# N416C: Grumman HU-16C

- Status: Valid registration
- Airframe: [Grumman HU-16C](https://openairdocs.org/model/grumman-hu-16c) (registry code 3950411, 8 seats)
- Engine: [Wright R-1820 series](https://openairdocs.org/engine/wright-r-1820-series) (registry code 67020)
- Serial number: 131911
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: September 8, 1989
- Certificate issued: March 22, 2017
- Expires: March 31, 2030
- Mode S code: A4EA9C
- Registered owners: [Hunt Lynn C](https://openairdocs.org/faa-owner/HUNT%20LYNN%20C), [Dewitt David B](https://openairdocs.org/faa-owner/DEWITT%20DAVID%20B)
- Location: [Windsor, CA](https://openairdocs.org/faa-place/CA/Windsor)
- Owner type: Partnership
- Owner's area on the map: 38.5305° N, 122.8118° W: Placed by OpenAirDocs at the center of ZIP code 95492, 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=416C
- Page: https://openairdocs.org/aircraft/N416C

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-16C)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N416C.

## FAA accident and incident reports

None matched to N416C.

## 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 N416C

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N416C before.

- [Cancelled 1975-09-22](https://openairdocs.org/deregistered/N416C-1975-09-22): Stinson 108-2, S/N 108-3416, built 1947. Exported to Canada. Owner: [Patch Max D](https://openairdocs.org/faa-owner/PATCH%20MAX%20D), [Waldo, OH](https://openairdocs.org/faa-place/OH/Waldo)

## Related

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

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