# N20798: 1939 Beech F17D - Status: Valid registration - Airframe: [Beech F17D](https://openairdocs.org/model/beech-f17d) (registry code 1150558, 5 seats) - Engine: [Jacobs L6](https://openairdocs.org/engine/jacobs-l6) (registry code 35005) - Data sheets: [TCDS TC 689](https://openairdocs.org/tcds/TC%20689) (Textron Aviation Inc.), [TCDS TC 195](https://openairdocs.org/tcds/TC%20195) (Air Repair Inc.) (OpenAirDocs) - Serial number: 333 - Year built: 1939 - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Standard - Airworthiness date: June 30, 1956 - Certificate issued: July 16, 1985 - Expires: November 30, 2027 - Mode S code: A1AFB8 - Registered owner: [Beechcraft Heritage Museum Inc](https://openairdocs.org/faa-owner/BEECHCRAFT%20HERITAGE%20MUSEUM%20INC) - Location: [Tullahoma, TN](https://openairdocs.org/faa-place/TN/Tullahoma) - Owner type: Corporation - Owner's area on the map: 35.3506° N, 86.1974° W: Placed by OpenAirDocs at the center of ZIP code 37388, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=20798 - Page: https://openairdocs.org/aircraft/N20798 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): 2 in force ### Matched by airframe (Beech F17D) - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 99-05-13 R1 WD](https://openairdocs.org/ad/99-05-13-R1-WD): Withdrawal of AD 99-05-13 · Beech B17B, B17L, B17R (Army UC-43H) and 107 more. Effective Jul 5, 2000 ### Matched by engine (Jacobs L6) None in force. ### Historical (superseded or no longer in force) - [AD 99-05-13](https://openairdocs.org/ad/99-05-13) (historical): Fuel Tank Selector · Beech B17B, B17L, B17R (Army UC-43H) and 107 more. Effective Apr 19, 1999 ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N20798. ## FAA accident and incident reports None matched to N20798. ## 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) (16) 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 (Beech F17D) - [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. TCW Technologies, LLC - [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA02930NY](https://openairdocs.org/stc/SA02930NY): Installation of Insight Instrument Corporation Graphic Engine Monitor (GEM 610C) models G3, G2, and G1 and 1200C model G4 as primary Cylinder Head Temperature (CHT), Exhaust Gas Temperature (EGT), and Turbine Inlet Temperature (TIT) Instruments. Insight Instrument Corporation - [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc - [STC SA02402SE PAGE 1](https://openairdocs.org/stc/SA02402SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc - [STC SA02825NY PAGE 1](https://openairdocs.org/stc/SA02825NY%20PAGE%201): Installation of Aerospace Logic Aircraft Instruments. Aerospace Logic Inc - [STC SA00068LA](https://openairdocs.org/stc/SA00068LA): Installation of tail wheel adapter ring. R-R-R-Russ Aircraft - [STC SA1455NM](https://openairdocs.org/stc/SA1455NM): Installation of a flame proof auxiliary heater-dryer, Model12-1600. Thermal, Inc - [STC SA1461NM](https://openairdocs.org/stc/SA1461NM): Installation of fuselage structure assembly. Anything Antiques - [STC SA555NW](https://openairdocs.org/stc/SA555NW): Installation of front and rear landing gear truss assemblies. Anything Antiques ### Approved for the engine (Jacobs L6) - [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC - [STC SE04136AT](https://openairdocs.org/stc/SE04136AT): Installation of Bendix Scintilla WL-7A Battery Ignition Timer (distributor) modified from a breaker points and condenser design to a Hall Effect electronic sensor design. Air Repair Inc - [STC SE00809WI](https://openairdocs.org/stc/SE00809WI): Installation of a modified alternate source of supply, engine ignition coil assembly and condenser. Air Repair Inc - [STC SE01652WI](https://openairdocs.org/stc/SE01652WI): Modification of engine to replace contact points and condenser controlled Bendix Scintilla WL-7A battery timer (distributor) with an electronically controlled WL-7A-M battery timer. Radial Engines Ltd - [STC SE01243WI](https://openairdocs.org/stc/SE01243WI): Installation of Barron Aviation intake tube drain kits on the engines listed on the attached FAA Approved Model List (AML) No. SE01243WI, dated April 26, 2004, or later FAA Approved revision. Barron Aviation ## Related - Other Beech F17D aircraft: https://openairdocs.org/model/beech-f17d/aircraft.md - The Jacobs L6 engine: https://openairdocs.org/engine/jacobs-l6.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.