# N6423D: 1941 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: 88-13519
- Year built: 1941
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: March 14, 1996
- Certificate issued: February 24, 2012
- Expires: February 29, 2028
- Mode S code: A86F6E
- Registered owner: [Tennessee Flying Machines LLC](https://openairdocs.org/faa-owner/TENNESSEE%20FLYING%20MACHINES%20LLC)
- Location: [Nashville, TN](https://openairdocs.org/faa-place/TN/Nashville)
- Owner type: LLC
- Owner's area on the map: 36.1066° N, 86.7746° W: Placed by OpenAirDocs at the center of ZIP code 37204, 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=6423D
- Page: https://openairdocs.org/aircraft/N6423D

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 N6423D.

## FAA accident and incident reports

None matched to N6423D.

## 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.

## 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.