Amateur-built A75N1 accident near Delevan, Wisconsin, September 3, 1993
On September 3, 1993 at about 6:30 pm local time, a amateur-built A75N1, registered N55501, was substantially damaged in an accident near Delevan, Wisconsin (Lake Lawn airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
the excessive use of brakes and rudder by the pilot-in-command. A factor related to the accident was the pilot-in-command's lack of total experience in this type of aircraft.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 3, 1993 · about 6:30 pm local time
- Place
- Delevan, Wisconsin · Lake Lawn · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built A75N1
- Registration
- N55501 · registry record · serial 75-4740
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE VINTAGE TAILWHEEL AIRPLANE TOUCHED DOWN ON RUNWAY 36 WITH A CROSSWIND. ACCORDING TO THE FRONT SEAT PILOT/PASSENGER, THE AIRPLANE BEGAN TO WEATHER VANE AS THE TAILWHEEL TOUCHED DOWN AT WHICH TIME THE REAR SEAT PILOT MADE HARD RUDDER AND BRAKE INPUTS. THE AIRPLANE NOSED OVER, DAMAGING THE VERTICAL STABILIZER AND RUDDER AND THE TOP WING'S UPPER SURFACE.
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: single-engine land; instrument: airplane
- Flight time: 3,000 hours in all; 20 in this make and model
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: rear
The aircraft
- Last inspection: annual inspection; 42 hours since
- Maximum gross weight: 3,550 lb
- Seats: 2
- Landing gear: fixed
- Engine: Continental R-670 (piston); 0 hours total
The flight
- Departed from: 0C0 Harvard IL at 6:00 pm
- Destination: C59
- Flight plan: none
- Runway 36, 4,400 ft by 75 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 340° at 10 knots
- Visibility: 12 statute miles
- Sky: broken clouds at 4,700 ft; not recorded at 4,700 ft
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
- Altimeter: 29.00 inHg
- Observation at 6:45 pm from JVL, 20 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 |
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.