# N4129B: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: August 16, 2012
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4129B
- Page: https://openairdocs.org/aircraft/N4129B

## Aircraft that carried N4129B

- [Cancelled 2012-08-16](https://openairdocs.org/deregistered/N4129B-2012-08-16): Aero Commander 520, S/N 520-33, built 1952. Sale reported, pending cancellation. Owner: [Xxx, OK](https://openairdocs.org/faa-place/OK/Xxx)

## NTSB investigations on N4129B (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 FTW69F0278](https://openairdocs.org/ntsb/FTW69F0278), Nov 16, 1968: Aero Comdr 520 (N4129B), Dallas, TX, substantial damage

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