# STCs that may be installed: N41DN A list on [N41DN](https://openairdocs.org/aircraft/N41DN.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. Page 1 of 3 · 110 STCs - [STC SE5583SW](https://openairdocs.org/stc/SE5583SW.md): Installation of fuel flow transducers (true-flow totalizer). · Alcor LLC - [STC SE04349CH](https://openairdocs.org/stc/SE04349CH.md): Installation of SureFly electronic ignition · SureFly Partners Ltd. · Lists TSIO-520-A - [STC SE02352CH](https://openairdocs.org/stc/SE02352CH.md): Installation of Challenger cleanable oil filter assembly · Challenger Aviation Products Inc. · Lists TSIO-520-A - [STC SE3248NM](https://openairdocs.org/stc/SE3248NM.md): Installation of air to air intercooler in engine induction system. · Western Skyways Aircraft Modifications Inc. · Lists TSIO-520-C - [STC SE5009NM](https://openairdocs.org/stc/SE5009NM.md): Installation of a modified exhaust system. · Aerospace Welding Minneapolis Inc. · Lists TSIO-520-C - [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. · Lists TSIO-520-A - [STC SE57WE](https://openairdocs.org/stc/SE57WE.md): Installation of two (2) Roto-Master 3DT5FF10J2, P/N 600572-00 (formerly Rajay Model No. 315F10 P/N RJ0080-100, -101, or - 102) turbochargers · TALCO Aviation · Lists TSIO-520-D - [STC SE2529NM](https://openairdocs.org/stc/SE2529NM.md): Installation of an air to air intercooler in the engine induction system downstream of the turbocharger. · Western Skyways Aircraft Modifications Inc. · Lists TSIO-520-AF - [STC SE2599NM](https://openairdocs.org/stc/SE2599NM.md): Installation of an air intercooler in the engine induction system downstream of the turbocharger. · Western Skyways Aircraft Modifications Inc. · Lists TSIO-520-C - [STC SE3782NM](https://openairdocs.org/stc/SE3782NM.md): Installation of an intercooler in the engine air induction system. · Western Skyways Aircraft Modifications Inc. · Lists TSIO-520-M - [STC SE3932NM](https://openairdocs.org/stc/SE3932NM.md): Installation of an intercooler in the engine air induction system. · Western Skyways Aircraft Modifications Inc. · Lists TSIO-520-R - [STC SE04577CH](https://openairdocs.org/stc/SE04577CH.md): Install an electronic engine ignition system · Electroair Acquisition Corp · Lists TSIO-520-A - [STC SE09356SC](https://openairdocs.org/stc/SE09356SC.md): Install F & M Enterprises' Model C6LC, C6LC-S or C6LC-L oil filter adapter for a spin-on oil filter · Stratus Tool Technologies LLC · Lists TSIO-520-A - [STC SE4988NM](https://openairdocs.org/stc/SE4988NM.md): Remove turbocharger and fuel injection system and install carburetor. · North Point Aviation · Lists TSIO-520-C - [STC SE96WE](https://openairdocs.org/stc/SE96WE.md): Installation of oil fitting(AN-823-5D) in rocker box cover. · Airwolf Filter Corporation · Lists TSIO-520-A - [STC SE09908AC](https://openairdocs.org/stc/SE09908AC.md): Conversion of Continental Motors, Inc. (CMI) model TSIO-520-UB to RAM model IO-550-B-RA engine · RAM Aircraft Limited Partnership · Lists TSIO-520-UB - [STC SE0417CH](https://openairdocs.org/stc/SE0417CH.md): Turbo-normalization · Western Skyways Aircraft Modifications Inc. · Lists TSIO-520-C - [STC SE00113SE](https://openairdocs.org/stc/SE00113SE.md): Replaces Teledyne-Continental Part Number 646277 lifter bodies · B & B Aviation LLC · Lists TSIO-520-B - [STC SE5784NM](https://openairdocs.org/stc/SE5784NM.md): Replacement of Teledyne Continental original camshaft. · B & B Aviation LLC · Lists TSIO-520-AF - [STC SE5785NM](https://openairdocs.org/stc/SE5785NM.md): Replacement of Teledyne Continental original camshaft with P/N 32122-2. · B & B Aviation LLC · Lists TSIO-520-B - [STC SE03415CH](https://openairdocs.org/stc/SE03415CH.md): The turbo-normalization of Continental Motors engine models IO-520-A, -F, -J, and -L, TSIO-520-C, -G, -H, -M, and -R, and IO-550-F and L for installation into Cessna 206, 207 & 210 aircraft · DERS Group Svc LLC · Lists TSIO-520-C - [STC SE70RM](https://openairdocs.org/stc/SE70RM.md): Installation of compressor bracket · Air Comm Corporation · Lists TSIO-520-A - [STC SE09637SC](https://openairdocs.org/stc/SE09637SC.md): Remove existing rocker arm assemblies and install modify rocker arm assemblies. · General Aviation Modifications Inc. · Lists TSIO-520-A - [STC SE1462CE](https://openairdocs.org/stc/SE1462CE.md): Installation of SSP Products P/N 3208672-91 heater core and P/N 3208677-104 shroud. · Textron Aviation Inc · Lists TSIO-520-T - [STC SE2393NM](https://openairdocs.org/stc/SE2393NM.md): Installation of a magneto pressurization kit assembly and associated system for Bendix Models S6RN-1201 and 1205, and SLICK Models 662, 680, 6210 and 6220. · Turboplus Aircraft Systems, Inc. · Lists TSIO-520-AF - [STC SE1186SW](https://openairdocs.org/stc/SE1186SW.md): Regrooving of pistons P/N 631475 or P/N 632585 · Continental Motors, Inc. · Lists TSIO-520-A - [STC SE2340SW](https://openairdocs.org/stc/SE2340SW.md): Installation of modified cylinder assemblies, barrels, piston, and repaired crankcases. · Continental Motors, Inc. · Lists TSIO-520-A - [STC SE5820SW](https://openairdocs.org/stc/SE5820SW.md): Installation of Airmotive exhaust valve, P/N AEC-637781. · Continental Motors, Inc. - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW.md): Installation of coated cylinders and piston rings. · Continental Motors, Inc. - [STC SE04117CH](https://openairdocs.org/stc/SE04117CH.md): Conversion of Continental Motors engine models TSIO-520-C, -G, -H, -M & -R to the naturally aspirated IO-520-A, -F, -J & -L · Western Skyways · Lists TSIO-520-C - [STC SE3330NM](https://openairdocs.org/stc/SE3330NM.md): Continental valve cover gasket · Real Gaskets Tennessee · Lists TSIO-520-B - [STC SE00081LA](https://openairdocs.org/stc/SE00081LA.md): Modification of induction system. · TC SKYROCKET LLC · Lists TSIO-520-NB - [STC SE09280SC-D](https://openairdocs.org/stc/SE09280SC-D.md): Modify engine in accordance with RAM Aircraft Corporation Drawing No. 1888. · RAM Aircraft Limited Partnership · Lists TSIO-520-B - [STC SE09281SC-D](https://openairdocs.org/stc/SE09281SC-D.md): Modify engine in accordance with RAM Aircraft Corporation Drawing Number 1891. · RAM Aircraft Limited Partnership · Lists TSIO-520-B - [STC SE3632SW-D](https://openairdocs.org/stc/SE3632SW-D.md): Installation of induction hose clamps. · RAM Aircraft Limited Partnership · Lists TSIO-520-B - [STC SE09016SC-D](https://openairdocs.org/stc/SE09016SC-D.md): Modify IAW RAM Drawing No. 1742. · RAM Aircraft Limited Partnership · Lists TSIO-520-BE - [STC SE09104SC-D](https://openairdocs.org/stc/SE09104SC-D.md): Modify Teledyne Continental TSIO-520-NB engine. Maximum continuous power is 335 hp at 2700 rpm and 38.0 inches Hg manifold pressure. This mod is limited to Teledyne Continental motors model TSIO-520-NB engines modified per STC SE4327SW. · RAM Aircraft Limited Partnership · Lists TSIO-520-NB - [STC SE09259SC-D](https://openairdocs.org/stc/SE09259SC-D.md): Installation of RAM Aircraft Corporation oil cooler. · RAM Aircraft Limited Partnership · Lists TSIO-520-NB - [STC SE09282SC-D](https://openairdocs.org/stc/SE09282SC-D.md): Modify engine in accordance with RAM Aircraft Corporation Drawing Number 1892. · RAM Aircraft Limited Partnership · Lists TSIO-520-BB - [STC SE09653SC-D](https://openairdocs.org/stc/SE09653SC-D.md): Installation of RAM Induction Equalized Fuel Nozzle Set. · RAM Aircraft Limited Partnership · Lists TSIO-520-B - [STC SE4327SW-D](https://openairdocs.org/stc/SE4327SW-D.md): Increase all operations power rating to 325 horse power (HP) at 40 inches of manifold pressure (MP) and 2700 RPM. · RAM Aircraft Limited Partnership · Lists TSIO-520-NB - [STC SE3631SW-D](https://openairdocs.org/stc/SE3631SW-D.md): Cylinder modifications. · RAM Aircraft Limited Partnership · Lists TSIO-520-A - [STC SE5726SW-D](https://openairdocs.org/stc/SE5726SW-D.md): Installation of Floscan - 20lb or - 203b fuel flow transducers. · RAM Aircraft Limited Partnership · Lists TSIO-520-B - [STC SE2831SW-D](https://openairdocs.org/stc/SE2831SW-D.md): Installation of Bendix S6RN-1251 and S6RN-1255 magnetos. · RAM Aircraft Limited Partnership · Lists TSIO-520-N - [STC SE3714SW-D](https://openairdocs.org/stc/SE3714SW-D.md): Install RAM economy camshaft and modified cylinders. · RAM Aircraft Limited Partnership · Lists TSIO-520-N - [STC SE09846SC](https://openairdocs.org/stc/SE09846SC.md): Installation of S539800M30 starter adapter springs. · Aircraft Specialties Services Inc · Lists TSIO-520-AF - [STC SE444GL](https://openairdocs.org/stc/SE444GL.md): Incorporation of a fuel flow transducer. · Shadin Avionics · Lists TSIO-520-AE - [STC SE630SW](https://openairdocs.org/stc/SE630SW.md): Engine modifications · RAM Aircraft Limited Partnership · Lists TSIO-520-AF - [STC SE4651SW](https://openairdocs.org/stc/SE4651SW.md): Installation of Slick pressurized magnetos. Also eligible on Teledyne Continental TSIO-520-NB engines modified per STC SE4327SW. · RAM Aircraft Limited Partnership · Lists TSIO-520-A - [STC SE1780NM](https://openairdocs.org/stc/SE1780NM.md): Installation of Precise Flight standby vacuum system (SVS III). · Precise Flight Inc · Lists TSIO-520-A Next page: https://openairdocs.org/aircraft/N41DN/stcs.md?page=2 ## 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 = '1970120' UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '17040') 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/N41DN/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.