# N41856: 2004 Defenbaugh Matthew GYROCYCLE ONE

- Status: Valid registration
- Airframe: [Defenbaugh Matthew GYROCYCLE ONE](https://openairdocs.org/model/defenbaugh-matthew-gyrocycle-one) (registry code 05617BG, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 0251
- Year built: 2004
- Type: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: February 29, 2004
- Certificate issued: February 13, 2004
- Expires: July 31, 2029
- Mode S code: A4F4FE
- Registered owner: [Defenbaugh Matthew J](https://openairdocs.org/faa-owner/DEFENBAUGH%20MATTHEW%20J)
- Location: [Biggsville, IL](https://openairdocs.org/faa-place/IL/Biggsville)
- Owner type: Individual
- Owner's area on the map: 40.8472° N, 90.8692° W: Placed by OpenAirDocs at the center of ZIP code 61418, 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=41856
- Page: https://openairdocs.org/aircraft/N41856

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.

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

### Matched by airframe (Defenbaugh Matthew GYROCYCLE ONE)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N41856.

## FAA accident and incident reports

None matched to N41856.

## 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 N41856

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N41856 before.

- [Cancelled 1982-08-24](https://openairdocs.org/deregistered/N41856-1982-08-24): Piper PA-28-151, S/N 28-7415337, built 1974. Owner: [Huddle Robert Et Al](https://openairdocs.org/faa-owner/HUDDLE%20ROBERT%20ET%20AL), [Harpster, OH](https://openairdocs.org/faa-place/OH/Harpster)

## Related

- Other Defenbaugh Matthew GYROCYCLE ONE aircraft: https://openairdocs.org/model/defenbaugh-matthew-gyrocycle-one/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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