# N18520: Porterfield 35W

- Status: Valid registration
- Airframe: [Porterfield 35W](https://openairdocs.org/model/porterfield-35w) (registry code 6480108, 2 seats)
- Engine: [Warner SCA JR series](https://openairdocs.org/engine/warner-sca-jr-series) (registry code 64501)
- Serial number: 310
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: June 14, 2023
- Expires: June 30, 2030
- Mode S code: A155F6
- Registered owner: [Kubichek Janet C](https://openairdocs.org/faa-owner/KUBICHEK%20JANET%20C)
- Location: [Winnemucca, NV](https://openairdocs.org/faa-place/NV/Winnemucca)
- Owner type: Individual
- Owner's area on the map: 41.1211° N, 118.0085° W: Placed by OpenAirDocs at the center of ZIP code 89445, within about 30 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18520
- Page: https://openairdocs.org/aircraft/N18520

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 Warner SCA JR model are included.

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

### Matched by airframe (Porterfield 35W)

None in force.

### Matched by engine (Warner SCA JR series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX81FVG01](https://openairdocs.org/ntsb/LAX81FVG01), Oct 18, 1980: Porterfield 35W (N18520), Citrus Heights, CA, destroyed, 2 fatal

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19801018057649A](https://openairdocs.org/incident/19801018057649A), Oct 18, 1980: Norwst 35WPORTFLD (N18520), Citrus Heights, CA, Destroyed, 1 fatal. Stunt flying at low altitude over city. Stalled, went into a spin. No recovery attempt observed.

## 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.

## Related

- Other Porterfield 35W aircraft: https://openairdocs.org/model/porterfield-35w/aircraft.md
- The Warner SCA JR series engine: https://openairdocs.org/engine/warner-sca-jr-series.md

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