# N21182: 1939 Stinson SR-10C - Status: Valid registration - Airframe: [Stinson SR-10C](https://openairdocs.org/model/stinson-sr-10c) (registry code 8631604, 5 seats) - Engine: [Lycoming R680E series](https://openairdocs.org/engine/lycoming-r680e-series) (registry code 41545) - Data sheets: [TCDS TC 678](https://openairdocs.org/tcds/TC%20678) (Consolidated Vultee Aircraft Corporation Stinson Division), [TCDS E-202](https://openairdocs.org/tcds/E-202) (Textron Lycoming AVCO Corporation) (OpenAirDocs) - Serial number: 35908 - Year built: 1939 - Type: Fixed wing single engine - Engine type: Reciprocating - Certificate issued: July 21, 2009 - Expires: November 30, 2027 - Mode S code: A1C0C4 - Registered owner: [Cox Ralph W III](https://openairdocs.org/faa-owner/COX%20RALPH%20W%20III) - Location: [Eagle, ID](https://openairdocs.org/faa-place/ID/Eagle) - Owner type: Individual - Owner's area on the map: 43.7756° N, 116.3950° W: Placed by OpenAirDocs at the center of ZIP code 83616, 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=21182 - Page: https://openairdocs.org/aircraft/N21182 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 Lycoming R680E model are included. ## ADs that may apply (OpenAirDocs): 5 in force ### Matched by airframe (Stinson SR-10C) None in force. ### Matched by engine (Lycoming R680E series) - [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 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004 - [AD 95-26-02](https://openairdocs.org/ad/95-26-02): Aviation Gasoline · Lycoming Engines IO-320-B1A, IO-320-B1B, IO-320-B1C and 182 more. Effective Jan 24, 1996 - [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 - [AD 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969 ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N21182. ## FAA accident and incident reports None matched to N21182. ## 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) (14) 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 (Stinson SR-10C) - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc - [STC SA6070NM](https://openairdocs.org/stc/SA6070NM): Installation of a 'quick-disconnect drain plug' on the engine rocker sump for the oil drain retrieval system after engine shutdown. West Coast Air Creations - [STC SA00024NY](https://openairdocs.org/stc/SA00024NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K007 on single or multi-engine fixed wing light aircraft incorporating Lycoming reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation - [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc - [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC - [STC SA00068LA](https://openairdocs.org/stc/SA00068LA): Installation of tail wheel adapter ring. R-R-R-Russ Aircraft ### Approved for the engine (Lycoming R680E series) - [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. Lists R-680-E1 - [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. Lists R-680-E1 - [STC SE2407CE](https://openairdocs.org/stc/SE2407CE): Add the following approved fuel: unleaded automotive gas, 91 minimum antiknock index and leaded automotive gas, 91 minimum antiknock index, (RON+MON)/2. Petersen Aviation Inc. Lists R-680E3 - [STC SE2408CE](https://openairdocs.org/stc/SE2408CE): Add the following approved fuel: unleaded automotive gas, 91 minimum antiknock index and leaded automotive gas, 91 minimum antiknock index, (RON+MON)/2. Petersen Aviation Inc. Lists R-680E1 - [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co. Lists R-680 Series - [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL. Lists R-680 Series ## Related - Other Stinson SR-10C aircraft: https://openairdocs.org/model/stinson-sr-10c/aircraft.md - The Lycoming R680E series engine: https://openairdocs.org/engine/lycoming-r680e-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.