# Franklin 6A4165 series - Type: Engine model (FAA registry) - Registry code: 27025 - Manufacturer (registry): FRANKLIN - Model: 6A4165 SERIES - Engine type: Reciprocating - Power: 165 hp - Data sheet: [TCDS E-238](https://openairdocs.org/tcds/E-238) (OpenAirDocs) - Holder: Franklin Sp. z.o.o. - Installed in: 770 registered aircraft - Page: https://openairdocs.org/engine/franklin-6a4165-series The registry names only the engine series, so ADs for every model in the series are matched. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 96-02-04](https://openairdocs.org/ad/96-02-04): 80 Octane Avgas · Wytwornia Sprzetu Komunikacyjnego 6A4-150-B3 and 6A4-165-B3. Effective Feb 13, 1996 - [AD 63-22-03](https://openairdocs.org/ad/63-22-03): Carburetors · Continental Motors GO-300-A, GO-300-B, GO-300-C and 143 more. Effective Dec 2, 1963 - [AD 69-09-01](https://openairdocs.org/ad/69-09-01): Eisemann Magnetos · Eisemann Magnetos, 2A4-45-B2, 2A4-49-B2 and 158 more - [AD 51-15-02](https://openairdocs.org/ad/51-15-02): Crankcase · Wytwornia Sprzetu Komunikacyjnego 6A4-165-B3 ## Registered aircraft (770, first 50) - [N1000M](https://openairdocs.org/aircraft/N1000M): [Valdez Raymond G](https://openairdocs.org/faa-owner/VALDEZ%20RAYMOND%20G), [Las Vegas, NM](https://openairdocs.org/faa-place/NM/Las%20Vegas), S/N 108-3741 - [N1038B](https://openairdocs.org/aircraft/N1038B): [Cooper Gerald W](https://openairdocs.org/faa-owner/COOPER%20GERALD%20W), [Kennewick, WA](https://openairdocs.org/faa-place/WA/Kennewick), built 1946, S/N 108-1020 - [N1045H](https://openairdocs.org/aircraft/N1045H): [Fairbanks Paul](https://openairdocs.org/faa-owner/FAIRBANKS%20PAUL), [Chugiak, AK](https://openairdocs.org/faa-place/AK/Chugiak), S/N 15AC51 - [N1083J](https://openairdocs.org/aircraft/N1083J): [Beerman William C](https://openairdocs.org/faa-owner/BEERMAN%20WILLIAM%20C), [Raleigh, NC](https://openairdocs.org/faa-place/NC/Raleigh), built 1948, S/N 108-4776 - [N108CM](https://openairdocs.org/aircraft/N108CM): [Cardinal Aviation LLC](https://openairdocs.org/faa-owner/CARDINAL%20AVIATION%20LLC), [Gaines, MI](https://openairdocs.org/faa-place/MI/Gaines), built 1948, S/N 108-4723 - [N108LB](https://openairdocs.org/aircraft/N108LB): [Hauser Scott R](https://openairdocs.org/faa-owner/HAUSER%20SCOTT%20R), [Towanda, PA](https://openairdocs.org/faa-place/PA/Towanda), S/N 108-4811 - [N108NM](https://openairdocs.org/aircraft/N108NM): [Harbison Kenneth R](https://openairdocs.org/faa-owner/HARBISON%20KENNETH%20R), [Las Cruces, NM](https://openairdocs.org/faa-place/NM/Las%20Cruces), built 1948, S/N 108-4910 - [N108RC](https://openairdocs.org/aircraft/N108RC): [Griebsch James J](https://openairdocs.org/faa-owner/GRIEBSCH%20JAMES%20J), [Saranac Lake, NY](https://openairdocs.org/faa-place/NY/Saranac%20Lake), built 1947, S/N 108-2995 - [N108RD](https://openairdocs.org/aircraft/N108RD): [Classic Air LLC](https://openairdocs.org/faa-owner/CLASSIC%20AIR%20LLC), [Lititz, PA](https://openairdocs.org/faa-place/PA/Lititz), built 1948, S/N 108-4523 - [N108SV](https://openairdocs.org/aircraft/N108SV): [Ensign Development Co LLC](https://openairdocs.org/faa-owner/ENSIGN%20DEVELOPMENT%20CO%20LLC), [Leavenworth, KS](https://openairdocs.org/faa-place/KS/Leavenworth), built 1948, S/N 1084165 - [N108US](https://openairdocs.org/aircraft/N108US): [Gunter Vernon W](https://openairdocs.org/faa-owner/GUNTER%20VERNON%20W), [Talkeetna, AK](https://openairdocs.org/faa-place/AK/Talkeetna), built 1947, S/N 108-2841 - [N108WG](https://openairdocs.org/aircraft/N108WG): [Fichtner Eric](https://openairdocs.org/faa-owner/FICHTNER%20ERIC), [Concord, NC](https://openairdocs.org/faa-place/NC/Concord), built 1948, S/N 1084124 - [N108WH](https://openairdocs.org/aircraft/N108WH): [Marshall Robert L](https://openairdocs.org/faa-owner/MARSHALL%20ROBERT%20L), [Pine River, MN](https://openairdocs.org/faa-place/MN/Pine%20River), built 1986, S/N 108-4985 - [N108WS](https://openairdocs.org/aircraft/N108WS): [Spence William D](https://openairdocs.org/faa-owner/SPENCE%20WILLIAM%20D), [Waller, TX](https://openairdocs.org/faa-place/TX/Waller), built 1948, S/N 108-4502 - [N108WY](https://openairdocs.org/aircraft/N108WY): built 1947, S/N 108-2444 - [N10ZP](https://openairdocs.org/aircraft/N10ZP): [Formosa Lloyd A](https://openairdocs.org/faa-owner/FORMOSA%20LLOYD%20A), [Delta Junction, AK](https://openairdocs.org/faa-place/AK/Delta%20Junction), built 1948, S/N 108-4505 - [N121N](https://openairdocs.org/aircraft/N121N): [Ayo Johnny D](https://openairdocs.org/faa-owner/AYO%20JOHNNY%20D), [Mount Zion, GA](https://openairdocs.org/faa-place/GA/Mount%20Zion), built 1948, S/N 108-4449 - [N1308H](https://openairdocs.org/aircraft/N1308H): [Doose Paul](https://openairdocs.org/faa-owner/DOOSE%20PAUL), [Wheeling, IL](https://openairdocs.org/faa-place/IL/Wheeling), built 1949, S/N 15AC-338 - [N1312H](https://openairdocs.org/aircraft/N1312H): [Zadnikar Brian M](https://openairdocs.org/faa-owner/ZADNIKAR%20BRIAN%20M), [Eveleth, MN](https://openairdocs.org/faa-place/MN/Eveleth), built 1949, S/N 15AC-342 - [N132Q](https://openairdocs.org/aircraft/N132Q): [Andrews Dan C](https://openairdocs.org/faa-owner/ANDREWS%20DAN%20C), [Weatherly, PA](https://openairdocs.org/faa-place/PA/Weatherly), built 1947, S/N 1084052 - [N134C](https://openairdocs.org/aircraft/N134C): [Sutton Aircraft Salvage LLC](https://openairdocs.org/faa-owner/SUTTON%20AIRCRAFT%20SALVAGE%20LLC), [Palmer, AK](https://openairdocs.org/faa-place/AK/Palmer), S/N 108-3134 - [N147C](https://openairdocs.org/aircraft/N147C): [Wolverine Aviation LLC](https://openairdocs.org/faa-owner/WOLVERINE%20AVIATION%20LLC), [Frankenmuth, MI](https://openairdocs.org/faa-place/MI/Frankenmuth), S/N 108-3147 - [N159C](https://openairdocs.org/aircraft/N159C): [Fay William E](https://openairdocs.org/faa-owner/FAY%20WILLIAM%20E), [Washougal, WA](https://openairdocs.org/faa-place/WA/Washougal), built 1947, S/N 108-3159 - [N161C](https://openairdocs.org/aircraft/N161C): [Marler Ryan](https://openairdocs.org/faa-owner/MARLER%20RYAN), [Rexburg, ID](https://openairdocs.org/faa-place/ID/Rexburg), S/N 1083161 - [N162C](https://openairdocs.org/aircraft/N162C): [Bradley Christopher](https://openairdocs.org/faa-owner/BRADLEY%20CHRISTOPHER), [Juneau, AK](https://openairdocs.org/faa-place/AK/Juneau), S/N 108-3162 - [N165C](https://openairdocs.org/aircraft/N165C): [Weakley Companies LLC](https://openairdocs.org/faa-owner/WEAKLEY%20COMPANIES%20LLC), [Poland, NY](https://openairdocs.org/faa-place/NY/Poland), built 1947, S/N 108-3165 - [N168C](https://openairdocs.org/aircraft/N168C): [Sutton George Michael](https://openairdocs.org/faa-owner/SUTTON%20GEORGE%20MICHAEL), [Carmel Valley, CA](https://openairdocs.org/faa-place/CA/Carmel%20Valley), built 1947, S/N 108-3168 - [N171C](https://openairdocs.org/aircraft/N171C): [Carpenter John H Jr](https://openairdocs.org/faa-owner/CARPENTER%20JOHN%20H%20JR), [Malabar, FL](https://openairdocs.org/faa-place/FL/Malabar), built 1947, S/N 108-3171 - [N174C](https://openairdocs.org/aircraft/N174C): [Durham Rex L](https://openairdocs.org/faa-owner/DURHAM%20REX%20L), [Blakely, GA](https://openairdocs.org/faa-place/GA/Blakely), built 1947, S/N 108-3174 - [N175C](https://openairdocs.org/aircraft/N175C): [Rauber Paul C](https://openairdocs.org/faa-owner/RAUBER%20PAUL%20C), [Carmel By The Sea, CA](https://openairdocs.org/faa-place/CA/Carmel%20By%20The%20Sea), built 1947, S/N 108-3175 - [N176C](https://openairdocs.org/aircraft/N176C): [Purvis David S](https://openairdocs.org/faa-owner/PURVIS%20DAVID%20S), [Fresno, CA](https://openairdocs.org/faa-place/CA/Fresno), built 1947, S/N 108-3176 - [N177C](https://openairdocs.org/aircraft/N177C): [Smith Happy E](https://openairdocs.org/faa-owner/SMITH%20HAPPY%20E), [Rogersville, TN](https://openairdocs.org/faa-place/TN/Rogersville), built 1947, S/N 108-3177 - [N17WS](https://openairdocs.org/aircraft/N17WS): [Wise River Aviation LLC](https://openairdocs.org/faa-owner/WISE%20RIVER%20AVIATION%20LLC), [Three Forks, MT](https://openairdocs.org/faa-place/MT/Three%20Forks), S/N 108-4499 - [N180LY](https://openairdocs.org/aircraft/N180LY): [Fischer Bruce M](https://openairdocs.org/faa-owner/FISCHER%20BRUCE%20M), [Sun Prairie, WI](https://openairdocs.org/faa-place/WI/Sun%20Prairie), built 1949, S/N 108-4486 - [N184C](https://openairdocs.org/aircraft/N184C): [Patterson Charles R](https://openairdocs.org/faa-owner/PATTERSON%20CHARLES%20R), [Jeffersonville, IN](https://openairdocs.org/faa-place/IN/Jeffersonville), built 1947, S/N 108-3184 - [N187C](https://openairdocs.org/aircraft/N187C): [Hogan Mary](https://openairdocs.org/faa-owner/HOGAN%20MARY), [Forest Park, IL](https://openairdocs.org/faa-place/IL/Forest%20Park), built 1947, S/N 108-3187 - [N18F](https://openairdocs.org/aircraft/N18F): [Wilcox Gilbert B](https://openairdocs.org/faa-owner/WILCOX%20GILBERT%20B), [Somers, CT](https://openairdocs.org/faa-place/CT/Somers), built 1947, S/N 108-3092 - [N190C](https://openairdocs.org/aircraft/N190C): [Ware Mark](https://openairdocs.org/faa-owner/WARE%20MARK), [Granbury, TX](https://openairdocs.org/faa-place/TX/Granbury), built 1947, S/N 108-3190 - [N1947J](https://openairdocs.org/aircraft/N1947J): [Bendure Mark W](https://openairdocs.org/faa-owner/BENDURE%20MARK%20W), [Overland Park, KS](https://openairdocs.org/faa-place/KS/Overland%20Park), built 1947, S/N 108-2291 - [N195C](https://openairdocs.org/aircraft/N195C): [Wixom Jason D](https://openairdocs.org/faa-owner/WIXOM%20JASON%20D), [Blackfoot, ID](https://openairdocs.org/faa-place/ID/Blackfoot), S/N 108-3195 - [N196C](https://openairdocs.org/aircraft/N196C): [Topp Gary J](https://openairdocs.org/faa-owner/TOPP%20GARY%20J), [Lakewood, CO](https://openairdocs.org/faa-place/CO/Lakewood), built 1947, S/N 108-3196 - [N197C](https://openairdocs.org/aircraft/N197C): [Wilson Eric D](https://openairdocs.org/faa-owner/WILSON%20ERIC%20D), [Fairbanks, AK](https://openairdocs.org/faa-place/AK/Fairbanks), S/N 108-3197 - [N198C](https://openairdocs.org/aircraft/N198C): [Stanton Jason H](https://openairdocs.org/faa-owner/STANTON%20JASON%20H), [Boise, ID](https://openairdocs.org/faa-place/ID/Boise), built 1947, S/N 108-3198 - [N201C](https://openairdocs.org/aircraft/N201C): [Vlk Mark J](https://openairdocs.org/faa-owner/VLK%20MARK%20J), [Moses Lake, WA](https://openairdocs.org/faa-place/WA/Moses%20Lake), S/N 108-3201 - [N202C](https://openairdocs.org/aircraft/N202C): [Luft Aviation Inc](https://openairdocs.org/faa-owner/LUFT%20AVIATION%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1947, S/N 108-3202 - [N211Z](https://openairdocs.org/aircraft/N211Z): [Bell Scott](https://openairdocs.org/faa-owner/BELL%20SCOTT), [Mc Alpin, FL](https://openairdocs.org/faa-place/FL/Mc%20Alpin), built 1947, S/N 108-2838 - [N214DB](https://openairdocs.org/aircraft/N214DB): [Tudosie Catalin Trustee](https://openairdocs.org/faa-owner/TUDOSIE%20CATALIN%20TRUSTEE), [Lake Arrowhead, CA](https://openairdocs.org/faa-place/CA/Lake%20Arrowhead), built 1948, S/N 1084517 - [N216C](https://openairdocs.org/aircraft/N216C): [Ireland James L](https://openairdocs.org/faa-owner/IRELAND%20JAMES%20L), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 1947, S/N 108-3216 - [N21988](https://openairdocs.org/aircraft/N21988): [Buck Robin F](https://openairdocs.org/faa-owner/BUCK%20ROBIN%20F), [Kent, WA](https://openairdocs.org/faa-place/WA/Kent), built 2001, S/N 1 - [N220C](https://openairdocs.org/aircraft/N220C): [Sparks James D](https://openairdocs.org/faa-owner/SPARKS%20JAMES%20D), [Glennallen, AK](https://openairdocs.org/faa-place/AK/Glennallen), built 1947, S/N 108-3220 All 770: https://openairdocs.org/engine/franklin-6a4165-series/aircraft.md ## NTSB investigations (438, newest 50) 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 WPR26LA183](https://openairdocs.org/ntsb/WPR26LA183), May 12, 2026: Stinson 108-3 (N588C), Quilcene, WA, substantial damage, investigation ongoing - [NTSB ERA26LA108](https://openairdocs.org/ntsb/ERA26LA108), Feb 6, 2026: Stinson 108-3 (N528C), Palmetto, FL, substantial damage. Probable cause: The pilot's inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. - [NTSB CEN26LA087](https://openairdocs.org/ntsb/CEN26LA087), Jan 11, 2026: Stinson 108-3 (N6725M), Gypsum, CO, substantial damage, investigation ongoing - [NTSB ANC25LA058](https://openairdocs.org/ntsb/ANC25LA058), Jun 25, 2025: Stinson 108-8 (N97438), Alexander Creek, AK, substantial damage. Probable cause: The pilot’s failure to maintain airplane control during final approach. Contributing to the accident was the airplane’s encounter with a downdraft that led to a rapid loss of altitude. - [NTSB WPR25LA179](https://openairdocs.org/ntsb/WPR25LA179), Jun 13, 2025: Stinson 108-2 (N9550K), East Wenatchee, WA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll with a left crosswind. - [NTSB ANC25LA036](https://openairdocs.org/ntsb/ANC25LA036), Apr 25, 2025: Stinson 108 (N9308K), North Pole, AK, substantial damage. Probable cause: The pilot's failure to maintain obstacle clearance which resulted in an in-flight collision with a tree. Contributing to the accident was his impairment from the effects of alcohol consumption. - [NTSB ANC24LA048](https://openairdocs.org/ntsb/ANC24LA048), Jun 1, 2024: Stinson 108-2 (N299C), Bethel, AK, substantial damage. Probable cause: The uncertificated pilot’s decision to fly an unairworthy airplane and his failure to maintain directional control during landing, which resulted in a landing gear collapse. Contributing was the… - [NTSB ERA24LA210](https://openairdocs.org/ntsb/ERA24LA210), May 6, 2024: Stinson 108-2 (N2721L), Titusville, FL, substantial damage. Probable cause: The pilot’s failure to maintain directional control while landing in variable wind conditions, which resulted in runway excursion and collision with an approach light. - [NTSB ERA24LA052](https://openairdocs.org/ntsb/ERA24LA052), Nov 30, 2023: Stinson 108-2 (N9564K), Martinsville, VA, substantial damage. Probable cause: The pilot’s failure to maintain directional control during a wheel landing in crosswind conditions and the flight instructor’s delayed remedial action, which resulted in a ground loop on the runway. - [NTSB WPR23LA117](https://openairdocs.org/ntsb/WPR23LA117), Mar 4, 2023: Stinson 108 (N6532M), Lampasas, TX, substantial damage. Probable cause: Improper case hardening of the crankshaft timing gear, which resulted in the fatigue failure of the gear and a total loss of engine power. - [NTSB ERA22LA333](https://openairdocs.org/ntsb/ERA22LA333), Jul 23, 2022: Stinson 108 (N6020M), Batesburg, SC, substantial damage. Probable cause: The fatigue failure of the crankshaft gear, resulting in a total loss of engine power. - [NTSB WPR22LA085](https://openairdocs.org/ntsb/WPR22LA085), Jan 27, 2022: Universal Stinson 108-2 (N9433K), Byron, CA, substantial damage. Probable cause: The pilot’s inadequate flare and loss of directional control during landing which resulted in a runway excursion. Contributing to the accident was the instructor’s delayed remedial action. - [NTSB ANC21LA086](https://openairdocs.org/ntsb/ANC21LA086), Sep 12, 2021: Stinson 108-3 (N6476M), Port Alsworth, AK, substantial damage. Probable cause: A loss of directional control for reasons that could not be determined based on the available information. - [NTSB WPR21LA251](https://openairdocs.org/ntsb/WPR21LA251), Jun 27, 2021: Stinson 108-3 (N6548M), Stevenson, WA, destroyed. Probable cause: A runway incursion, which resulted in a go-around, and subsequent forced landing when the airplane was not able to climb at a rate sufficient to clear approaching rising terrain. - [NTSB WPR21LA064](https://openairdocs.org/ntsb/WPR21LA064), Nov 3, 2020: Stinson 108-3 (N6855M), El Monte, CA, substantial damage. Probable cause: A loss of directional control during the landing roll due to an undetermined failure of the tailwheel assembly. - [NTSB ERA20LA320](https://openairdocs.org/ntsb/ERA20LA320), Sep 17, 2020: Stinson 108 (N336C), Newport, PA, substantial damage. Probable cause: A total loss of engine power during cruise flight due to a disconnected carburetor mixture control cable which allowed the carburetor mixture lever to migrate to the cut-off position during flight. - [NTSB CEN20LA377](https://openairdocs.org/ntsb/CEN20LA377), Sep 1, 2020: Stinson 108-3 (N909C), Coleman, MI, substantial damage. Probable cause: The pilot’s improper installation of the generator drive gear, which resulted in a total loss of engine power. - [NTSB CEN20LA345](https://openairdocs.org/ntsb/CEN20LA345), Aug 12, 2020: Stinson 108 (N9726K), Glenwood Springs, CO, substantial damage. Probable cause: The pilot’s loss of directional control upon landing due to a sheared tailwheel locking pin. - [NTSB WPR20CA236](https://openairdocs.org/ntsb/WPR20CA236), Jul 8, 2020: Stinson 108 (N134C), Farewell Lakes, AK, substantial damage. Probable cause: The pilot's delayed decision to abort the takeoff roll, which resulted in a runway overrun and airplane nose over. - [NTSB ANC20CA063](https://openairdocs.org/ntsb/ANC20CA063), Jul 2, 2020: Stinson 108 (N6252M), Nikolai, AK, substantial damage. Probable cause: The pilot's improper decision to depart from an unsuitable off-airport surface which resulted in a departure area excursion and impact with trees. - [NTSB CEN20CA204](https://openairdocs.org/ntsb/CEN20CA204), Jun 1, 2020: Stinson 108 (N6518M), Denver, CO, substantial damage. Probable cause: The pilot’s failure to maintain directional control while landing during variable wind conditions. - [NTSB ANC19TA055](https://openairdocs.org/ntsb/ANC19TA055), Sep 26, 2019: Stinson 108 (N6533M), Tyonek, AK, substantial damage. Probable cause: The pilot’s exceedance of the airplane’s critical angle of attack during a short field takeoff, which resulted in an aerodynamic stall and loss of control. - [NTSB CEN19LA222](https://openairdocs.org/ntsb/CEN19LA222), Jul 13, 2019: Stinson 108 (N9651K), Clinton, AR, substantial damage. Probable cause: A partial loss of engine power for undetermined reasons. - [NTSB WPR19LA207](https://openairdocs.org/ntsb/WPR19LA207), Jul 9, 2019: Stinson 108 (N6642M), Klamath Falls, OR, substantial damage. Probable cause: The mechanic’s failure to identify an engine performance issue, which led to a partial loss of engine power. Contributing to the accident was the pilot’s decision to operate the airplane with a known… - [NTSB WPR19LA179](https://openairdocs.org/ntsb/WPR19LA179), Jun 27, 2019: Stinson 108 (N6116M), Caldwell, ID, substantial damage. Probable cause: A total loss of engine power during approach due to a failed piston. The reason for the piston failure could not be determined based on the available information. - [NTSB GAA19CA263](https://openairdocs.org/ntsb/GAA19CA263), May 12, 2019: Stinson 108 (N6392M), Soldotna, AK, substantial damage. Probable cause: The pilot's overapplication of the brakes during landing on a soft runway, which resulted in a nose-over. - [NTSB ERA18LA242](https://openairdocs.org/ntsb/ERA18LA242), Sep 2, 2018: Stinson 108 (N4059C), Indiana, PA, substantial damage. Probable cause: A total loss of engine power as a result of debris contamination of the fuel, which resulted in fuel starvation. - [NTSB GAA18CA237](https://openairdocs.org/ntsb/GAA18CA237), Apr 27, 2018: Stinson 108 (N6933M), Eliza Island, WA, substantial damage. Probable cause: The pilot’s exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall. - [NTSB GAA18CA156](https://openairdocs.org/ntsb/GAA18CA156), Mar 11, 2018: Stinson 108 (N9457K), Cedar Rapids, IA, substantial damage. Probable cause: The pilot’s improper landing flare, which resulted in a loss of directional control and a nose-over. - [NTSB GAA18CA028](https://openairdocs.org/ntsb/GAA18CA028), Oct 26, 2017: Stinson 108 (N927D), Lewiston, ID, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll. Contributing to the accident was the pilot’s failure to obtain appropriate training in the airplane before flying solo. - [NTSB ERA17LA182](https://openairdocs.org/ntsb/ERA17LA182), May 17, 2017: Stinson 108 (N9366K), West Creek, NJ, substantial damage. Probable cause: A total loss of engine power due to the No. 4 cylinder’s exhaust valve getting stuck and the subsequent fracturing of the valve face stem. - [NTSB GAA17CA224](https://openairdocs.org/ntsb/GAA17CA224), Apr 7, 2017: Stinson 108 (N9363K), Woodruff, WI, substantial damage. Probable cause: The pilot receiving instruction's incorrect brake usage and failure to maintain directional control during the landing roll. - [NTSB GAA17CA153](https://openairdocs.org/ntsb/GAA17CA153), Feb 20, 2017: Stinson 108 (N9277K), Valparaiso, IN, substantial damage. Probable cause: The pilot’s failure to maintain directional control while landing with a crosswind. - [NTSB CEN17LA057](https://openairdocs.org/ntsb/CEN17LA057), Dec 16, 2016: Stinson 108-3 (N812C), Ionia, MI, substantial damage. Probable cause: A failure of the aft support cable on the left main landing ski due to an inadequately formed nicopress sleeve, which allowed the ski to rotate into a vertical position shortly after liftoff, and its… - [NTSB GAA17CA015](https://openairdocs.org/ntsb/GAA17CA015), Oct 6, 2016: Stinson 108 (N4210C), Rifle, CO, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion. - [NTSB GAA16CA424](https://openairdocs.org/ntsb/GAA16CA424), Aug 5, 2016: Stinson 108 (N9250K), Sunriver, OR, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll in gusting wind conditions, which resulted in runway excursion and nose-over. - [NTSB CEN16LA287](https://openairdocs.org/ntsb/CEN16LA287), Jul 22, 2016: Stinson 108 (N8019K), Dodge Center, MN, substantial damage. Probable cause: A partial loss of engine power due to carburetor ice. - [NTSB GAA16CA369](https://openairdocs.org/ntsb/GAA16CA369), Jul 8, 2016: Stinson 108 (N955C), Red Lodge, MT, substantial damage. Probable cause: A deer running across the runway and impacting the left side of the airplane, resulting in a loss of directional control, a runway excursion, and a ground loop. - [NTSB GAA16CA221](https://openairdocs.org/ntsb/GAA16CA221), May 6, 2016: Stinson 108 (N8068K), Batavia, OH, substantial damage. Probable cause: The pilot's failure to maintain directional control during landing, which resulted in a runway excursion. Contributing to the accident was the pilot's incorrect brake application during the runway… - [NTSB WPR16CA077](https://openairdocs.org/ntsb/WPR16CA077), Feb 25, 2016: Stinson 108 3 (N862C), Livermore, CA, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing roll. Contributing to the accident was maintenance personnel's failure to detect the worn tailwheel assembly during the… - [NTSB GAA15LA265](https://openairdocs.org/ntsb/GAA15LA265), Sep 20, 2015: Stinson 108 (N6066M), Palmer, AK, substantial damage. Probable cause: The pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during final approach to landing, which resulted in an aerodynamic stall and impact… - [NTSB WPR15LA223](https://openairdocs.org/ntsb/WPR15LA223), Jul 25, 2015: Stinson 108 - 3 (N6152M), North Las Vegas, NV, substantial damage. Probable cause: The partial loss of engine power due to a degraded cylinder exhaust valve seal, which resulted in low cylinder compression. - [NTSB CEN14CA183](https://openairdocs.org/ntsb/CEN14CA183), Mar 14, 2014: Stinson 108 (N9538K), Broomfield, CO, substantial damage. Probable cause: The pilot's failure to maintain directional control during the landing, which resulted in the airplane departing the runway and nosing over. - [NTSB WPR13LA320](https://openairdocs.org/ntsb/WPR13LA320), Jul 10, 2013: Stinson 108-3 (N703C), Blackfoot, ID, substantial damage. Probable cause: A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded… - [NTSB CEN13LA305](https://openairdocs.org/ntsb/CEN13LA305), May 23, 2013: Stinson 108-3 (N121CM), Beaumont, TX, substantial damage. Probable cause: The lack of a forward clamp on the carburetor heat box rubber boot, which allowed the boot to be ingested into the inlet of the carburetor heat box, restricting the airflow and leading to a… - [NTSB CEN13LA091](https://openairdocs.org/ntsb/CEN13LA091), Dec 5, 2012: Stinson 108-2 (N8775K), Halfway, MO, substantial damage. Probable cause: The pilot's failure to properly maintain the airplane and engine, which resulted in a total loss of engine power due to improperly installed magnetos and a broken camshaft. - [NTSB WPR12LA283](https://openairdocs.org/ntsb/WPR12LA283), Jun 30, 2012: Stinson 108 (N773C), Stanley, ID, substantial damage. Probable cause: The pilot’s inadequate preflight planning and decision to takeoff at a density altitude outside of the airplane’s takeoff performance envelope, with a tailwind, and near the airplane’s maximum gross… - [NTSB WPR12CA291](https://openairdocs.org/ntsb/WPR12CA291), Jun 25, 2012: Stinson 108-2 (N247C), Mile Hi Landing Strip, ID, substantial damage. Probable cause: The pilot's misjudgment of the speed and distance required to land, which resulted in a runway overrun. - [NTSB WPR12CA129](https://openairdocs.org/ntsb/WPR12CA129), Mar 12, 2012: Stinson 108-3 (N4143C), Santa Clarita, CA, substantial damage. Probable cause: The pilot's delayed decision to abandon the landing attempt, which resulted in the airplane colliding with rising terrain. Contributing to the accident was the pilot's decision to land with a… - [NTSB ERA12CA064](https://openairdocs.org/ntsb/ERA12CA064), Nov 5, 2011: Stinson 108-3 (N6263M), Whitefield, NH, substantial damage. Probable cause: The student pilot did not maintain directional control during the landing flare. All 438: https://openairdocs.org/engine/franklin-6a4165-series/ntsb.md ## FAA accident and incident reports (394, newest 50) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20260611010419I](https://openairdocs.org/incident/20260611010419I), Jun 11, 2026: Stinson 108-3 (N637C), Folkston, GA, Minor damage. After landing on runway 9 at Davis Field (3J6) the pilot applied excessive braking and the aircraft tipped forward. The propeller struck the runway and the… - [Accident 20260512005529A](https://openairdocs.org/incident/20260512005529A), May 12, 2026: Stinson 108-3 (N588C), Quilcene, WA, Substantial damage. At approximately 10:35 aircraft was southbound at 4000 feet AGL. While cruising at 2600 RPM pilot experienced sudden engine vibration and consequent engine… - [Accident 20260206004369A](https://openairdocs.org/incident/20260206004369A), Feb 6, 2026: Stinson 108-3 (N528C), Palmetto, FL, Substantial damage. Aircraft suffered fuel starvation during approcah at 48X, engine shutdown. Aircraft landed in farm field northeast of the airfield. Aircraft flipped and ended… - [Accident 20260111000179A](https://openairdocs.org/incident/20260111000179A), Jan 11, 2026: Stinson 108-3 (N6725M), Gypsum, CO, Destroyed. On 01/11/2026 at approximately 1416 (MDT), a Stinson 108-3 crashed at a Private Airstrip in the vicinity of Gypsum, CO. Pilot reported that the engine… - [Accident 20250625014909A](https://openairdocs.org/incident/20250625014909A), Jun 25, 2025: Stinson 108 (N97438), Alexander Creek, AK, Substantial damage. The airplane landed heavy causing it to nose over and come to a rest upside down. - [Accident 20250613007659A](https://openairdocs.org/incident/20250613007659A), Jun 13, 2025: Stinson 108 (N9550K), Wenatchee, WA, Substantial damage. During the landing flair aircraft experenced a cross-wind event on the left wing causing the right main gear to touch down. The induced side loading caused the… - [Accident 20250425005629A](https://openairdocs.org/incident/20250425005629A), Apr 25, 2025: Universal Stinson 108-2 (N9308K), North Pole, AK, Substantial damage. Per pilot statement, the flight departed from an unknown airfield on elelson farm road. At approximately 0130 local time, the pilot made an undeclared… - [Incident 20241019016479I](https://openairdocs.org/incident/20241019016479I), Oct 19, 2024: Stinson 108-3 (N6728M), Jacksonville, IL, No damage. Pilot was in cruise flight southwest of kijx when the engine lost all power. Pilot switched fuel tanks and applied carb heat with no effect. Pilot was commited… - [Accident 20240530015969A](https://openairdocs.org/incident/20240530015969A), May 30, 2024: Stinson 108-2 (N299C), Bethel, AK, Substantial damage. The aircraft registration is valid and current. There is no record of [privacy data omitted] holding a pilot certificate in the safety performance analysis… - [Accident 20240506005899A](https://openairdocs.org/incident/20240506005899A), May 6, 2024: Stinson 108-2 (N2721L), Titusville, FL, Minor damage. This aircraft sustained minor damage when the pilot lost control and veered off the runway while landing to runway 15 at Arthur Dunn airpark(X21). Precision… - [Accident 20231130022419A](https://openairdocs.org/incident/20231130022419A), Nov 30, 2023: Stinson 108-2 (N9564K), Martinsville, VA, Substantial damage. The private-certificated pilot was under instruction for a tailwheel endorsement. He was performing a wheel landing when the plane swerved to the left. He… - [Incident 20231023018619I](https://openairdocs.org/incident/20231023018619I), Oct 23, 2023: Stinson 108-2 (N9493K), Fergus Falls, MN, Minor damage. Repositioning the float plane at an airport to remove the floats and install wheels for the winter season the PIC was performing a planned landing on the grass… - [Accident 20230304001579A](https://openairdocs.org/incident/20230304001579A), Mar 4, 2023: Stinson 108 (N6532M), Lampasas, TX, Minor damage. During cruise flight the engine started to backfire and pop, PIC swithced fuel tanks with no improvement in performance. Engine stopped. PIC landed on a road… - [Accident 20220723013039A](https://openairdocs.org/incident/20220723013039A), Jul 23, 2022: Stinson 108-3 (N6020M), Batesburg Leesv, SC, Substantial damage. FAA form 8020-9: [privacy data omitted] An S108 was flying VFR squawking 1200, not talking to ATC. The aircraft lost his engine and could not get it to… - [Accident 20220216002079A](https://openairdocs.org/incident/20220216002079A), Feb 16, 2022: Stinson 108-3 (N6493M), Pahokee, FL, Substantial damage. FAA inspectors statement ? Accident investigation NTSB # ERA22LA128 Atqa no.: ASO1922029 Registration: N6493M Sas activity id: SO19202208805 Make: 1948 Stinson… - [Accident 20220127001209A](https://openairdocs.org/incident/20220127001209A), Jan 27, 2022: Universal Stinson 108-2 (N9433K), Byron, CA, Substantial damage. Aircraft was landing runway 30 at C83 Byron, CA. Aircraft touched down in 3-point configuration and began to veer left. The pilot in the left seat attempted to… - [Accident 20210627013259A](https://openairdocs.org/incident/20210627013259A), Jun 27, 2021: Stinson 108-3 (N6548M), Stevenson, WA, Destroyed. On short final a van drove across the runway from left to right. Pilot attempted to go-around at approximately 30 feet. During climb aircraft was unable to… - [Incident 20210618022579I](https://openairdocs.org/incident/20210618022579I), Jun 18, 2021: Stinson 108-3 (N6942M), Manassas, VA, Minor damage. On 6/18/2021 at 2010Z, N6942M experienced a propeller strike while landing on runway 16R. The aircraft taxied to the ramp. One person on board, no injuries.… - [Accident 20201103020659A](https://openairdocs.org/incident/20201103020659A), Nov 3, 2020: Stinson 108-3 (N6855M), El Monte, CA, Substantial damage. After landing during rollout, the aircraft began an un commanded veer to the left. The instructor pilot took control from the student and attempted to correct… - [Accident 20200917019329A](https://openairdocs.org/incident/20200917019329A), Sep 17, 2020: Stinson 108-2 (N336C), Newport, PA, Substantial damage. On 9-17-20 at around 12:15 local, a Stinson 108, NC336C lost engine power inflight near Newport, PA. The aircraft was substantially damaged during the forced… - [Accident 20200901009449A](https://openairdocs.org/incident/20200901009449A), Sep 1, 2020: Stinson 108-3 (N909C), Coleman, MI, Substantial damage. On September 1, 2020 at 11:45 eastern daylight time (EDT), a Stinson 108-3 aircraft, N909C, registered to [privacy data omitted] and operated by a private… - [Accident 20200812013739A](https://openairdocs.org/incident/20200812013739A), Aug 12, 2020: Stinson 108-2 (N9726K), Glenwood Spring, CO, Substantial damage. On August 12, 2020, the winds were calm with VFR conditions. The pilot made a three (3) point landing in the conventional gear aircraft. On rollout at about 20… - [Accident 20200708004799A](https://openairdocs.org/incident/20200708004799A), Jul 8, 2020: Universal Stinson 108-2 (N134C), Wasilla, AK, Substantial damage. The flight originated on an unmarked airstrip that was unimproved. After preflight, the pilot began his takeoff roll and after half the runway was passed the… - [Accident 20200701005359A](https://openairdocs.org/incident/20200701005359A), Jul 1, 2020: Stinson 108-3 (N6252M), Tin Creek, AK, Substantial damage. Aircraft failed to obtain takeoff speed and struck trees at end of bush strip. - [Accident 20200601010839A](https://openairdocs.org/incident/20200601010839A), Jun 1, 2020: Stinson 108-3 (N6518M), Watkins, CO, Substantial damage. On June 6, 2020 at approximately 1119 MST, N6518M, a Stinson model 108-3 aircraft was substantially damaged during an attempt to land at the Colorado Air And… - [Accident 20190925015729A](https://openairdocs.org/incident/20190925015729A), Sep 25, 2019: Stinson 108-3 (N6533M), Tyonek, AK, Substantial damage. Pilot in command/owner stated that he is familiar with the landing and takeoff area with more than six trips in and out of the unimproved surface area over the… - [Accident 20190713011399A](https://openairdocs.org/incident/20190713011399A), Jul 13, 2019: Stinson 108-2 (N9651K), Clinton, AR, Substantial damage. At approximately 1030 CT local on July 13, 2019 an ATP rated pilot and his two passengers departed from runway 31 of Clinton municipal airport (kcca) in… - [Accident 20190709004379A](https://openairdocs.org/incident/20190709004379A), Jul 9, 2019: Stinson 108-3 (N6642M), Klamath Falls, OR, Substantial damage. The aircraft departed lmt (Klamath Falls). PIC described a procedure he has been using to work around an issue with the carburetor, acceleration and full… - [Accident 20190627008129A](https://openairdocs.org/incident/20190627008129A), Jun 27, 2019: Stinson 108-3 (N6116M), Caldwell, ID, Destroyed. On June 27th at approximately 0635 N6116M was destroyed while landing short of runway 30 at Caldwell Industrial Airport (keul) due to a loss of engine power.… - [Accident 20190512000559A](https://openairdocs.org/incident/20190512000559A), May 12, 2019: Stinson 108-3 (N6392M), Soldotna, AK, Substantial damage. On may 12, 2019, at 1523 local time, N6392M, a Stinson 108-3, was substantially damaged when it flipped over after hitting a soft spot in the runway during a… - [Accident 20180902021049A](https://openairdocs.org/incident/20180902021049A), Sep 2, 2018: Stinson 108-3 (N4059C), Indiana, PA, Substantial damage. N4059C sept 4 and 6, 2018 wdg I spoke with [privacy data omitted] the flight instructor that was on board the aircraft at the time of the accident. [privacy… - [Incident 20180522005769I](https://openairdocs.org/incident/20180522005769I), May 22, 2018: Stinson 108-2 (N394C), Prineville, OR, Minor damage. Airman was landing and was coming to a stop when he inadvertently applied too much braking and nosed the aircraft over. Damage to the propeller, minor damage… - [Accident 20180427004189A](https://openairdocs.org/incident/20180427004189A), Apr 27, 2018: Stinson 108-3 (N6933M), Eliza Island, WA, Substantial damage. Aircraft was on take off roll to the south with a cross wind from the south west. The pilot realized that the runway end was quickly approaching. He attempted… - [Accident 20180311001909A](https://openairdocs.org/incident/20180311001909A), Mar 11, 2018: Stinson 108-2 (N9457K), Cedar Rapids, IA, Substantial damage. Pilot statement: On March 11, 2018 around 2:00 I went flying my Stinson 108-2; n 9457K. L was staying in the pattern to practice three point landings due to… - [Incident 20171223024819I](https://openairdocs.org/incident/20171223024819I), Dec 23, 2017: Stinson 108-2 (N949D), Granbury, TX, Minor damage. On 23 December 2017 at 1530, a Stinson 108-2, N949D, while taxiing to takeoff, encountered another aircraft crossing its path at 0TX1, applied excessive brake… - [Accident 20171026020349A](https://openairdocs.org/incident/20171026020349A), Oct 26, 2017: Stinson 108-2 (N927D), Lewiston, ID, Substantial damage. During landing rollout the pilot lost control and ground looped the airplane. As the airplane veered right and departed the runway, the left wingtip struck the… - [Accident 20170516018579A](https://openairdocs.org/incident/20170516018579A), May 16, 2017: Stinson 108-2 (N9366K), West Creek, NJ, Substantial damage. On may 17, 2017 at 20:32 local time, a Stinson 108-2 experienced an engine failure that led to a loss of power and in-flight fire. The aircraft was… - [Accident 20170407006219A](https://openairdocs.org/incident/20170407006219A), Apr 7, 2017: Stinson 108-2 (N9363K), Wooddruff, WI, Substantial damage. On April 07, 2017 at 1300 locl time, N9363K a Stinson 108-2 was conducting a training flight practicing landings at the Lakeland Noble f. lee airport, minaqua… - [Accident 20170220002689A](https://openairdocs.org/incident/20170220002689A), Feb 20, 2017: Stinson 108-2 (N9277K), Valparaiso, IN, Substantial damage. During landing rollout, N92477 rolled off of runway. This caused the main landing gears on the aircraft to roll into soft ground resulting in the aircraft… - [Accident 20161216022149A](https://openairdocs.org/incident/20161216022149A), Dec 16, 2016: Stinson 108-3 (N812C), Ionia, MI, Substantial damage. On December 16, 2016 at 1045 eastern standard time, a Stinson 108-3 aircraft, N812C, registered to and operated by a private pilot, received substantial damage… - [Accident 20161006019919A](https://openairdocs.org/incident/20161006019919A), Oct 6, 2016: Stinson 108-3 (N4210C), Rifle Garfield, CO, Substantial damage. The airman recently acquired the aircraft and was taking it for it's madien flight. The airman stated that he was too fast at touch down which resulted in a… - [Accident 20160805013449A](https://openairdocs.org/incident/20160805013449A), Aug 5, 2016: Stinson 108-2 (N9250K), Sunriver, OR, Substantial damage. The pilot in command did not adequately correct for left crosswind during landing and allowed the Stinson S-108 airplane to drift right of centerline at… - [Accident 20160722011419A](https://openairdocs.org/incident/20160722011419A), Jul 22, 2016: Stinson 108-2 (N8019K), Dodge Center, MN, Substantial damage. The aircraft took off from mankato airport after refueling. While enroute the airplane's engine started losing power. The pilot attempted to trouble shoot, but… - [Accident 20160708013809A](https://openairdocs.org/incident/20160708013809A), Jul 8, 2016: Stinson 108-3 (N955C), Red Lodge, MT, Substantial damage. On 7/8/16, at 1510 MST, a Stinson 108-3, N955C, registered to the pilot taxied to runway 16 at Red Lodge, MT (red) and performed the engine runup. During the… - [Incident 20160601008489I](https://openairdocs.org/incident/20160601008489I), Jun 1, 2016: Stinson 108-2 (N18F), Danielson, CT, Minor damage. PIC indicated to me that he was set up for a landing at klzd, flared for landing ,high and slow hit by crosswind and impacted runway, bounced over on to prop,… - [Accident 20160506003649A](https://openairdocs.org/incident/20160506003649A), May 6, 2016: Stinson 108-2 (N8068K), Batavia, OH, Substantial damage. Upon touchdown the aircraft began to yaw to the left and the pilot was unable to stop the aircraft. The aircraft went off the runway, and flipped on its back.… - [Accident 20160225003619A](https://openairdocs.org/incident/20160225003619A), Feb 25, 2016: Stinson 108-3 (N862C), Livermore, CA, Substantial damage. Aircraft was landing at Livermore, CA. (Lvk) runway 25L, after touch down aircraft veered off runway, ground looped in tall grass between runways with left… - [Accident 20150920016479A](https://openairdocs.org/incident/20150920016479A), Sep 20, 2015: Stinson 108-3 (N6066M), Palmer, AK, Substantial damage. N6066M, a Stinson S108 aircraft, was attempting to land at the "picnic table airstrip," which is located near the base of the knik glacier (approximately… - [Accident 20150725012709A](https://openairdocs.org/incident/20150725012709A), Jul 25, 2015: Stinson 108-3 (N6152M), North Las Vegas, NV, Substantial damage. 3000 Feet and 100 yards past the tower N6152M seemed to lose power. The pilot checked the oil pressure and temp and everything looked good, power came back but… - [Incident 20141114020239I](https://openairdocs.org/incident/20141114020239I), Nov 14, 2014: Stinson 108-3 (N516C), Allentown, PA, Minor damage. Aircraft departed abe, landed and departed xll without incident, pilot decided to return to abe where aircraft is domiciled due to winds. Aircraft landed… All 394: https://openairdocs.org/engine/franklin-6a4165-series/incidents.md ## Service difficulty reports (7) As reported by operators and repair stations, by the model named in the report. - [SDR 2020FA0000073](https://openairdocs.org/sdr/2020FA0000073), Nov 13, 2018: GEAR. FAILED. UPON DISASSEMBLY IT WAS DETERMINED CRANKSHAFT TO CAMSHAFT GEAR 17725 FAILED, IT APPEARS IT WAS IMPROPERLY INSTALLED AT OVERHAUL THE GEAR HAS INDICATIONS OF MOVI - [SDR 2011FA0000372](https://openairdocs.org/sdr/2011FA0000372), May 24, 2011: TERMINAL. MELTED. THE POSITIVE STUD MELTED OUT FROM THE ARMMETER AND THE ACFT LOST POWER TO THE BUSS BAR. - [SDR 2009FA0000850](https://openairdocs.org/sdr/2009FA0000850), Aug 3, 2009: GEAR. FRACTURED. ON A FLIGHT THE ENGINE STOPPED SUDDENLY WITH NO WARNING. THE AIRCRAFT LANDED. THE ENGINE ACCESSORY CASE HAD MAJOR DAMAGE. THE MAGNETOS WERE BROKEN AWAY FROM THE - [SDR 2006FA0000238](https://openairdocs.org/sdr/2006FA0000238), Feb 25, 2006: LANDING GEAR. FAULTY. THIS LANDING GEAR RETRACTED AT TOUCH-DOWN. AIRCRAFT WAS IN STORAGE FOR A NUMBER OF YEARS. IT WAS PUT BACK IN SERVICE THE SUMMER OF 2005. THE LANDING GEAR WAS OV - [SDR 2005FA0000985](https://openairdocs.org/sdr/2005FA0000985), Jul 1, 2005: STARTER. INOPERATIVE. THIS STARTER MOTOR REPORTED TO BE INOPERATIVE. PLACED IN SERVICE 3/1/2005. REMOVED FROM SERVICE 6/16/2005. - [SDR M0539](https://openairdocs.org/sdr/M0539), Aug 27, 2004: BULKHEAD. CRACKED. DURING ANNUAL INSPECTION, FOUND AFT TAILBOOM BULKHEAD PN 206030446001 CRACKED AT LT BOLT HOLE FOR TAIL ROTOR GEARBOX MOUNT. - [SDR 2001FA0000457](https://openairdocs.org/sdr/2001FA0000457), Oct 16, 2001: CRANKSHAFT. BROKEN. CRANKSHAFT BROKEN IN FLIGHT, LANDED WITHOUT INCIDENT. CRANKSHAFT BROKEN ON THE FORWARD SIDE OF JOURNAL NR 1 CYLINDER. ## STCs that may be installed (OpenAirDocs) (12) Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [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 6A4-165-B3 - [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. Lists 6A4-165-B3 - [STC SE1311SO](https://openairdocs.org/stc/SE1311SO): Installation of Shivers carburetor temperature gauge with a Richter Aero Equipment B-5 carburetor temperature probe. LegacySTC.com. Lists 6A4-165-B3 - [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc. Lists 6A4-165-B3 - [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 6A4-165-B3 - [STC SE4178NM](https://openairdocs.org/stc/SE4178NM): Installation of oil filter kit. Franklin Aircraft Engines Inc. Lists 6A4-165-B3 - [STC SE3331NM](https://openairdocs.org/stc/SE3331NM): Lycoming valve cover gasket. Real Gaskets Tennessee. Lists 6A4-165-B4 - [STC SE110CH](https://openairdocs.org/stc/SE110CH): Installation of Slick Model 6399 magnetos. Champion Aerospace LLC. Lists 6A4-165-B3 - [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. Lists 6A4-165-B4 - [STC SE1696GL](https://openairdocs.org/stc/SE1696GL): Installation of nose seal retainer. Skaggs Robert G. Lists 6A4-165-B3 - [STC SE2127CE](https://openairdocs.org/stc/SE2127CE): 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. Lists 6A4-165-B3 - [STC SE4-1192](https://openairdocs.org/stc/SE4-1192): Adapter to permit Bendix Scintilla magneto installation, Type SF6LN-8, and modification of carburetor- manifold adapter box. Van De Water Devel Co. Lists 6A4-165-B3 ## PMA parts (OpenAirDocs) (189, first 50) Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first. - [72-231114-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126488040520260722204349.0001): TAG-Engine. Swift Fuels, LLC · PMA PQ04423CE · Modification part · Jul 17, 2026 - [AB-160844](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172896150720251216184414.0001): Spring & Brush Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-160844 · Nov 10, 2025 - [AB-90751-19](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191643992120251216184502.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-90751-19 · Dec 8, 2023 - [AB-357426](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184238701620251216184448.0001): Distributor Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-357426 · Dec 8, 2023 - [AB-382585](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174195818620251216184454.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382585 · Dec 8, 2023 - [AB-400623](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168816889220251216184444.0001): Ball Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental… · Dec 8, 2023 - [AB-357174](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID160990699020251216184451.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357174 · Dec 8, 2023 - [AB-157160](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158401184520251216184437.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-157160 · Dec 8, 2023 - [AB-157158](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158219565620251216184432.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental MotorsP/N: 10-157158 · Dec 8, 2023 - [AB-51678](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157802434020251216184508.0001): Oil Deflector. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-51678 · Dec 8, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149337649120251216184433.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 8, 2023 - [ES10-35936-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148471542220251216184429.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35936-7 · Dec 8, 2023 - [AB-382584](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126776576020251216184455.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382584 · Dec 8, 2023 - [AB-349511](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120405838820251216184440.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-349511 · Dec 8, 2023 - [AB-349326](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116200064020251216184456.0001): Fish Paper. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349326 · Dec 8, 2023 - [AB-349263](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113648021920251216184506.0001): O-Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349263 · Dec 8, 2023 - [AB-357173](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105495468820251216184452.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357173 · Dec 8, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197131308520240301172645.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168354325020240301172638.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145217999320240301172658.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118323347220240301172648.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID102475767020240301172654.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176360833820240301172648.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172762233220240301172632.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163685509620240301172639.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162371588220240301172654.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150014931220240301172641.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141585254820240301172654.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123063929720240301172657.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115495300220240301172646.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104850212020240301172638.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID102201684720240301172637.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [TA2927-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143759258820231109131601.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023 - [TA2927-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118936882120231109131600.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023 - [ES10-400549-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158172130220230929175036.0001): 200 Series Frame, Lyc Flange. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-400549-2 · Jul 17, 2023 - [ES10-400551-8](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178086668520231025135112.0001): Housing, Distributor. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-400551-8 · Apr 1, 2023 - [ES10-25788](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197042042020230703154012.0001): Bearing, Sleeve. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-357078, 10-25788, 736 · Mar 20, 2023 - [ES10-56513](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157880742420230502200206.0001): Pin, Stop. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-56513 · Feb 9, 2023 - [ES10-357165-20](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117084116020220725141437.0001): Coil, Magneto. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-357165-20, 10-357164-1 · Jun 9, 2022 - [AC-F17794](https://drs.faa.gov/browse/excelExternalWindow/914BBF6822F6710586258629005B50E0.0001): Packing, Valve Lifter Rod Tube. Airmotive Components LLC North Fabrication Shop · PMA PQ04438CE · Replaces 17794 · Nov 16, 2020 - [AC-F10246](https://drs.faa.gov/browse/excelExternalWindow/87BFEECB719B7C6F86258629005B5066.0001): Bushing, Engine Mount Rubber. Airmotive Components LLC North Fabrication Shop · PMA PQ04438CE · Replaces 10246 · Nov 16, 2020 - [AC-F17864](https://drs.faa.gov/browse/excelExternalWindow/0929AE6FDAAFB5C286258629005B50A0.0001): Packing, Valve Lifter Rod Tube. Airmotive Components LLC North Fabrication Shop · PMA PQ04438CE · Replaces 17864 · Nov 16, 2020 - [AEF17722](https://drs.faa.gov/browse/excelExternalWindow/E46204402452C762862585930032AB9F.0001): Bearing, Crankshaft Gear End, Even Cylinder Nos.. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 17722 · Jan 6, 2020 - [AEF19313](https://drs.faa.gov/browse/excelExternalWindow/E2DD2D059098B9B38625858B00324FA7.0001): Absorber, Magneto Drive. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 19313 · Jan 6, 2020 - [AEF17723](https://drs.faa.gov/browse/excelExternalWindow/E09FC2943D7A1939862585930032ABCF.0001): Bearing, Crankshaft Propeller End, Odd Cylinder Nos.. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 17723 · Jan 6, 2020 - [AEF20544](https://drs.faa.gov/browse/excelExternalWindow/E05100593CC405EC862585930032B1BC.0001): Liner, Cylinder. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 20544 · Jan 6, 2020 - [AEF18028](https://drs.faa.gov/browse/excelExternalWindow/DE1A160A39E6D506862585930032AEE3.0001): Bearing, Crankshaft, Center, Even Cylinder Nos. (.010 OS). Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 18028 · Jan 6, 2020 - [AEF18022](https://drs.faa.gov/browse/excelExternalWindow/DAF48C1A7635C2978625858B00324F75.0001): Bearing, Crankshaft Propeller End, Odd Cylinder Nos. (.010 U.S.). Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 18022 · Jan 6, 2020 - [AEF17808](https://drs.faa.gov/browse/excelExternalWindow/D5976C45FF0EBBAE862585930032AC6D.0001): Bearing, Thrust. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 17808 · Jan 6, 2020 - [AEF18030](https://drs.faa.gov/browse/excelExternalWindow/D2E923AB1967B80B862585930032AF3C.0001): Bearing, Crankshaft, Gear End, Odd Cylinder Nos. (.010 OS). Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 18030 · Jan 6, 2020 All of them: https://openairdocs.org/engine/franklin-6a4165-series/pma.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.