# N831D: 2021 Aeropro CZ S R O A240

- Status: Valid registration
- Airframe: [Aeropro CZ S R O A240](https://openairdocs.org/model/aeropro-cz-s-r-o-a240) (registry code 060006U, 2 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: 61721
- Year built: 2021
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Light sport, airplane
- Airworthiness date: June 18, 2021
- Certificate issued: September 21, 2021
- Expires: September 30, 2028
- Mode S code: AB5C5C
- Registered owner: [Danford Robert Neil](https://openairdocs.org/faa-owner/DANFORD%20ROBERT%20NEIL)
- Location: [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell)
- Owner type: Individual
- Owner's area on the map: 48.2306° N, 114.4033° W: Placed by OpenAirDocs at the center of ZIP code 59901, within about 12 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=831D
- Page: https://openairdocs.org/aircraft/N831D

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. The registry lists only the engine series, so ADs for every Rotax 912ULS model are included.

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

### Matched by airframe (Aeropro CZ S R O A240)

None in force.

### Matched by engine (Rotax 912ULS series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N831D.

## FAA accident and incident reports

None matched to N831D.

## 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.

## Earlier aircraft with N831D

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N831D before.

- [Cancelled 2015-05-11](https://openairdocs.org/deregistered/N831D-2015-05-11): Beech 95-C55, S/N TE-62, built 1966. Sale reported, canceled. Owner: [Colleyville, TX](https://openairdocs.org/faa-place/TX/Colleyville)
- [Cancelled 1964-10-14](https://openairdocs.org/deregistered/N831D-1964-10-14): Douglas DC-7B, S/N 45340. Owner: [Carlotte Aircraft Corp](https://openairdocs.org/faa-owner/CARLOTTE%20AIRCRAFT%20CORP), [Charlotte, NC](https://openairdocs.org/faa-place/NC/Charlotte)

## Related

- Other Aeropro CZ S R O A240 aircraft: https://openairdocs.org/model/aeropro-cz-s-r-o-a240/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.md

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