# N4291A: 2024 Nishan Hossepian CALIDUS

- Status: Valid registration
- Airframe: [Nishan Hossepian CALIDUS](https://openairdocs.org/model/nishan-hossepian-calidus) (registry code 05642GV, 2 seats)
- Engine: [Rotax 914UL](https://openairdocs.org/engine/rotax-914ul) (registry code 55553)
- Serial number: C00572
- Year built: 2024
- Type: Gyroplane
- Engine type: 4 cycle
- Kit: Autogyro Gmbh CALIDUS
- Airworthiness: Experimental, amateur built
- Airworthiness date: May 3, 2024
- Certificate issued: April 29, 2024
- Expires: April 30, 2031
- Mode S code: A51F8A
- Registered owner: [Hossepian Nishan D](https://openairdocs.org/faa-owner/HOSSEPIAN%20NISHAN%20D)
- Location: [Grants Pass, OR](https://openairdocs.org/faa-place/OR/Grants%20Pass)
- Owner type: Individual
- Owner's area on the map: 42.5356° N, 123.3384° W: Placed by OpenAirDocs at the center of ZIP code 97526, 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=4291A
- Page: https://openairdocs.org/aircraft/N4291A

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 (Nishan Hossepian CALIDUS)

None in force.

### Matched by engine (Rotax 914UL)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N4291A.

## FAA accident and incident reports

None matched to N4291A.

## 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 N4291A

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N4291A before.

- [Cancelled 2012-11-21](https://openairdocs.org/deregistered/N4291A-2012-11-21): Piper L-21A, S/N 18-923. Registration expired, pending cancellation. Owner: [Lewis A Wilson Technical Center](https://openairdocs.org/faa-owner/LEWIS%20A%20WILSON%20TECHNICAL%20CENTER), [Deer Park, NY](https://openairdocs.org/faa-place/NY/Deer%20Park)

## Related

- Other Nishan Hossepian CALIDUS aircraft: https://openairdocs.org/model/nishan-hossepian-calidus/aircraft.md
- The Rotax 914UL engine: https://openairdocs.org/engine/rotax-914ul.md

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