Narrative:

It was the first flight of our trip and we were making our way into hdn. The first half of the flight went well and there wasn't any issues. As we were about to begin our descent into hdn we began to hear multiple aircraft setting up for visual approaches into hdn and ones on the ground attempting to depart. This is normal for this time of the year due to the heavy ski traffic in the mountains. On our approach into hdn we were cleared direct the field; which set us up pretty much on a straight in final for runway 28; and left us a little higher until center could get confirmation the [aircraft] ahead of us was on the ground. Once he cancelled we were given our visual approach clearance about 9-10 miles out at 11;000 feet and we set up for the straight in for runway 28. During the captain's approach briefing we did discuss the terrain that lies about 5 miles to the east of the runway and discussed clearing it at an appropriate altitude before descending towards the runway. Captain had the autopilot off and was visually flying the aircraft to the runway. During the descent over the terrain we received a 'whoop; whoop; terrain; terrain; pull up' call out that continued for approximately 10 seconds. The last time I remember looking at the pfd it showed us 1;300 feet on the radar altimeter and we were above 9;200 feet (1;000 feet above the higher of the two peaks). We both had visual contact with the terrain and when we received the alert we were already on the backside of the terrain that slopes down towards the runway and were in a position for a continued descent. Either way we proceeded to add power and began to climb away to ensure adequate separation with the terrain. Once the alerts had ceased the captain lowered the nose and continued the descent into khdn.I believe the reason for the alert was due to our rate of descent in close proximity to terrain. And if this was the case a more gradual descent with a maneuver or two towards the runway would have prevented this alert.

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Original NASA ASRS Text

Title: Flight crew experienced a GPWS terrain warning at 9;200 feet during a day visual approach to Runway 28 at HDN. The crew leveled off momentarily and believe the descent rate caused the erroneous warning due to the 8;200 foot hill 5 NM to the east.

Narrative: It was the first flight of our trip and we were making our way into HDN. The first half of the flight went well and there wasn't any issues. As we were about to begin our descent into HDN we began to hear multiple aircraft setting up for visual approaches into HDN and ones on the ground attempting to depart. This is normal for this time of the year due to the heavy ski traffic in the mountains. On our approach into HDN we were cleared direct the field; which set us up pretty much on a straight in final for Runway 28; and left us a little higher until Center could get confirmation the [aircraft] ahead of us was on the ground. Once he cancelled we were given our visual approach clearance about 9-10 miles out at 11;000 feet and we set up for the straight in for Runway 28. During the Captain's approach briefing we did discuss the terrain that lies about 5 miles to the east of the runway and discussed clearing it at an appropriate altitude before descending towards the runway. Captain had the autopilot off and was visually flying the aircraft to the runway. During the descent over the terrain we received a 'Whoop; Whoop; Terrain; Terrain; Pull Up' call out that continued for approximately 10 seconds. The last time I remember looking at the PFD it showed us 1;300 feet on the radar altimeter and we were above 9;200 feet (1;000 feet above the higher of the two peaks). We both had visual contact with the terrain and when we received the alert we were already on the backside of the terrain that slopes down towards the runway and were in a position for a continued descent. Either way we proceeded to add power and began to climb away to ensure adequate separation with the terrain. Once the alerts had ceased the Captain lowered the nose and continued the descent into KHDN.I believe the reason for the alert was due to our rate of descent in close proximity to terrain. And if this was the case a more gradual descent with a maneuver or two towards the runway would have prevented this alert.

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.