# N221SA: 1998 Ayers Steven D RV-6A

- Status: Valid registration
- Airframe: [Ayers Steven D RV-6A](https://openairdocs.org/model/ayers-steven-d-rv-6a) (registry code 05608QL, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 23147
- Year built: 1998
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 7, 1998
- Certificate issued: February 26, 2018
- Expires: February 29, 2028
- Mode S code: A1E649
- Registered owner: [Cox Frank D](https://openairdocs.org/faa-owner/COX%20FRANK%20D)
- Location: [Sioux Falls, SD](https://openairdocs.org/faa-place/SD/Sioux%20Falls)
- Owner type: Individual
- Owner's area on the map: 43.5444° N, 96.6378° W: Placed by OpenAirDocs at the center of ZIP code 57110, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=221SA
- Page: https://openairdocs.org/aircraft/N221SA

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 (Ayers Steven D RV-6A)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (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 ATL03CA105](https://openairdocs.org/ntsb/ATL03CA105), Jun 11, 2003: Ayers RV-6A (N221SA), St. Simons Isld, GA, substantial damage. Probable cause: The pilot's inadequate preflight inspection that resulted in his failure to remove the seatbelt (flight control gust lock) from the right side flight control stick.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20030611018109A](https://openairdocs.org/incident/20030611018109A), Jun 11, 2003: Amtr RV6A (N221SA), Brunswick, GA, Substantial damage. (-23) On June 11, 2003 at approximately 1242 EDT, a steven d. ayers experimental RV-6A aircraft crashed during take-off from runway 22 at the saint simons…

## 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 N221SA

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N221SA before.

- [Cancelled 1993-12-30](https://openairdocs.org/deregistered/N221SA-1993-12-30): Sikorsky S-76, S/N 760177. Exported to Canada. Owner: [Glenhaven Corporation](https://openairdocs.org/faa-owner/GLENHAVEN%20CORPORATION), [Mckinney, TX](https://openairdocs.org/faa-place/TX/Mckinney)

## Related

- Other Ayers Steven D RV-6A aircraft: https://openairdocs.org/model/ayers-steven-d-rv-6a/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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