North Wing Uum SPORT X2-N N366DN

Summary

On 30 April 2017 at about 15:00 local time, a North Wing Uum SPORT X2-N registered N366DN was involved in an accident near Boulder City, Nevada, United States. 2 people were on board and 2 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

30 April 2017 at 15:00

Classification

Accident

Location

Boulder City, Nevada, United States

Coordinates

35.8667, -114.9439

Aircraft

North Wing Uum SPORT X2-N

Registration

N366DN

Year built

2008

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Boulder City → Boulder City

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

GAA17CA250

2 people had minor injuries.

The student pilot’s exceedance of the weight-shift-control aircraft’s critical angle of attack and the flight instructor’s delayed remedial action and failure to maintain the proper airspeed after encountering localized turbulence during approach, which resulted in an aerodynamic stall.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The student pilot of the weight-shift-control aircraft reported that, while practicing touch-and-go landings on a dried lake bed, the flight instructor was controlling the throttle inputs, and she "controlled the wing." She added that, just before the accident, she observed three dust devils to the east and that, during a final pass near the north end of the lake bed, they came upon "strong localized turbulence." The aircraft impacted the ground and rolled to the left. The flight instructor reported that, during the turbulence encounter "about 4-6 ft" above the ground, the "wing stalled," which resulted in a "hard nose wheel landing." The weight-shift-control aircraft sustained substantial damage to both wings. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the weigh-shift-control aircraft that would have precluded normal operation. The flight instructor reported that the wind was light and variable and that the temperature was 70°F at the accident location. A review of recorded data from the automated weather observation station located about 6 miles northeast of the accident site reported that, about the time of the accident, the wind was calm, and the temperature was 64°F.

Quoted verbatim from the NTSB record.