Amateur-built Twin accident near Unionville, Tennessee, July 28, 2021
On July 28, 2021, a 2007 amateur-built Twin (weight-shift aircraft), registered N327TT, was substantially damaged in an accident during landing (landing roll) near Unionville, Tennessee. It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured and 1 person had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The loss of directional control during a precautionary landing, which resulted in a collision with a fence post.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 28, 2021
- Place
- Unionville, Tennessee · map
- Type
- Accident
- Injuries
- 1 person was seriously injured and 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built Twin, built 2007
- Registration
- N327TT · registry record · serial 17092
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
According to the pilot, during climb out, the engine of the weight-shift control aircraft momentarily lost all power. After leveling off, the engine regained power, and he performed a precautionary landing in a field. The landing was uneventful, but when he applied the brakes, he mistakenly applied the foot throttle. The aircraft accelerated, and he lost directional control. The aircraft impacted a fence post and sustained substantial damage to the airframe. An examination of the engine did not reveal the source of the momentary loss of engine power.
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
- Loss of control on ground during landing (landing roll) defining event
The NTSB's findings
- Personnel issues › Action/decision › Action › Incorrect action selection › Pilot
- Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
- Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 2,000 hours in all; 1,800 in this make and model; 5 in the last 90 days; 5 in the last 30 days; 2,000 as pilot in command
- Medical certificate: None
- Seat: rear
- Injury: serious injuries
Passenger
- Seat: frt
- Injury: minor injuries
The aircraft
- Airframe total time: 100 hours
- Last inspection: condition inspection, July 27, 2021; 0.5 hours since
- Maximum gross weight: 851 lb
- Seats: 2
- Landing gear: fixed
- Engine: Rotax 583 (piston); 15 hours total
The flight
- Departed from: Unionville TN
- Flight plan: none
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 040° at 5 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 84°F (29°C), dew point 77°F (25°C)
- Altimeter: 30.04 inHg
- Observation at 3:35 pm from LUG, 30 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
5 documents, released by the NTSB on July 6, 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.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 | PDF, 11 pages | View Download |
| 2 | Memorandum for Record A�� Telephone Interview, Pilot | PDF, 1 page | View Download |
| 3 | Memorandum for Record - FAA Email Summary | PDF, 1 page | View Download |
| 4 | Memorandum for Record - Engine Examination | PDF, 1 page | View Download |
| 5 | Photos | PDF, 2 pages | View Download |
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.