Amateur-built CHALLENGER II accident near Plymouth, Wisconsin, August 21, 1993
On August 21, 1993 at about 8:45 pm local time, a amateur-built CHALLENGER II, registered N771RH, was substantially damaged in an accident near Plymouth, Wisconsin. 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 loss of engine power for undetermined reason(s).
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 21, 1993 · about 8:45 pm local time
- Place
- Plymouth, Wisconsin · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built CHALLENGER II CHALLENGER
- Registration
- N771RH · registry record · serial CH20487B246
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE HOMEBUILT AIRPLANE SUSTAINED A LOSS OF ENGINE POWER DURING A CLIMB AFTER DEPARTURE. THE PILOT CONDUCTED A FORCED LANDING IN A CROP FIELD WHERE THE AIRPLANE WAS DAMAGED DURING THE LANDING. A POST ACCIDENT EXAMINATION OF THE AIRPLANE FAILED TO REVEAL ANY PRE-EXISTING ANOMALIES WHICH WOULD HAVE CONTRIBUTED TO THE LOSS OF ENGINE POWER.
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
- Flight time: 97 hours in all; 19 in this make and model; 8 in the last 90 days; 2 in the last 30 days; 41 as pilot in command
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 431 hours
- Last inspection: inspection type not recorded, May 5, 1992; 32 hours since
- Maximum gross weight: 800 lb
- Seats: 2
- Landing gear: fixed
- Engine: Bombardier ROTAX 503 (piston); 0 hours total
The flight
- Destination: 8D1 New Holstein WI
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: scat
- Temperature: 75°F (24°C), dew point 0°F (-18°C)
- Altimeter: 30.00 inHg
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.