Helicopter Collision with Power Line in Marginal Weather (N99TV)

Incident Overview and Location Details A helicopter was operating a corporate flight through a canyon when it collided with the static portion of a power transmission line and crashed. The accident occurred at a location where a 2,554-foot span of the power line crossed the South Platte River. The power line had a mean height above the terrain of less than 150 feet. ## Marking Status and Pilot Awareness The power line was not marked, and it was not required to be marked. However, spherical markers had already been scheduled for installation on this span. According to local media reports, the pilot of N99TV was familiar with the area and was aware of the power line. ## Witness Accounts and Weather Conditions The nearest witness, located about 1-1/2 miles from the crash site, saw the helicopter pass overhead before it crashed. This witness reported reduced visibility in the area with light rain. Hikers in the area reported rain, hail, high winds, and reduced visibility, with mountain tops obscured.