# N809W: Sikorsky S-39-C

- Status: Valid registration
- Airframe: [Sikorsky S-39-C](https://openairdocs.org/model/sikorsky-s-39-c) (registry code 8140504, 5 seats)
- Data sheets: [TCDS TC 2-391](https://openairdocs.org/tcds/TC%202-391) (Sikorsky Aircraft Corporation) (OpenAirDocs)
- Serial number: 911
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: August 29, 1957
- Certificate issued: February 1, 1999
- Expires: July 31, 2029
- Mode S code: AB0540
- Registered owner: [Yellowstone Aviation Inc](https://openairdocs.org/faa-owner/YELLOWSTONE%20AVIATION%20INC)
- Location: [Jackson, WY](https://openairdocs.org/faa-place/WY/Jackson)
- Owner type: Corporation
- Owner's area on the map: 43.4719° N, 110.7753° W: Placed by OpenAirDocs: center of Jackson, WY, 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=809W
- Page: https://openairdocs.org/aircraft/N809W

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 (Sikorsky S-39-C)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N809W.

## FAA accident and incident reports

None matched to N809W.

## 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) (4)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Sikorsky S-39-C)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA01282NY](https://openairdocs.org/stc/SA01282NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K015 on aircraft powered by Pratt & Whitney radial reciprocating engine Series R-985, R-1340 and R-1830. Airwolf Filter Corporation
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc

## Related

- Other Sikorsky S-39-C aircraft: https://openairdocs.org/model/sikorsky-s-39-c/aircraft.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.