# N5121Y: Interplane SKYBOY UL

- Status: Valid registration
- Airframe: [Interplane SKYBOY UL](https://openairdocs.org/model/interplane-skyboy-ul) (registry code 05902K3, 2 seats)
- Engine: [Rotax 582UL](https://openairdocs.org/engine/rotax-582ul) (registry code 55558)
- Serial number: 50/2002
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: January 26, 2008
- Certificate issued: October 6, 2022
- Expires: October 31, 2029
- Mode S code: A66B6F
- Registered owners: [Duncan John S](https://openairdocs.org/faa-owner/DUNCAN%20JOHN%20S), [Duncan Rose A](https://openairdocs.org/faa-owner/DUNCAN%20ROSE%20A)
- Location: [Maple, NC](https://openairdocs.org/faa-place/NC/Maple)
- Owner type: Co-owned
- Owner's area on the map: 36.4000° N, 76.0011° W: Placed by OpenAirDocs at the center of ZIP code 27956, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5121Y
- Page: https://openairdocs.org/aircraft/N5121Y

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 (Interplane SKYBOY UL)

None in force.

### Matched by engine (Rotax 582UL)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N5121Y.

## FAA accident and incident reports

None matched to N5121Y.

## 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 N5121Y

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N5121Y before.

- [Cancelled 1981-10-15](https://openairdocs.org/deregistered/N5121Y-1981-10-15): Piper PA-23-250, S/N 272153. Owner: [Christian Pilots Assn Miami Wing Inc](https://openairdocs.org/faa-owner/CHRISTIAN%20PILOTS%20ASSN%20MIAMI%20WING%20INC), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami)

## Related

- Other Interplane SKYBOY UL aircraft: https://openairdocs.org/model/interplane-skyboy-ul/aircraft.md
- The Rotax 582UL engine: https://openairdocs.org/engine/rotax-582ul.md

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