# N604: 1959 North American SNJ-6

- Status: Valid registration
- Airframe: [North American SNJ-6](https://openairdocs.org/model/north-american-snj-6) (registry code 6400422, 2 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 112204
- Year built: 1959
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: April 29, 1959
- Certificate issued: September 30, 2009
- Expires: April 30, 2028
- Mode S code: A7D61A
- Registered owner: [Moonshadow Aviation Inc](https://openairdocs.org/faa-owner/MOONSHADOW%20AVIATION%20INC)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.8187° N, 75.5062° W: Placed by OpenAirDocs at the center of ZIP code 19810, 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=604
- Page: https://openairdocs.org/aircraft/N604

From the FAA registry file of October 22, 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-6)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N604.

## FAA accident and incident reports

None matched to N604.

## Reports on N604 not matched to an aircraft (2)

They name N604, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19880401017669I](https://openairdocs.org/incident/19880401017669I), Apr 1, 1988: Beech 200BEECH (N604), Albany, NY. No gear down indication. Made a go around. Landed safely. Found a shorted switch in landing gear warning system.
- [Incident 19791212047399I](https://openairdocs.org/incident/19791212047399I), Dec 12, 1979: Beech B90 (N604), Rochester, NY. En route crew smelled smoke. Felt pressurization "bump". Compressor had seized up, overheated. Pn 126106.

## 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.

## Service difficulty reports on N604 not matched to an aircraft (1)

They name N604, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR HNAA2017092000323](https://openairdocs.org/sdr/HNAA2017092000323), Sep 16, 2017: CONNECTOR. BROKEN. SERVICE DOOR EMERGENCY LIGHT INOP. FOUND CONNECTOR ON EMERGENCY SERVICE DOOR LIGHT BROKEN. R&R CONTACT + MALE CONNECTOR IAW SWPM 20-21-00. OPS CHECK GOOD OK FOR

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other North American SNJ-6 aircraft: https://openairdocs.org/model/north-american-snj-6/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.md

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