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Accidents · NTSB CHI07LA238 · Final report

Amateur-built Aventura II accident near Lakewood, Wisconsin, July 28, 2007

On July 28, 2007 at about 5:47 pm local time, a amateur-built Aventura II, registered N914JS, was substantially damaged in an accident near Lakewood, Wisconsin. 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 excessive pull up, his not maintaining airspeed, and the inadvertent stall resulting in the loss of control. A factor contributing to the accident was the trees.

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

What the record shows

Date
July 28, 2007 · about 5:47 pm local time
Place
Lakewood, Wisconsin · map
Type
Accident
Injuries
1 person was killed and 1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Amateur-built Aventura II
Registration
N914JS · no longer on the register · serial AP2A0063
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

A witness said he saw the pilot make two attempts to take off from a lake. On the third attempt, the witness said the airplane pulled up sharply, leveled off momentarily , and then the left wing "dipped," and the airplane "dropped" and struck trees and then the ground. An examination of the airplane revealed no anomalies.

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

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; single-engine sea; instrument: airplane
  • Flight time: 650 hours in all
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: unk
  • Injury: fatal

The aircraft

  • Last inspection: inspection type not recorded
  • Maximum gross weight: 1,350 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Rotax 912ULS (piston); 0 hours total

The flight

  • Departed from: Lakewood WI at 5:47 pm
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 350° at 6 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 82°F (28°C), dew point 48°F (9°C)
  • Altimeter: 30.04 inHg
  • Observation at 4:54 pm from IMT, 30 miles away

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

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

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

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.