The U.S. aircraft register, updated daily
Accidents · NTSB CEN20LA436 · Final report

Piper J3 accident near Hartford, Wisconsin, August 30, 2020

On August 30, 2020 at about 10:30 pm local time, a 1946 Piper J3, registered N88204, was substantially damaged in an accident during taxi near Hartford, Wisconsin (Hartford Municipal Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot’s loss of situation awareness which resulted in landing in a grass area and the subsequent collision with a runway marker.

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

What the record shows

Date
August 30, 2020 · about 10:30 pm local time
Place
Hartford, Wisconsin · Hartford Municipal Airport · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Piper J3, built 1946 · all J3s on the register
Registration
N88204 · registry record · serial 15821
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot planned a personal flight to a nearby airport that had recently added new runways. Before the flight, his flight instructor sent him an airport diagram with the new grass runway marked, which was parallel to an asphalt runway. After the pilot reviewed the diagram, he thought he knew where to expect the new grass runway. While in the traffic pattern at the destination airport, the pilot noticed a large open grass space below him, so he landed the airplane. The pilot landed to the east but thought he had landed to the west. The area that he landed on was not the grass runway; while completing a fast taxi, the airplane collided with a runway marker for the north-south runway. The airplane sustained substantial damage to the fuselage and left wing spar.

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. Ground collision during taxi defining event
  2. Wrong surface or wrong airport during taxi

The NTSB's findings

  • Personnel issues › Action/decision › Info processing/decision › Identification/recognition › Pilot
  • Environmental issues › Physical environment › Object/animal/substance › Sign/marker › Decision related to condition

Pilot

  • Certificate: sport pilot
  • Ratings: single-engine land
  • Flight time: 63.2 hours in all; 45.2 in this make and model; 16.9 in the last 90 days; 5 in the last 30 days; 10.9 as pilot in command
  • Last flight review: July 14, 2020
  • Medical certificate: Sport Pilot
  • Seat: rear
  • Injury: no injuries

The aircraft

  • Airframe total time: 3,880 hours
  • Last inspection: annual inspection, May 15, 2020; 15 hours since
  • Maximum gross weight: 1,220 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Continental C90-12F (piston); 2,074 hours total

The flight

  • Departed from: ETB Westbend WI at 10:15 pm
  • Flight plan: none
  • Runway 09, 2,000 ft by 200 ft

Weather at the time

  • Light: dusk
  • Wind: from 100° at 6 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 64°F (18°C), dew point 52°F (11°C)
  • Altimeter: 29.89 inHg
  • Observation at 5:35 pm from KETB

Injuries

FatalSeriousMinorNone
Flight crew1

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

3 documents, released by the NTSB on July 2, 2021. 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.