# N4447: 1945 Canadian Car & Foundry HARVARD MK IV

- Status: Valid registration
- Airframe: [Canadian Car & Foundry HARVARD MK IV](https://openairdocs.org/model/canadian-car-foundry-harvard-mk-iv) (registry code 1922828, 2 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Serial number: CCF-4-241
- Year built: 1945
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: September 8, 2005
- Certificate issued: September 16, 1991
- Expires: June 30, 2028
- Mode S code: A55CC6
- Registered owner: [American Airpower Heritage Flying Museum](https://openairdocs.org/faa-owner/AMERICAN%20AIRPOWER%20HERITAGE%20FLYING%20MUSEUM)
- Location: [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas)
- Owner type: Corporation
- Owner's area on the map: 32.7831° N, 96.8067° W: Placed by OpenAirDocs: center of Dallas, TX, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4447
- Page: https://openairdocs.org/aircraft/N4447

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 (Canadian Car & Foundry HARVARD MK IV)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (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 FTW72FPG50](https://openairdocs.org/ntsb/FTW72FPG50), Oct 9, 1971: Harvard MK IV (N4447), West Memphis, AR, substantial damage

## FAA accident and incident reports (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.

- [Incident 19901029047319I](https://openairdocs.org/incident/19901029047319I), Oct 29, 1990: Namer HARVARDMK4 (N4447), Harlingen, TX, Minor damage. Pilot ground looped on a crosswind landing rollout.

## 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 N4447

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4447 before.

- [Cancelled 1930-09-26](https://openairdocs.org/deregistered/N4447-1930-09-26): Waco GXE, S/N 1385. Owner: [Harry C Mahin](https://openairdocs.org/faa-owner/HARRY%20C%20MAHIN), [W Lafayette, IN](https://openairdocs.org/faa-place/IN/W%20Lafayette)

## Related

- Other Canadian Car & Foundry HARVARD MK IV aircraft: https://openairdocs.org/model/canadian-car-foundry-harvard-mk-iv/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.md

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