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Accidents · NTSB NYC06CA021 · Final report

Amateur-built Sonerai II LT accident near Ashland, Kentucky, October 31, 2005

On October 31, 2005 at about 3:30 pm local time, a amateur-built Sonerai II LT, registered N204WC, was substantially damaged in an accident near Ashland, Kentucky (Ahland-Boyd County Airport). It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

A loss of directional control during an emergency landing. A factor in the accident was an unlatched canopy requiring the pilot to hold it closed to maintain aircraft control.

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

What the record shows

Date
October 31, 2005 · about 3:30 pm local time
Place
Ashland, Kentucky · Ahland-Boyd County Airport · map
Type
Accident
Injuries
1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Amateur-built Sonerai II LT
Registration
N204WC · no longer on the register · serial 071795571
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot had completed construction of the amateur built airplane, and was in the process of initial flight testing. The pilot had accumulated 4 hours of total flight time in the accident airplane. Prior to the accident flight, the pilot secured the side-opening canopy by engaging three interconnected 1/4-inch pins, into three 1/4-inch mating sleeves. Except for a significant amount of friction between the pins and mating surfaces, there was no locking mechanism for the canopy. Although the pilot did not experience any difficulties during several prior flights, the canopy opened during the initial climb of the accident flight, about 500 feet agl. When the canopy opened fully, the airplane became uncontrollable. Due to airflow over the canopy, the pilot was unable to refasten the pins, and had to hold the canopy closed with his hands. The pilot was able to partially control the airplane, and perform an emergency landing on a 5,602-foot-long, 100-foot-wide, asphalt runway. During the landing, the airplane departed the left side of the runway and struck a berm.

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: single-engine land; rotorcraft: glider
  • Flight time: 320 hours in all; 4 in this make and model; 1 in the last 90 days; 1 in the last 30 days; 215 as pilot in command
  • Medical certificate: Sport Pilot
  • Injury: serious injuries

The aircraft

  • Landing gear: fixed
  • Engine: Volkswagen 1915CC (piston); 0 hours total

The flight

  • Departed from: DWU Ashland KY
  • Destination: DWU
  • Flight plan: none
  • Runway 10, 5,602 ft by 100 ft

Weather at the time

  • Light: daylight
  • Wind: from 180° at 3 knots
  • Visibility: 10 statute miles
  • Sky: broken clouds at 12,000 ft
  • Temperature: 54°F (12°C), dew point 36°F (2°C)

Injuries

FatalSeriousMinorNone
Crew1

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.