# N226GR: 1954 Grumman HU 16E

- Status: Valid registration
- Airframe: [Grumman HU 16E](https://openairdocs.org/model/grumman-hu-16e) (registry code 3950414, 8 seats)
- Engine: [Wright R-1820 series](https://openairdocs.org/engine/wright-r-1820-series) (registry code 67020)
- Data sheets: [TCDS A33SO](https://openairdocs.org/tcds/A33SO) (Amphibian Aerospace Industries Defense, Inc., a Delaware corporation (Delaware file no. 10288788), c/o Dunlap Bennett & Ludwig, PLLC) (OpenAirDocs)
- Serial number: 2132
- Year built: 1954
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: October 17, 2002
- Certificate issued: August 9, 2022
- Expires: August 31, 2029
- Mode S code: A1F7F1
- Registered owner: [De Geus Michael A](https://openairdocs.org/faa-owner/DE%20GEUS%20MICHAEL%20A)
- Location: [Warrenton, VA](https://openairdocs.org/faa-place/VA/Warrenton)
- Owner type: Individual
- Owner's area on the map: 38.7197° N, 77.7299° W: Placed by OpenAirDocs at the center of ZIP code 20187, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=226GR
- Page: https://openairdocs.org/aircraft/N226GR

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 Wright R-1820 model are included.

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

### Matched by airframe (Grumman HU 16E)

None in force.

### Matched by engine (Wright R-1820 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N226GR.

## FAA accident and incident reports

None matched to N226GR.

## 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) (1)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Grumman HU 16E)

- [STC SA02511SE](https://openairdocs.org/stc/SA02511SE): Installation of replacement fuel quantity indicator sending unit(s). CiES Inc

## Related

- Other Grumman HU 16E aircraft: https://openairdocs.org/model/grumman-hu-16e/aircraft.md
- The Wright R-1820 series engine: https://openairdocs.org/engine/wright-r-1820-series.md

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