# N4251X: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 2
- Last cancelled: February 23, 2011
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4251X
- Page: https://openairdocs.org/aircraft/N4251X

## Aircraft that carried N4251X

- [Cancelled 2011-02-23](https://openairdocs.org/deregistered/N4251X-2011-02-23): Thompson Eldon L KR 1, S/N 4934. Assigned (non-type certificated), pending cancellation
- [Cancelled 1992-06-10](https://openairdocs.org/deregistered/N4251X-1992-06-10): Rockwell International S-2R, S/N 2033R. Triennial form not returned. Owner: [Ruhe Sales Inc](https://openairdocs.org/faa-owner/RUHE%20SALES%20INC), [Leipsic, OH](https://openairdocs.org/faa-place/OH/Leipsic)

## NTSB investigations on N4251X (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 FTW79FRJ20](https://openairdocs.org/ntsb/FTW79FRJ20), Aug 15, 1979: Rockwell S-2R (N4251X), Waterproof, LA, destroyed, 1 fatal

## FAA accident and incident reports on N4251X (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 19790815021999A](https://openairdocs.org/incident/19790815021999A), Aug 15, 1979: Ayres S2R (N4251X), Waterproof, LA, Destroyed. Witness saw the ag aircraft make a steep pull-up and descended to the ground in a steep dive.

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