# N424DM: 1941 North American HARVARD MKII

- Status: Valid registration
- Airframe: [North American HARVARD MKII](https://openairdocs.org/model/north-american-harvard-mkii) (registry code 6400442, 2 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: 2583
- Year built: 1941
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: March 31, 1989
- Certificate issued: March 13, 2018
- Expires: March 31, 2028
- Mode S code: A50AD2
- Registered owner: [National Wings And Armor Foundation](https://openairdocs.org/faa-owner/NATIONAL%20WINGS%20AND%20ARMOR%20FOUNDATION)
- Location: [Battle Ground, WA](https://openairdocs.org/faa-place/WA/Battle%20Ground)
- Owner type: Corporation
- Owner's area on the map: 45.8058° N, 122.5108° W: Placed by OpenAirDocs at the center of ZIP code 98604, 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=424DM
- Page: https://openairdocs.org/aircraft/N424DM

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 HARVARD MKII)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N424DM.

## FAA accident and incident reports

None matched to N424DM.

## 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 HARVARD MKII aircraft: https://openairdocs.org/model/north-american-harvard-mkii/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.md

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