# STCs that may be installed: N705T A list on [N705T](https://openairdocs.org/aircraft/N705T.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 SA04652CH](https://openairdocs.org/stc/SA04652CH.md): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification · Swift Fuels LLC - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI.md): To allow the use of UL91 or UL94 (minimum) grade aviation fuel · Swift Fuels LLC - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI.md): To allow the use of UL91 (minimum) grade aviation fuel · Petersen Aviation Inc - [STC SA4-1007](https://openairdocs.org/stc/SA4-1007.md): Installation of balance weights(Brittain Aircraft P/N 3010) on leading edge of Navion ailerons. · General Aviation Modifications Inc. - [STC SA4-1028](https://openairdocs.org/stc/SA4-1028.md): Installation of Brittain Industries 20-gallon wing tip tanks. · General Aviation Modifications Inc.. - [STC SA605WE](https://openairdocs.org/stc/SA605WE.md): Installation of Brittain Industries, Inc. Model B-4 Flight Control System, including PC-1 Pitch Assist, AH-1 Altitude Hold and NAV-1 Navigation Coupler · Brittain Industries, Inc - [STC SA4553SW](https://openairdocs.org/stc/SA4553SW.md): Installation of Brittain Model NAV Flite IV Model BI-825 system or B5C Model BI826 system · Brittain Industries, Inc - [STC SA4-920](https://openairdocs.org/stc/SA4-920.md): Installed Brittain/Clarkson Autopilot · Brittain Industries, Inc - [STC SA487WE](https://openairdocs.org/stc/SA487WE.md): Installation of Brittain Pitch Assist PC-1 and Altitude Hold AH-1 · Brittain Industries, Inc - [STC SA644WE](https://openairdocs.org/stc/SA644WE.md): Installation of Brittain Dynertial Pitch Assist, Model PC-1 and optional Altitude Hold, Model AH-1 · Brittain Industries, Inc - [STC SA662WE](https://openairdocs.org/stc/SA662WE.md): Installation of Brittain Industries, Inc., Model B1-400 Hi-Lo Sensitivity Adaptor · Brittain Industries, Inc - [STC SA1488WE](https://openairdocs.org/stc/SA1488WE.md): Installation of Brittain Industries, Inc. Model B2C Flight Control System · Brittain Industries, Inc - [STC SA1315WE](https://openairdocs.org/stc/SA1315WE.md): Installation of Mixture Monitor (exhaust gas temperature probe, gage and selector) in accordance with Delta Products Part Lists A-192 and A-193, or in accordance with Tri-Star Corporation Mixture Monitor Installation Instructions dated December 9, 1981, or later FAA approved revision and/or Drawing List MM-127 dated November 15, 1981, or later FAA approved revision in aircraft models listed in Master Eligibility List P-80-A-6 revised March 29, 1968, copy attached, or later FAA approved revision. · Universal Corporation - [STC SA4-1165](https://openairdocs.org/stc/SA4-1165.md): Installation of Firestone Model DFA-180 or Bodell BMI-2000 wheel in lieu of Firestone 6C5 or Goodrich 613MD wheel (on nose gear). · Skybound Manufacturing Inc. - [STC SA489EA](https://openairdocs.org/stc/SA489EA.md): Installation of ARP Inc. carburetor ice detection system · Aircraft & Rotorcraft Products (ARP) Inc - [STC SA3328SO](https://openairdocs.org/stc/SA3328SO.md): Install landing gear wheel cover. · Goldman Don - [STC SA144SO](https://openairdocs.org/stc/SA144SO.md): Installation of control wheel. · Garcia Joaquin - [STC SA308EA](https://openairdocs.org/stc/SA308EA.md): Installation of carburetor ice detection system 105AP in single and twin engine aircraft and single engine helicopters powered by Continental, Franklin, and Lycoming type engines equipped with Marvel-Schebler MA-2, MA-3, MA-4, MA-4-5, MA-6 and HA-6 series carburetors. (Normal,Utility and Acrobatic Category airplanes and helicopters equipped with engines and carburetors as described.) · Alfred R Puccinelli - [STC SA54WE](https://openairdocs.org/stc/SA54WE.md): Installation of single-piece windshield and side windows. · Cal Aero Industries, Inc - [STC SA268SW](https://openairdocs.org/stc/SA268SW.md): Installation of Mitchell automatic pilot model AK116. · Mitchell Industries, Inc - [STC SA162EA](https://openairdocs.org/stc/SA162EA.md): Modification of Navion retract link assembly 145-34106. · Rudolph Chalow - [STC SA200CE](https://openairdocs.org/stc/SA200CE.md): Nose and main gear retracting link replacement. · Western Machine Repair Service - [STC SA278SO](https://openairdocs.org/stc/SA278SO.md): Main and nose landing gear retract links. · William E Freeman - [STC SA353EA](https://openairdocs.org/stc/SA353EA.md): Nose section modified. · Liebolt John - [STC SA4-925](https://openairdocs.org/stc/SA4-925.md): Magnetic flight director 2000. · Clarkson Company - [STC SA1-396](https://openairdocs.org/stc/SA1-396.md): Navion retract links 143-33165 and 143-33165-10 modified. · Rudolph Chalow - [STC SE04651CH](https://openairdocs.org/stc/SE04651CH.md): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22 · Swift Fuels LLC · Lists O-340-B1A - [STC SE2932SW](https://openairdocs.org/stc/SE2932SW.md): 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 SE04349CH](https://openairdocs.org/stc/SE04349CH.md): Installation of SureFly electronic ignition · SureFly Partners Ltd. · Lists O-340-A1A - [STC SE01954SE](https://openairdocs.org/stc/SE01954SE.md): Installation of engine crankcase seal. · Ly-Con Rebuilding Company · Lists O-340-A1A - [STC SE03232CH](https://openairdocs.org/stc/SE03232CH.md): Installation of Engine Preheat Kit p/n TA2925-1 for 115 volt application · Hartzell Propeller Inc. · Lists O-340-A1A - [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. · Lists O-340-B1A - [STC SE8628SW](https://openairdocs.org/stc/SE8628SW.md): Installation of oil nozzles for lubrication of cam and filters. · Cygnet Aerospace Corp · Lists O-340-A1A - [STC SE4408SW](https://openairdocs.org/stc/SE4408SW.md): Miscellaneous engine cylinder replacement parts. · Continental Motors, Inc. - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW.md): Installation of coated cylinders and piston rings. · Continental Motors, Inc. - [STC SE8193SW](https://openairdocs.org/stc/SE8193SW.md): Grind nitriden high compression cylinder barrles to plus.010 oversize and install SL75089 P10 piston, SL74242 P10 compression ring, and SL73857 P10 oil ring. · Superior Air Parts Inc. · Lists O-340-A1A - [STC SE1779NM](https://openairdocs.org/stc/SE1779NM.md): Installation of Precise Flight, Inc. Standby Vacuum System SVS III · Precise Flight Inc · Lists O-340-A1A - [STC SE1-201](https://openairdocs.org/stc/SE1-201.md): 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.md): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. · Exxon Company USA - [STC SE8023SW](https://openairdocs.org/stc/SE8023SW.md): Installation and usage of AEROSHELL · Shell Development Co - [STC SE452NE](https://openairdocs.org/stc/SE452NE.md): Installation and usage of 'Mobil AV 1' aviation oil. · Mobil Research & Development Corp - [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 - [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 - [STC SE128NE](https://openairdocs.org/stc/SE128NE.md): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. · AMS/OIL ## 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 = '9230604' UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41510') 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/N705T/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.