Amateur-built Challenger II N77YD accident near Draper, Utah

Jul 19, 2019 · NTSB number WPR19LA192 · Final report

Probable cause

The total loss of engine power for reasons that could not be determined based on available evidence.

NTSB analysis

The pilot reported that during cruise flight, about 800 to 1,000 ft above ground level, he advanced the throttle and the engine immediately lost power. The pilot’s attempt to restart the engine was unsuccessful and he initiated a forced landing to a nearby tree-lined residential road. During the landing sequence, the airplane struck trees and came to rest upright against a fire hydrant.

Postaccident examination of the airplane and engine revealed no evidence of any preexisting mechanical malfunction that would have precluded normal operation. The engine was successfully run on the airframe at various power settings with no anomalies noted. The reason for the loss of engine power could not be determined based on available evidence.

Text from the NTSB. Open the NTSB docket for WPR19LA192 for the full record.

Event

Date
Jul 19, 2019
Type
Accident
Place
Draper, Utah
Highest injury
None
Weather
Visual (VMC)
Light
Day

Amateur-built Challenger II

N-number
N77YD
Category
Airplane
Year built
2018
Damage
Substantial
Operating rule
Part 91 (general aviation)
Purpose of flight
Personal

From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.