# N665K: 1929 Stearman 4-C

- Status: Valid registration
- Airframe: [Stearman 4-C](https://openairdocs.org/model/stearman-4-c) (registry code 8560302, 3 seats)
- Engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016)
- Data sheets: [TCDS TC 2-155](https://openairdocs.org/tcds/TC%202-155) (Stearman Aircraft Company) (OpenAirDocs)
- Serial number: 4003
- Year built: 1929
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: July 7, 1961
- Certificate issued: January 4, 2023
- Expires: January 31, 2030
- Mode S code: A8C7AD
- Registered owner: [Peters Gary B](https://openairdocs.org/faa-owner/PETERS%20GARY%20B)
- Location: [Clarkston, WA](https://openairdocs.org/faa-place/WA/Clarkston)
- Owner type: Individual
- Owner's area on the map: 46.3755° N, 117.2903° W: Placed by OpenAirDocs at the center of ZIP code 99403, 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=665K
- Page: https://openairdocs.org/aircraft/N665K

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 Pratt & Whitney R1340 model are included.

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

### Matched by airframe (Stearman 4-C)

None in force.

### Matched by engine (Pratt & Whitney R1340 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N665K.

## FAA accident and incident reports

None matched to N665K.

## 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) (9)

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 (Stearman 4-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 SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International
- [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International
- [STC SA3862NM PAGE 2](https://openairdocs.org/stc/SA3862NM%20PAGE%202): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories. Electronics International
- [STC SA2190NM PAGE 2](https://openairdocs.org/stc/SA2190NM%20PAGE%202): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International
- [STC SA2350NM](https://openairdocs.org/stc/SA2350NM) (historical): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. Electronics International

## Related

- Other Stearman 4-C aircraft: https://openairdocs.org/model/stearman-4-c/aircraft.md
- The Pratt & Whitney R1340 series engine: https://openairdocs.org/engine/pratt-whitney-r1340-series.md

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