# STCs that may be installed: N95GP A list on [N95GP](https://openairdocs.org/aircraft/N95GP.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 2 · 57 STCs - [STC SE12225AC](https://openairdocs.org/stc/SE12225AC.md): This STC will incorporate P&W 1700 rpm propeller reduction gearbox on P&WC engines to allow 1700 rpm propeller installation · High Cotton Aircraft Conversions, LLC · Lists PT6A-41 - [STC SE00010EN](https://openairdocs.org/stc/SE00010EN.md): Instructions for Continued Airworthiness for the PT6A-25, and, -25A engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. · MORE Company Inc · Lists PT6A-25 - [STC SE000010EN](https://openairdocs.org/stc/SE000010EN.md): Instructions for Continued Airworthiness for the PT6A-25 and PT6A-25A engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. · MORE Company, Inc. · Lists PT6A-25 - [STC SE000011EN](https://openairdocs.org/stc/SE000011EN.md): Instructions for Continued Airworthiness for the PT6A-25C engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. · MORE Company, Inc. · Lists PT6A-25C - [STC SE00001EN](https://openairdocs.org/stc/SE00001EN.md): Engines will be maintained IAW 'Maintenance or Reliable Engines(MORE) Program,' Rev 2, 8/16/95. · MORE Company Inc · Lists PT6A-38 - [STC SE00002EN](https://openairdocs.org/stc/SE00002EN.md): Instructions for Continued Airworthiness for the PT6A-34, -34AG, -34B, -36, -114, -114A, -116, -135, and -135A engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. · MORE Company Inc · Lists PT6A-114 - [STC SE00003EN](https://openairdocs.org/stc/SE00003EN.md): Instructions for Continued Airworthiness for the PT6A-6/C20, -20, -20A and, -20B engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. · MORE Company Inc · Lists PT6A-20 - [STC SE00004EN](https://openairdocs.org/stc/SE00004EN.md): Instructions for Continued Airworthiness for the PT6A-11, -11AG, -15AG, -110 and-112 engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. · MORE Company Inc · Lists PT6A-11 - [STC SE00006EN](https://openairdocs.org/stc/SE00006EN.md): Instructions for Continued Airworthiness for the PT6A-45A, -45B, and, -45R engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. · MORE Company Inc · Lists PT6A-45A - [STC SE00011EN](https://openairdocs.org/stc/SE00011EN.md): Instructions for Continued Airworthiness for the PT6A-25C engine model that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. · MORE Company Inc · Lists PT6A-25C - [STC SE000EN](https://openairdocs.org/stc/SE000EN.md): Engines will be maintained IAW 'Maintenance or Reliable Engines(MORE) Program,' Rev 4, dated 8/16/95. · MORE Company Inc · Lists PT6A-21 - [STC SE10947SC](https://openairdocs.org/stc/SE10947SC.md): The conversion of the Pratt & Whitney Canada, Model PT6A-21 to a PT6A-28 turboprop engine · Prime Turbines · Lists PT6A-21 - [STC SE00482SE](https://openairdocs.org/stc/SE00482SE.md): Incorporation of turbine engine into a twin power section turboprop assembly. · Fifty-Ten-Yankee LLC · Lists PT6A-114A - [STC SE10552SC](https://openairdocs.org/stc/SE10552SC.md): Conversion of Pratt & Whitney Canada Corp. Model PT6A-27 or -28 to a Model PT6A-34 turboprop engine. · Prime Turbines LLC · Lists PT6A-27 - [STC SE11139SC](https://openairdocs.org/stc/SE11139SC.md): The conversion of the Pratt & Whitney Canada, Model PT6A-135 to a PT6A-135A turboprop engine · Airforce Turbine Service · Lists PT6A-135 - [STC SE11141SC](https://openairdocs.org/stc/SE11141SC.md): The conversion of the Pratt & Whitney Canada, Model PT6A-15AG to a PT6A-34AG turboprop engine · RT Turbines Inc · Lists PT6A-15AG - [STC SE02170AT](https://openairdocs.org/stc/SE02170AT.md): Installation of Pc Safety Valve Kit · Bell Helicopter Textron Inc. · Lists PT6A-27 - [STC SE11095SC](https://openairdocs.org/stc/SE11095SC.md): The conversion of the Pratt & Whitney Canada, Model PT6A-27 to a PT6A-34 turboprop engine · R.T. Turbines, Inc. · Lists PT6A-27 - [STC SE01624WI](https://openairdocs.org/stc/SE01624WI.md): Conversion of Pratt & Whitney Canada, Model PT6A-60A to a North Star Aviation PT6A-60AG turboprop engine. Data required: 1. A copy of this certificate 2. North Star Aviation document, NSA No. 1200, Turboprop Engine Conversion of PT6A-60A Model to PT6A-60AG Configuration per FAA Approved STC, dated March 15, 2011, or later FAA approved revision 3. The ICA supplement for North Star Aviation PT6A-60AG models, Instructions for Continued Airworthiness, NSA No. 1200-ICA, Rev NC, dated March 9, 2011 or later applicable revision. · North Star Aviation Inc. · Lists PT6A-60A - [STC SE02837NY](https://openairdocs.org/stc/SE02837NY.md): The conversion of the Pratt & Whitney Canada PT6A-21 engine to operate as a PT6A-28 engine to be done. · Rocky Mountain Aircraft · Lists PT6A-21 - [STC SE02688NY](https://openairdocs.org/stc/SE02688NY.md): This modification would incorporate improved compressor components into the Pratt & Whitney PT6A-28 engine from the PT6A-135A engine. · Standard Aero Limited · Lists PT6A-28 - [STC SE02290NY](https://openairdocs.org/stc/SE02290NY.md): Conversion of a Pratt & Whitney Canada PT6A-21 engine to operate as a PT6A-27 or -28 engine · Vector Aerospace Engine Services Atlantic Inc. · Lists PT6A-21 - [STC SE02501NY](https://openairdocs.org/stc/SE02501NY.md): Conversion of the PT6A-11 engine · Vector Aerospace Engine Services Atlantic Inc. · Lists PT6A-11 - [STC SE00014EN](https://openairdocs.org/stc/SE00014EN.md): Installation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models. · Pratt & Whitney Engine Services Inc. · Lists PT6A-11 - [STC SE00020EN](https://openairdocs.org/stc/SE00020EN.md): Installation of the Pratt & Whitney Engine Services, Inc. TrendCheck/ TrendCheck Plus Engine Monitor Kit P/N TREND-K-010-1 · Pratt & Whitney Engine Services Inc. · Lists PT6A-11 - [STC SE8652SW](https://openairdocs.org/stc/SE8652SW.md): Installation of a flexible hose from the Propeller Primary Governor to the Fuel Control Unit. · Air Tractor Inc · Lists PT6A-45R - [STC SE02357NY](https://openairdocs.org/stc/SE02357NY.md): Installation of the Pratt & Whitney Canada, PT6A-135, dual fuel feed line configuration · Standard Aero Inc · Lists PT6A-135A - [STC SE2960SO](https://openairdocs.org/stc/SE2960SO.md): Installation of an oil filler cap safety adapter. · Jet Avion Corporation · Lists PT6A-11 - [STC SE02273NY](https://openairdocs.org/stc/SE02273NY.md): Conversion of a Pratt & Whitney Canada PT6A-27 or PT6A-28 engine to operate as a PT6A-34 engine. · Atlantic Turbines International Inc. · Lists PT6A-27 - [STC SE615GL](https://openairdocs.org/stc/SE615GL.md): Incorporation of a fuel flow transducer. · Shadin Avionics · Lists PT6A-11 - [STC SE01805NY](https://openairdocs.org/stc/SE01805NY.md): Installation of Fuel Nozzle Adapters using studs and nuts. · Atlantic Turbines International Inc. · Lists PT6A-11 - [STC SE00022EN](https://openairdocs.org/stc/SE00022EN.md): Installation of Oil Tank Filler Neck Check Valve. · Helicopter Support Inc Services Div · Lists PT6A-66 - [STC SE09413SC](https://openairdocs.org/stc/SE09413SC.md): Install modified gas generator module. · Airforce Turbine Service · Lists PT6A-41 - [STC SE00856NY](https://openairdocs.org/stc/SE00856NY.md): Conversion of PT6A-41 engine model to PT6A-42 engine model. · Standard Aero Limited · Lists PT6A-41 - [STC SE00691NY](https://openairdocs.org/stc/SE00691NY.md): Conversion of engine models PT6A-27 and -28 to Model PT6A-34 as described in Temporary Overhaul Data Revision. · Standard Aero Limited · Lists PT6A-27 - [STC SE09286SC](https://openairdocs.org/stc/SE09286SC.md): Installation of an alternate gas generator case. · Airforce Turbine Service · Lists PT6A-114 - [STC SE09257SC](https://openairdocs.org/stc/SE09257SC.md): Convert P&W Engine Models PT6A-15AG, -27, and -28, into PT6A-34 configuration. · Covington Aircraft Engines, Inc. · Lists PT6A-11 - [STC SE659NE](https://openairdocs.org/stc/SE659NE.md): Installation of oil tank filler neck check valve, P/N TSA-76A. · Aviation Components Support · Lists PT6A-11 - [STC SE09144SC](https://openairdocs.org/stc/SE09144SC.md): Installation of an alternate gas generator case. · Airforce Turbine Service · Lists PT6A-41 - [STC SE8827SW](https://openairdocs.org/stc/SE8827SW.md): Modification to exhaust duct P/N 3109946-01. · Air Tractor, Inc · Lists PT6A-67 - [STC SE1122EA](https://openairdocs.org/stc/SE1122EA.md): Repair of combustion chamber small exit duct, P/N 3012060. · Airwork Corporation · Lists PT6A-11 - [STC SE8319SW](https://openairdocs.org/stc/SE8319SW.md): Conversion of P&W Canada PT6A-15AG to PT6A-27 model configuration. · Airforce Turbine Service · Lists PT6A-15AG - [STC SE7677SW](https://openairdocs.org/stc/SE7677SW.md): Modifiy the P&W Canada PT-6A-27, -28, -15AG to the PT6A-34 configuration. · Airforce Turbine Service · Lists PT6A-15AG - [STC SE1251GL](https://openairdocs.org/stc/SE1251GL.md): Conversion of engine Model PT6A-27 to Model PT6A-34. · Turbines, Inc · Lists PT6A-27 - [STC SE539NE](https://openairdocs.org/stc/SE539NE.md): Modification of compressor turbine sealing segments to incorporate honeycomb material on the inside diameter thereby providing an abradable surface for turbine blade contact. · Airwork Corporation · Lists PT6A-34 - [STC SE1269EA](https://openairdocs.org/stc/SE1269EA.md): Stripping and recoating of compressor turbine blades, P/N 3023401, with Walbar Metals, Inc. · Airwork Corporation · Lists PT6A-11 - [STC SE386NE](https://openairdocs.org/stc/SE386NE.md): Installation of Turbo Products PMA parts. · Audco Corporation · Lists PT6A-11 - [STC SE355NE](https://openairdocs.org/stc/SE355NE.md): Conversion of engine model PT6A-27 to model PT6A-34. · Van Dusen Turbine Products · Lists PT6A-27 - [STC SE241NE](https://openairdocs.org/stc/SE241NE.md): Conversion of engine Models PT6A-27 and -28 to 01/157/3. · Airwork Corporation · Lists PT6A-27 - [STC SE260NE](https://openairdocs.org/stc/SE260NE.md): Conversion of engine PT6A-34 to PT6A-36. · Comerford-Audet Corporation · Lists PT6A-34 Next page: https://openairdocs.org/aircraft/N95GP/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 = '0970106' UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52032') 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/N95GP/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.