# N51428: 1957 North American SNJ-4

- Status: Valid registration
- Airframe: [North American SNJ-4](https://openairdocs.org/model/north-american-snj-4) (registry code 6400414, 2 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 88-13891
- Year built: 1957
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: February 5, 1958
- Certificate issued: July 18, 2013
- Expires: July 31, 2029
- Mode S code: A6730A
- Registered owner: [Mach 25 Aviation LLC](https://openairdocs.org/faa-owner/MACH%2025%20AVIATION%20LLC)
- Location: [Hudson, WI](https://openairdocs.org/faa-place/WI/Hudson)
- Owner type: LLC
- Owner's area on the map: 44.9812° N, 92.6948° W: Placed by OpenAirDocs at the center of ZIP code 54016, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=51428
- Page: https://openairdocs.org/aircraft/N51428

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 Pratt & Whitney R1340 model are included.

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

### Matched by airframe (North American SNJ-4)

None in force.

### Matched by engine (Pratt & Whitney R1340 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N51428.

## FAA accident and incident reports

None matched to N51428.

## 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 N51428

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N51428 before.

- [Cancelled 1948-11-18](https://openairdocs.org/deregistered/N51428-1948-11-18): Aeronca 0-58B, S/N 1032. Owner: [Prince Graham](https://openairdocs.org/faa-owner/PRINCE%20GRAHAM), [Detroit, MI](https://openairdocs.org/faa-place/MI/Detroit)

## Related

- Other North American SNJ-4 aircraft: https://openairdocs.org/model/north-american-snj-4/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-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.