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Accidents · NTSB CHI97LA234 · Final report

Amateur-built DEFIANT accident near Alma, Michigan, August 2, 1997

On August 2, 1997 at about 7:45 pm local time, a amateur-built DEFIANT, registered N20SR, was destroyed in an accident near Alma, Michigan. It was a personal flight under general aviation rules (Part 91). 2 people had minor injuries; 1 other was unhurt. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

the pilot did not perform an adequate preflight check and he did not perform the takeoff checklist. Factors included the pilot's inadequate design of the safety latch and the canopy inadvertently deploying.

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

What the record shows

Date
August 2, 1997 · about 7:45 pm local time
Place
Alma, Michigan · map
Type
Accident
Injuries
2 people had minor injuries; 1 other was unhurt.
Weather
visual conditions (good weather)
Aircraft
Amateur-built DEFIANT
Registration
N20SR · registry record · serial 0087
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot reported the aircraft climbed out normally until it reached 500 feet above ground level and then the canopy opened. The pilot loosened his shoulder harness in order to pull down the canopy. One of the passengers tried to hold the canopy closed while the pilot flew the airplane, but was unable to keep it closed. The canopy came open again and the pilot chose to execute an emergency landing into an old clearing which was surrounded by forest. During impact, the pilot was knocked unconscious, and one of the two passengers received minor injuries. The two passengers pulled the pilot from the airplane. He reported that he had not ensured that the canopy was properly latched, and the safety latch was not fully engaged when he had departed. The safety latch used on the airplane was not the safely latched specified by the designer of the airplane. The pilot reported he made four mistakes; they were: 'not fixing the headrest thinking that it was only a piece of loose foam, omitting the checklist for the final flight, omitting checking the latch, and when I changed Burt's [Rutan] safety latch system not coming up with a design that was better.'

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: private
  • Ratings: multi-engine land; single-engine land
  • Flight time: 500 hours in all; 100 in this make and model; 33 in the last 90 days; 25 in the last 30 days; 450 as pilot in command
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 100 hours
  • Last inspection: annual inspection, June 28, 1997; 20 hours since
  • Maximum gross weight: 3,000 lb
  • Seats: 4
  • Landing gear: retractable
  • Engine: Lycoming O-320-DG2 (piston); 0 hours total
  • Fire on the ground

The flight

  • Departed from: AMN at 7:45 pm
  • Destination: SLK Saranac Lake NY
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 260° at 12 knots, gusting 16
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 86°F (30°C), dew point 82°F (28°C)
  • Altimeter: 29.00 inHg
  • Observation at 7:55 pm from AMN

Injuries

FatalSeriousMinorNone
Crew1
Passengers11

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.