# N4231A: 1992 Shuman D J/Shuman D A CHALLENGER

- Status: Valid registration
- Airframe: [Shuman D J/Shuman D A CHALLENGER](https://openairdocs.org/model/shuman-d-j-shuman-d-a-challenger) (registry code 05676PT, 2 seats)
- Engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050)
- Serial number: CH 20569
- Year built: 1992
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 3, 1992
- Certificate issued: July 8, 1991
- Expires: January 31, 2028
- Mode S code: A50940
- Registered owners: [Shuman Donald J](https://openairdocs.org/faa-owner/SHUMAN%20DONALD%20J), [Shuman Deborah A](https://openairdocs.org/faa-owner/SHUMAN%20DEBORAH%20A)
- Location: [Mauston, WI](https://openairdocs.org/faa-place/WI/Mauston)
- Owner type: Co-owned
- Owner's area on the map: 43.7766° N, 90.0402° W: Placed by OpenAirDocs at the center of ZIP code 53948, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4231A
- Page: https://openairdocs.org/aircraft/N4231A

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Shuman D J/Shuman D A CHALLENGER)

None in force.

### Matched by engine (Bombardier ROTAX (ALL))

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4231A.

## NTSB investigations on N4231A not matched to an aircraft (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB MKC77DCA14](https://openairdocs.org/ntsb/MKC77DCA14), Mar 30, 1977: Bell 47D-1 (N4231A), Dexter, MO, substantial damage

## FAA accident and incident reports

None matched to N4231A.

## Reports on N4231A not matched to an aircraft (1)

They name N4231A, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Accident 19770330006949A](https://openairdocs.org/incident/19770330006949A), Mar 30, 1977: Bell 47D1 (N4231A), Dexter, KS, Substantial damage. Helicopter tail caught wire when flying under high lines during spraying operation

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Shuman D J/Shuman D A CHALLENGER aircraft: https://openairdocs.org/model/shuman-d-j-shuman-d-a-challenger/aircraft.md
- The Bombardier ROTAX (ALL) engine: https://openairdocs.org/engine/bombardier-rotax-all.md

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