# N6129U: 2002 Airborne Australia REDBACK

- Status: Valid registration
- Airframe: [Airborne Australia REDBACK](https://openairdocs.org/model/airborne-australia-redback) (registry code 05903BB, 2 seats)
- Engine: [Rotax 503 series](https://openairdocs.org/engine/rotax-503-series) (registry code 55564)
- Serial number: 503-770
- Year built: 2002
- Type: Weight-shift-control
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: October 19, 2007
- Certificate issued: December 31, 2022
- Expires: December 31, 2029
- Mode S code: A7F9D2
- Registered owner: [Cambra Steven](https://openairdocs.org/faa-owner/CAMBRA%20STEVEN)
- Location: [Nashua, NH](https://openairdocs.org/faa-place/NH/Nashua)
- Owner type: Individual
- Owner's area on the map: 42.7223° N, 71.5012° W: Placed by OpenAirDocs at the center of ZIP code 03062, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6129U
- Page: https://openairdocs.org/aircraft/N6129U

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 503 model are included.

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

### Matched by airframe (Airborne Australia REDBACK)

None in force.

### Matched by engine (Rotax 503 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N6129U.

## FAA accident and incident reports

None matched to N6129U.

## 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 N6129U

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N6129U before.

- [Cancelled 1996-09-18](https://openairdocs.org/deregistered/N6129U-1996-09-18): Air Tractor AT-502B, S/N 502B0367. Exported to Australia. Owner: [Air Tractor Inc](https://openairdocs.org/faa-owner/AIR%20TRACTOR%20INC), [Olney, TX](https://openairdocs.org/faa-place/TX/Olney)
- [Cancelled 1992-07-21](https://openairdocs.org/deregistered/N6129U-1992-07-21): White 1, S/N 74261. Triennial form not returned. Owner: [White William T](https://openairdocs.org/faa-owner/WHITE%20WILLIAM%20T), [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas)

## Related

- Other Airborne Australia REDBACK aircraft: https://openairdocs.org/model/airborne-australia-redback/aircraft.md
- The Rotax 503 series engine: https://openairdocs.org/engine/rotax-503-series.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.