# STCs that may be installed: N337KT A list on [N337KT](https://openairdocs.org/aircraft/N337KT.md). Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do. In force first, then newest. - [STC SE5583SW](https://openairdocs.org/stc/SE5583SW.md): Installation of fuel flow transducers (true-flow totalizer). · Alcor LLC · Lists TSIO-360 Series - [STC SE04349CH](https://openairdocs.org/stc/SE04349CH.md): Installation of SureFly electronic ignition · SureFly Partners Ltd. - [STC SE02352CH](https://openairdocs.org/stc/SE02352CH.md): Installation of Challenger cleanable oil filter assembly · Challenger Aviation Products Inc. - [STC SE03309CH](https://openairdocs.org/stc/SE03309CH.md): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application · Hartzell Propeller Inc. - [STC SE04577CH](https://openairdocs.org/stc/SE04577CH.md): Install an electronic engine ignition system · Electroair Acquisition Corp - [STC SE01966WI](https://openairdocs.org/stc/SE01966WI.md): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines · General Aviation Modifications Inc. - [STC SE8409SW](https://openairdocs.org/stc/SE8409SW.md): Installation of P/N CO-300-1 Oil Filter Adaptor with spin-on filter as a replacement for the existing oil screen · Stratus Tool Technologies LLC - [STC SE4177NM](https://openairdocs.org/stc/SE4177NM.md): Installation of a pressurized magneto system for Bendix Models S6RN-25 and S6LN-25, or Slick Models 6214 (6210 for LTSIO) or Model 6224 (6220 for LTSIO). · Turboplus Aircraft Systems, Inc. - [STC SE4303NM](https://openairdocs.org/stc/SE4303NM.md): Installation of a magneto pressurization kit assembly and associated system for Bendix Models S6RN-25 and S6LN-25, or SLICK Models 6214 (6210 for LTSIO) or Model 6224 (6220 for LTSIO). · Turboplus Aircraft Systems, Inc. - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW.md): Installation of coated cylinders and piston rings. · Continental Motors, Inc. - [STC SE3330NM](https://openairdocs.org/stc/SE3330NM.md): Continental valve cover gasket · Real Gaskets Tennessee - [STC SE4505NM](https://openairdocs.org/stc/SE4505NM.md): Installation of intercooler in engine air induction system. · TC SKYROCKET LLC - [STC SE5032NM](https://openairdocs.org/stc/SE5032NM.md): Installation of Teledyne Cont. Motor pressurized magnetos, kit no. EQ6565. · TC SKYROCKET LLC - [STC SE09846SC](https://openairdocs.org/stc/SE09846SC.md): Installation of S539800M30 starter adapter springs. · Aircraft Specialties Services Inc - [STC SE624GL](https://openairdocs.org/stc/SE624GL.md): Incorporation of a fuel flow transducer. · Shadin Avionics - [STC SE1760NM](https://openairdocs.org/stc/SE1760NM.md): Installation of a pressurized magneto system for Bendix models S6RN-25 and S6LN-25. · Sky Services Inc - [STC SE1780NM](https://openairdocs.org/stc/SE1780NM.md): Installation of Precise Flight standby vacuum system (SVS III). · Precise Flight Inc - [STC SE5743NM](https://openairdocs.org/stc/SE5743NM.md): Intallation of adapter for externally mounted oil filter. · Aviation Development Corporation - [STC SE3864NM](https://openairdocs.org/stc/SE3864NM.md): Installation of American Aviation intercooler and associated systems. · American Aviation Inc - [STC SE09401SC](https://openairdocs.org/stc/SE09401SC.md): Installation of modified fuel injector nozzles. · General Aviation Modifications, Inc. - [STC SE00577NY](https://openairdocs.org/stc/SE00577NY.md): Installation of Canadian Aero Mfg. (C.A.M.) Oil Coolers. · Canadian Aero Manufacturing - [STC SE00350SE](https://openairdocs.org/stc/SE00350SE.md): Installation of sump mounted chip detector. · Aviation Development Corporation - [STC SE00427NY](https://openairdocs.org/stc/SE00427NY.md): Installation, operation and inspection of CAM oil coolers. · Canadian Aero Manufacturing - [STC SE4527NM](https://openairdocs.org/stc/SE4527NM.md): Limited to installation on serial numbers 230735 and 230678 ONLY. Intallation of an intercooler in engine air induction system. · Riley Aircraft Corp - [STC SE452NE](https://openairdocs.org/stc/SE452NE.md): Installation and usage of 'Mobil AV 1' aviation oil. · Mobil Research & Development Corp · Lists TSIO-360 Series - [STC SE5879SW](https://openairdocs.org/stc/SE5879SW.md): 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 TSIO-360 Series - [STC SE80NE](https://openairdocs.org/stc/SE80NE.md): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. · Bel-Ray Company, Inc · Lists TSIO-360 Series - [STC SE235GL](https://openairdocs.org/stc/SE235GL.md): Installation of a steel pin in Continental fuel pump P/N 634263(TSIO-360-A, -B), 639508 (TSIO-360-C, -D, -E, -F), and 639508(LTSIO-360-E). · Approved Aircraft Accessories, Inc. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT m.matched_by, s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model FROM ( SELECT stc_number, min(side) AS side, arg_min(matched_by, side) AS matched_by, arg_min(matched_model, side) AS matched_model FROM (SELECT stc_number, 1 AS side, 'airframe' AS matched_by, matched_model FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet' WHERE aircraft_model_code = '7535726' UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '17283') GROUP BY stc_number ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number) ORDER BY m.side, s.status = 'Current' DESC, s.status_date DESC, s.stc_number ``` This list as a web page: https://openairdocs.org/aircraft/N337KT/stcs --- 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.