Casualties unknown

Ultralight Collides with Power Lines After Crossing Dam (UNREG)

Granby, CO, US

On July 7, 1984, an Eipper QUICKSILVER MXL (registration UNREG) operated by 12 was involved in an aviation accident near Granby, CO. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

A pilot flying at low altitude over a lake pulled up to cross a dam, then descended into unmarked power lines about 135 ft above terrain, causing the ultralight to flip and crash.

Accident Details

A pilot was flying an ultralight vehicle at low altitude over a lake. To cross a dam, the pilot pulled up. After crossing the dam, the pilot began to descend. The ultralight then collided with power lines on the down river side of the dam. The power lines were approximately 135 feet above the terrain on that side of the dam.

Post-Impact Sequence

After hitting the power lines, the vehicle flipped upside down and impacted the ground with full power.

Wreckage Examination

An examination of the wreckage revealed evidence that the pilot attempted to deploy the parachute attached to the airframe.

Power Line Visibility

The power lines were not marked and would have been hard to see with the terrain features in the background.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X40301. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.