base leg.
Original NASA ASRS Text
Title: Air carrier Captain reported a ground proximity Terrain warning while on visual approach.
Narrative: On a visual approach to runway 34 at ROA we responded to a GPWS Terrain message. I was the PF (Pilot Flying) and had planned on joining the ILS at VINTON (FAF) to back up the visual approach. Approximately 4-5 miles abeam of the FAF with approach mode armed and autopilot engaged I got a LOC 1 capture and the aircraft started to make a left turn then it started going back right. As I was about to disconnect the automation we received the Terrain; Terrain; Pull Up message. I immediately increased thrust and started pitching up. The ground was clearly visible during the entire approach. Once clear; I assessed the situation and continued the approach by joining the localizer and glideslope near the FAF.Threats could have been the terrain. I thought I had a reasonable plan to manage that from previous experience at this airport; planning on backing up the approach with the ILS course and managing the descent for the final turn. Undesired aircraft state occurred when I got a LOC capture at a point I would not have expected. At no time did it appear that my descent planning was inappropriate. ATC had cleared us for the visual approach from 5200 ft and I was descending with the goal of turning final at the published altitude of 3800. ILS was tuned and I was monitoring the glide slope indications but not trying to fly the glide slope on the base leg.
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.