# N402S: Umbaugh James F STARDUSTER TOO - Status: Valid registration - Airframe: [Umbaugh James F STARDUSTER TOO](https://openairdocs.org/model/umbaugh-james-f-starduster-too) (registry code 86603AA, 2 seats) - Engine: [Lycoming 0-435](https://openairdocs.org/engine/lycoming-0-435) (registry code 41516) - Data sheets: [TCDS E-228](https://openairdocs.org/tcds/E-228) (Lycoming Engines) (OpenAirDocs) - Serial number: 1980 JFU - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Experimental, amateur built - Airworthiness date: June 14, 1982 - Certificate issued: July 19, 2024 - Expires: July 31, 2031 - Mode S code: A4B59F - Registered owner: [Bejvan David E](https://openairdocs.org/faa-owner/BEJVAN%20DAVID%20E) - Location: [Milwaukee, WI](https://openairdocs.org/faa-place/WI/Milwaukee) - Owner type: Individual - Owner's area on the map: 43.1143° N, 88.0429° W: Placed by OpenAirDocs at the center of ZIP code 53225, 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=402S - Page: https://openairdocs.org/aircraft/N402S 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): 3 in force ### Matched by airframe (Umbaugh James F STARDUSTER TOO) None in force. ### Matched by engine (Lycoming 0-435) - [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026 - [AD 2012-03-07](https://openairdocs.org/ad/2012-03-07): Carburetor · Lycoming Engines GO-435, GO-435-C2 (O-435-17), GO-435-C2A and 389 more. Effective Mar 27, 2012 - [AD 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991 ### Historical (superseded or no longer in force) - [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024 ## Information bulletins (advisory) (2 in force) - [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019 - [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014 ## NTSB investigations None matched to N402S. ## NTSB investigations on N402S not matched to an aircraft (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 NYC73DKM19](https://openairdocs.org/ntsb/NYC73DKM19), Dec 14, 1972: Sikorsky S-61L (N402S), Black Mtn, NC, substantial damage ## FAA accident and incident reports None matched to N402S. ## 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. ## Service difficulty reports on N402S not matched to an aircraft (1) They name N402S, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR 2011FA0000459](https://openairdocs.org/sdr/2011FA0000459), Jul 14, 2011: CYLINDER. CRACKED. DISCOVERED 3 CRACKED CYLINDERS, PN AEC631397 (F),S/N 54389-23,54589-12,54678-09. CRACKS IN CYLINDERS ARE LOCATED AT THE 17TH FIN ABOUT 3 INCHES UP FROM THE UPPE ## STCs that may be installed (OpenAirDocs) (12) 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 engine (Lycoming 0-435) - [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 SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. B & C Specialty Products Inc - [STC SE2932SW](https://openairdocs.org/stc/SE2932SW): Install carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive. Alcor LLC - [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company - [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc - [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc - [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc - [STC SE1-201](https://openairdocs.org/stc/SE1-201): Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D)). MidContinent Instru Co Inc - [STC SE09492SC](https://openairdocs.org/stc/SE09492SC): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. Exxon Company USA - [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation - [STC SE2278CE](https://openairdocs.org/stc/SE2278CE): Add the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index, (RON+MON)/2. Intermixing with aviation gasoline also approved. Petersen Aviation Inc ## Related - Other Umbaugh James F STARDUSTER TOO aircraft: https://openairdocs.org/model/umbaugh-james-f-starduster-too/aircraft.md - The Lycoming 0-435 engine: https://openairdocs.org/engine/lycoming-0-435.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.