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Accidents · NTSB WPR21FA227 · Final report

Amateur-built Tri Quickie accident near Gila Bend, Arizona, June 15, 2021

On June 15, 2021 at about 3:20 pm local time, a 2004 amateur-built Tri Quickie, registered N8054Y, was destroyed in an accident during takeoff near Gila Bend, Arizona (Gila Bend Muni airport). It was a personal flight under general aviation rules (Part 91). 1 person was killed and 1 person was seriously injured. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot’s exceedance of the airplane’s critical angle of attack during the takeoff initial climb, which resulted in an aerodynamic stall and loss of airplane control. Contributing to the accident was the reduced airplane performance due to high density altitude conditions.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 15, 2021 · about 3:20 pm local time
Place
Gila Bend, Arizona · Gila Bend Muni · map
Type
Accident
Injuries
1 person was killed and 1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Amateur-built Tri Quickie, built 2004
Registration
N8054Y · registry record · serial 31569
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

The pilot had recently purchased the airplane and was flying it back to his home airport with a passenger onboard. The pilot had stopped at the accident airport the evening before the accident and refueled the airplane for departure the following day. A witness observed the accident airplane taxi to the runway hold short line, where it remained for about 20 minutes with the engine running. The witness saw the airplane depart, and about a 1/3 of the way down the 5,200-ft-long runway, observed a dirt cloud and surmised that the landing gear must have departed the runway surface. The airplane returned to the runway centerline. The witness stated that the airplane continued, and about midway down the runway, it appeared the airplane was “yanked off the runway,” and struggled to gain altitude. The witness estimated that the airplane reached an altitude of about 50 ft above ground level when it turned to the left, stalled, and impacted the ground. Using recorded weather conditions from a nearby weather reporting station, the calculated density altitude was about 3,486 ft at the time of the accident. Postaccident examination of the airframe and engine revealed no mechanical anomalies that would have precluded normal operation; however, the examination was limited due to thermal damage sustained in the post-impact fire. It is likely that the airplane’s takeoff performance was degraded by the high-density altitude conditions, which would have resulted in an increased takeoff distance and decreased climb performance. It is also likely that, after the airplane became airborne, the pilot inadvertently exceeded the airplane’s critical angle of attack, which resulted in an aerodynamic stall, loss of control and impact with the ground.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Aerodynamic stall/spin during takeoff defining event
  2. Collision with terrain or object (not controlled flight into terrain) during uncontrolled descent
  3. Runway excursion during takeoff
  4. Loss of control in flight during takeoff

The NTSB's findings

  • Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Angle of attack › Capability exceeded
  • Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Airspeed › Not attained/maintained
  • Environmental issues › Conditions/weather/phenomena › Temp/humidity/pressure › High density altitude › Effect on equipment
  • Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
  • Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Pilot

Pilot

  • Certificate: airline transport pilot, flight instructor, commercial pilot, flight engineer, remote
  • Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: instrument airplane; instrument: airplane; rotorcraft: unmanned (suas)
  • Flight time: 19,100 hours in all; 0 in this make and model
  • Medical certificate: Class 1 (with waivers/limitations)
  • Seat: left
  • Injury: serious injuries

Pilot-Rated Passenger

  • Certificate: student
  • Medical certificate: Class 3 (with waivers/limitations)
  • Seat: rgt
  • Injury: fatal

The aircraft

  • Airframe total time: 53.5 hours
  • Last inspection: condition inspection, May 4, 2021
  • Seats: 2
  • Landing gear: fixed
  • Engine: Continental O-200 (piston); 3,442 hours total
  • Fire on the ground

The flight

  • Flight plan: none
  • Runway 04/2, 5,200 ft by 75 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 120° at 4 knots
  • Visibility: 10 statute miles
  • Sky: a few clouds at 33,000 ft
  • Temperature: 93°F (34°C), dew point 43°F (6°C)
  • Altimeter: 29.81 inHg
  • Observation at 7:58 am from KGXF, 4 miles away

Weather report (METAR): METAR KGXF 151458Z 12004KT 10SM FEW330 34/06 A2981 RMK AO2A SLP079 T03370061 52014=

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

4 documents, released by the NTSB on September 29, 2023. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.