# STCs that may be installed: N9151T A list on [N9151T](https://openairdocs.org/aircraft/N9151T.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 SH3319NM](https://openairdocs.org/stc/SH3319NM.md): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system, · Precise Flight Inc - [STC SR02704SE](https://openairdocs.org/stc/SR02704SE.md): Installation and maintenance of the Sunspot 36 and 46 series lights · AeroLED's Holdings LLC - [STC SR00359BO](https://openairdocs.org/stc/SR00359BO.md): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. · Whelen Aerospace Technologies - [STC SR01845SE](https://openairdocs.org/stc/SR01845SE.md): Installation of a barrier air filtration system · Cascade Flying Service LLC - [STC SR00420NY](https://openairdocs.org/stc/SR00420NY.md): Installation of Airwolf remote mounted engine oil filter Model AFC-600 · Airwolf Filter, Corp - [STC SR02394AK](https://openairdocs.org/stc/SR02394AK.md): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system · Seaplanes North LLC - [STC SA00068SE](https://openairdocs.org/stc/SA00068SE.md): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1) · Electronics International Inc. - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM.md): Installation of Electronics International digital volt/amp gauges and accessories. · Electronics International Inc. - [STC SA02033AT](https://openairdocs.org/stc/SA02033AT.md): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. · M-20 Oil Separators LLC - [STC SH178WE](https://openairdocs.org/stc/SH178WE.md): Installation of Allison 250-C20/250-C20B engine and related changes. (UH-12E-L (4 place)) · Siam Hiller Holdings Inc - [STC SA02520AT](https://openairdocs.org/stc/SA02520AT.md): Installation of M-20 Oil Separator, model 600-WP. · M-20 Oil Separators LLC - [STC SH201WE](https://openairdocs.org/stc/SH201WE.md): Installation of stirrup assemblies to directional control pedals for operation by handicapped pilot. (US ARMY OH-13E 205A) · Dallwig Barry C - [STC SA2687NM](https://openairdocs.org/stc/SA2687NM.md): Installation of Truboplus/ Electronics Int'l gauges and switches. · Aero Manufacturing Inc. - [STC SR00135LA](https://openairdocs.org/stc/SR00135LA.md): Installation of Yehnert Tail Rotor Blades YH-278 as replacements for Hiller Tail Rotor Blades 55073. · Yehnert Helicopters, Inc - [STC SA1626NM PAGE 1](https://openairdocs.org/stc/SA1626NM%20PAGE%201.md): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series) · Electronics International - [STC SH5729NM](https://openairdocs.org/stc/SH5729NM.md): Full flow oil filter system · Grogan Don - [STC SA2350NM PAGE 1](https://openairdocs.org/stc/SA2350NM%20PAGE%201.md): Installation of Electronics International Inc digital carburetor/outside air temperature gauges · Electronics International - [STC SA4302NM](https://openairdocs.org/stc/SA4302NM.md): Installation of Electronics Int'l digital automatic engine analyzer. · Electronics International - [STC SA3862NM PAGE 1](https://openairdocs.org/stc/SA3862NM%20PAGE%201.md): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories. · Electronics International - [STC SH4173NM](https://openairdocs.org/stc/SH4173NM.md): Installation of Simplex Model 7600 modular electrical system. (US ARMY OH-13E M74A) · Simplex Manufacturing Company - [STC SH3362NM](https://openairdocs.org/stc/SH3362NM.md): Installation of a Tail Rotor Blade Protective Coating · Columbia Helicopters Inc - [STC SA2190NM PAGE 1](https://openairdocs.org/stc/SA2190NM%20PAGE%201.md): Installation of electronics International Digital Volt/Amp Gauges and Accessories. · Electronics International - [STC SH887NW](https://openairdocs.org/stc/SH887NW.md): Simplex Model 4650 spray system - agricultural. · Simplex Manufacturing Co - [STC SH155WE](https://openairdocs.org/stc/SH155WE.md): Installation of battery temperature monitor system. · K S Avionics, Inc - [STC SH215NW](https://openairdocs.org/stc/SH215NW.md): Installation of Model 4400 aerial dust system. · Simplex Manufacturing Co - [STC SH165NW](https://openairdocs.org/stc/SH165NW.md): Installation of Model 1620 and 1621 aerial seeders systems. · Simplex Manufacturing Co - [STC SA584WE](https://openairdocs.org/stc/SA584WE.md): Installation of oil filter assemblies. · Nelson Filter - [STC SH446EA](https://openairdocs.org/stc/SH446EA.md): Installation of Franklin engine Model 6V-350B in Fairchild Hiller UH-12A helicopter. · Franklin Engine Co Inc - [STC SH1-457](https://openairdocs.org/stc/SH1-457.md): Aircooler Motors 6VS-335B turbo-supercharged engine (derated). · Carson Helicopters Inc - [STC SH160AL](https://openairdocs.org/stc/SH160AL.md): Airborne control survey system. · US Dept of Interior - [STC SH32WE](https://openairdocs.org/stc/SH32WE.md): Fabricate and install jump-step. · USDA Forest Service - [STC SH4-1101](https://openairdocs.org/stc/SH4-1101.md): Aerofilter 30690B with element1A0286. · Winslow Aerofilter Corp - [STC SH4-178](https://openairdocs.org/stc/SH4-178.md): Curved control stick. · Nystrom Aviation Inc - [STC SH52WE](https://openairdocs.org/stc/SH52WE.md): High volume fifty foot spray boom kit. · Simplex Manufacturing Co - [STC SH77AL](https://openairdocs.org/stc/SH77AL.md): Tundra snow shoes. · ERA Helicopters Inc - [STC SH9AL](https://openairdocs.org/stc/SH9AL.md): Airglas tundra pads L-100. · Intl Helicopters - [STC SA2350NM](https://openairdocs.org/stc/SA2350NM.md): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. · Electronics International - [STC SE5511NM](https://openairdocs.org/stc/SE5511NM.md): Installation of compressor discharge pressue (PC) valve. · Bell Helicopter Textron Inc. - [STC SE769NW](https://openairdocs.org/stc/SE769NW.md): Installation of Soloy Part No. 250-1001-1 fuel line. · Siam Hiller Holdings Inc - [STC SE00027EN](https://openairdocs.org/stc/SE00027EN.md): Installation of Pratt & Whitney Engine Services Inc. Intellistart plus electronic control unit (ECU), P/N DPU-K-010 on the specified 250 engine models. · Pratt & Whitney Engine Services Inc. - [STC SE492GL](https://openairdocs.org/stc/SE492GL.md): Incorporation of a fuel flow transducer. · Shadin Avionics - [STC ST00037AT](https://openairdocs.org/stc/ST00037AT.md): Unison igniter plugs, P/N 9044400-1. · Unison Industries - [STC SQ00338AT](https://openairdocs.org/stc/SQ00338AT.md): Unison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106. · Unison Industries ## 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 = '4360124' UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '54178') 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/N9151T/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.