# N774H: 1931 Stearman 4D - Status: Valid registration - Airframe: [Stearman 4D](https://openairdocs.org/model/stearman-4d) (registry code 8560304, 3 seats) - Engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008) - Data sheets: [TCDS ATC 305](https://openairdocs.org/tcds/ATC%20305) (Stearman Aircraft Company) (OpenAirDocs) - Serial number: 4025 - Year built: 1931 - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: December 5, 1991 - Certificate issued: July 19, 2017 - Expires: July 31, 2027 - Mode S code: AA7892 - Registered owner: [Western Antique Aeroplane & Automobile Museum](https://openairdocs.org/faa-owner/WESTERN%20ANTIQUE%20AEROPLANE%20%26%20AUTOMOBILE%20MUSEUM) - Location: [Hood River, OR](https://openairdocs.org/faa-place/OR/Hood%20River) - Owner type: Corporation - Owner's area on the map: 45.6068° N, 121.6023° W: Placed by OpenAirDocs at the center of ZIP code 97031, 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=774H - Page: https://openairdocs.org/aircraft/N774H 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 R-985 model are included. ## ADs that may apply (OpenAirDocs): 0 in force ### Matched by airframe (Stearman 4D) None in force. ### Matched by engine (Pratt & Whitney R-985 series) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N774H. ## FAA accident and incident reports None matched to N774H. ## 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) (11) 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 4D) - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [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 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 SA3062SO](https://openairdocs.org/stc/SA3062SO): Installation of a Pratt and Whitney model R-985-AN1 engine, a Hamilton Std model 2D30 propeller and other minor changes. Al Kimball - [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 ## Earlier aircraft with N774H The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N774H before. - [Cancelled 1938-03-15](https://openairdocs.org/deregistered/N774H-1938-03-15): Stearman 4E, S/N 4011. Owner: [Thompson Flying Service Inc](https://openairdocs.org/faa-owner/THOMPSON%20FLYING%20SERVICE%20INC), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City) ## Related - Other Stearman 4D aircraft: https://openairdocs.org/model/stearman-4d/aircraft.md - The Pratt & Whitney R-985 series engine: https://openairdocs.org/engine/pratt-whitney-r-985-series.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.