# N7553U: 1952 North American HARVARD 4

- Status: Valid registration
- Airframe: [North American HARVARD 4](https://openairdocs.org/model/north-american-harvard-4) (registry code 6400430, 2 seats)
- Engine: [Pratt & Whitney R-1830 series](https://openairdocs.org/engine/pratt-whitney-r-1830-series) (registry code 52020)
- Serial number: 20365
- Year built: 1952
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: March 20, 1980
- Certificate issued: August 13, 2015
- Expires: August 31, 2028
- Mode S code: AA2F70
- Registered owner: [Fast Toys For Boys Ltd](https://openairdocs.org/faa-owner/FAST%20TOYS%20FOR%20BOYS%20LTD)
- Location: [Wenatchee, WA](https://openairdocs.org/faa-place/WA/Wenatchee)
- Owner type: Corporation
- Owner's area on the map: 47.4320° N, 120.3455° W: Placed by OpenAirDocs at the center of ZIP code 98801, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=7553U
- Page: https://openairdocs.org/aircraft/N7553U

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 R-1830 model are included.

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

### Matched by airframe (North American HARVARD 4)

None in force.

### Matched by engine (Pratt & Whitney R-1830 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N7553U.

## FAA accident and incident reports

None matched to N7553U.

## 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 4 aircraft: https://openairdocs.org/model/north-american-harvard-4/aircraft.md
- The Pratt & Whitney R-1830 series engine: https://openairdocs.org/engine/pratt-whitney-r-1830-series.md

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