SA2514CEEngine and powerplant
Installation of wing nacelle locker tanks and fuel transfer system.
FAA holder: Griggs Aircraft Refinishing LLC
FAA STC category
Engine and powerplant STCs
Engine, turbine, exhaust, nacelle, inlet, and related powerplant changes. This directory contains 1,512 selected records listed with status Current in the June 30, 2026 FAA DRS snapshot and links every entry to its source.
Showing 481–600 of 1,512Page 5 of 13
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SA01837SEEngine and powerplant
Installation of Teledyne Continental O-300-B engine with approved propeller and accessories per A-799 Type Certificate Data Sheet .
FAA holder: International Cessna 170 Association
SA03804NYEngine and powerplant
Engine Refit: The presently installed versions of the TAE 125-01 or TAE 125-02-99 engine are replaced by the TAE 125-02-114 engine. This STC includes two propeller configurations: 1) MTV-6-A-C-F / CF187-129 without noise suppressor or 2) MTV-6-A-C-F / CF190-69 with noise suppressor;.
FAA holder: Crosby Aviation (Jersey) Ltd.
SE10076SCEngine and powerplant
Modify engine by installation of C12ST2/S starter.
FAA holder: Hartzell Engine Technologies, LLC
SA10470SCEngine and powerplant
Installation of an engine driven vapor cycle air conditioning system.
FAA holder: Textron Aviation Inc
SR03664NYEngine and powerplant
Installation of the Engine Inlet Barrier Filter System (IBFS).
FAA holder: Coulson Aircrane Ltd.
SA876CEEngine and powerplant
Remove Continental 0-470-13 or 0-470-13A engine and propeller. Install Continental I0-470-N engine and Hartzell BHC-L2YF-4F/FC8468AR propeller.
FAA holder: Textron Aviation Inc
ST00459NYEngine and powerplant
Installation of an Allied Signal (Garrett) GTCP 36-150W gas turbine Auxiliary Power Unit (APU).
FAA holder: Textron Aviation Inc
SA00352LAEngine and powerplant
Installation of Aero Sound Shield Acoustical Firewall Blanket, Part No. AS-0500.
FAA holder: Luminary Air Group LLC
SA1109WEEngine and powerplant
Installation of Pratt & Whitney R-985 AN1 Engine (S/N 20458).
FAA holder: Continental Motors, Inc.
SE03215CHEngine and powerplant
STC for the conversion of Lycoming O-320-A, B, C, D, E; IO-320-A, B, C, D, E, F; AIO-320-A, B; AEIO-320-D, E to increase engine displacement to 340 cubic inches by installation of a crankshaft with a longer stroke.
FAA holder: Continental Motors, Inc.
SE10129SCEngine and powerplant
Installation of rotocoil, valve springs, ni-resist valve guide, exhaust valve with chrome flash on stem, and rocker shaft with thrust buttons.
FAA holder: Continental Motors, Inc.
SE1051SWEngine and powerplant
Convert straight mount engine to dynafocal mount configuration.
FAA holder: Continental Motors, Inc.
SE31WEEngine and powerplant
Installation of Electro-Coatings, Inc. piston rings P/N 251822, 251824, and 251825 on Pratt and Whitney R-985 piston P/N 27056 for use with Channelcromium plated R-985 engine cylinders.
FAA holder: Continental Motors, Inc.
SE4408SWEngine and powerplant
Miscellaneous engine cylinder replacement parts.
FAA holder: Continental Motors, Inc.
SE5820SWEngine and powerplant
Installation of Airmotive exhaust valve, P/N AEC-637781.
FAA holder: Continental Motors, Inc.
SA02918CHEngine and powerplant
Replace original Teledyne Continental Motors (TCM) TSIO-520 engine with TCM IO-550-P model aircraft engine; turbo normalized not to exceed the rating of 310 BHP Maximum Continuous Power for both the aircraft and engine.
FAA holder: Vitatoe Aviation
SA1438NMEngine and powerplant
JT15D-1A to -1A certified engine limits.
FAA holder: Jennings W P & Assoc
SE04117CHEngine and powerplant
Conversion of Continental Motors engine models TSIO-520-C, -G, -H, -M & -R to the naturally aspirated IO-520-A, -F, -J & -L.
FAA holder: Western Skyways
ST03120CHEngine and powerplant
Installation of Fuel Flow and Engine Torque DC Transducers.
FAA holder: Elliott Aviation Technical Products Development, Inc.
SE10552SCEngine and powerplant
Conversion of Pratt & Whitney Canada Corp. Model PT6A-27 or -28 to a Model PT6A-34 turboprop engine.
FAA holder: Prime Turbines LLC
SR02059SEEngine and powerplant
Installation of an engine inlet barrier filter (IBF) system.
FAA holder: Aerometals
SA03775NYEngine and powerplant
The installation of MT-Propeller Entwicklung GmbH's Model# MTV-14-D/195-30b 4-Blade constant speed propeller and spinner on Piper Aircraft, Inc. Model PA-46-310P aircraft equipped with TCM TSIO-550-C engine.
FAA holder: MT- Propeller Entwicklung GmbH
ST02583LAEngine and powerplant
Modification of the Engine Exhaust system that installs the Alloy Aerospace, Inc. hush kit on Learjet 20 series aircraft.
FAA holder: Alloy Aerospace Inc
SA02467AKEngine and powerplant
Installation of a Continental IO-470-F engine.
FAA holder: Floats Alaska LLC
SH5122NMEngine and powerplant
Installation of Howell H2900K-436 Exhaust Gas Temperature Indicator.
FAA holder: Hillsboro Aviation Inc
SH5797NMEngine and powerplant
Installation, maintenance, and operation of an engine wash kit.
FAA holder: Hillsboro Aviation Inc
SH5977NMEngine and powerplant
This supplemental type certificate (STC) applies to the model 205A-1 with either the T5317A or T5317B engine modified by STCs SH2394NM and SH5132NM, and the 210 helicopters (no modifications required) when operated with nine (9) or less passengers.
FAA holder: Hillsboro Aviation Inc
SR03706NYEngine and powerplant
Installation of the Inlet Barrier Filter.
FAA holder: Eagle Copters Ltd
SA02472AKEngine and powerplant
Installation of a Continental IO-520-F engine.
FAA holder: Warren E. Johnson
SA10145SCEngine and powerplant
Installation of Teledyne Continental Motors Model IO-550-R engine.
FAA holder: TruAtlantic Mfg., LLC
SA00728SEEngine and powerplant
Installation of various models of the Continental IO360 Engine.
FAA holder: Mr. Thomas Anderson
SR03693NYEngine and powerplant
Installation of the provisions for an Engine Air Intake Cover.
FAA holder: Airbus Helicopters Canada Limited
SA1774WEEngine and powerplant
Installation of a Lycoming Model O-320-E2D engine and McCauley Model 1C172/MTM 7653 propeller.
FAA holder: Arthur King
SA02333AKEngine and powerplant
Fabrication and installation of F. Atlee Dodge p/n 8008 Firewall Battery Box.
FAA holder: F. Atlee Dodge Aircraft Services, LLC
SA02696CHEngine and powerplant
Replaces Southwind combustion heater 84720D for Cessna 340, 340A, S/N 340A-0001 thru 340A-0200 w/SA03118NY turbine conversion and C&D Associates combustion heater Kit 32 P/N CD14076K32 or replaces Janitrol combustion heaters 02E17-2, 13E55-2(EL) for Cessna 340A, S/N 340A-201 and up w/SA03118NY turbine conversion and C&D combustion heater Kit 32 P/N CD14028K32.
FAA holder: Hartzell Engine Technologies, LLC
SA2461SOEngine and powerplant
Installation of TCM Model O-300-D engine.
FAA holder: Tim or Janet Tucker
SA04239ATEngine and powerplant
Installation of Lycoming Engine model O-540-B4B5, serial number L-7638-40C (fuel injected), and optional Hartzell HC-C2YR-1BFP/F8068 constant speed propeller.
FAA holder: Nicky L. Watts
SA00035DEEngine and powerplant
Installation of modified engine baffle/cooling louver system.
FAA holder: General Aviation Modifications, Inc.
SA09850ACEngine and powerplant
Installation of a McCauley Propeller Systems model 4HFR34C778 hub and 102BHA-0 blade for a Textron Aviation, Inc. Model 208B aircraft with a P&WC PT6A-140 turboprop engine.
FAA holder: McCauley Propeller Systems
SE09979SCEngine and powerplant
Modification of Teledyne Continental Motors IO-520-B, IO-520-BA, or IO-520-BB engine to an Ultimate Engines IO-550-B/UE engine.
FAA holder: General Aviation Modifications, Inc.
SA1384SOEngine and powerplant
Installation of engine PS3 blow down system.
FAA holder: American Airlines Inc
SA8097NM-DEngine and powerplant
Installation of an Engine Cover Storage Aft Equipment Bay.
FAA holder: Learjet Inc.
SH4909NMEngine and powerplant
Replace the aft engine compartment heat blanket with a stainless steel firewall.
FAA holder: Cascade STC LLC
SA03637NYEngine and powerplant
Installation of MT-Propeller Entwicklung GmbH's 4-Blade Model# MTV-14-B / 195-30b propellers and spinners containing Lycoming TIO-540-AE2A model engines or turbo-supercharged variance of Lycoming's TIO-540-AEA model engine.
FAA holder: MT- Propeller Entwicklung GmbH
SA02282AKEngine and powerplant
Installation of Lycoming Engine Models IO-360-A1A, -A1B, -A1B6, -M1A, or -M1B; Hartzell propeller models HC-C2YR-1BF/F7666A()/F8477(), HC-C2YR-1N/NG8301(), or MT-Propeller Model MTV-15-() and associated modified powerplant components.
FAA holder: Stoots Aviation David S. Stoots
SR09505RCEngine and powerplant
Installation of replacement stainless steel hinges for engine and/or transmission cowling of EC 130 B4 and EC130 T2 aircraft.
FAA holder: Airbus Helicopters, Inc.
ST04233ATEngine and powerplant
Replacement of the inner aluminum barrel of the engine inlet cowl, with an inlet barrel of carbon graphite sandwich construction, to provide a solution for in-service corrosion.
FAA holder: Quiet Technology Aerospace
SA02546LAEngine and powerplant
Replacement of the original Pratt and Whitney PT6A-114(A) engine and propeller with a Pratt and Whitney PT6A-140 and 3-blade Hartzell Propeller HC-B3TN-3AF(Y)/T10890CN(K)-2, also Ametek MG94K-2 325 AMP Starter Generator, Howell Instruments powerplant indicating system, and associated equipment.
FAA holder: Blackhawk Modifications Inc.
SA02343AKEngine and powerplant
Installation of Lycoming Engine Model IO-390-A3A6 with Hartzell model HC-C2YR-1BFP/F8477-2,-4; HC-C2YR-1N/NG8301(); or MT propeller model MTV-15-B/210-58.
FAA holder: David A. Stoots dba Stoots Aviation LLC
SA4374NMEngine and powerplant
Installation of a pitot-type engine air intake.
FAA holder: Aero Innovations LLC
SA02450SEEngine and powerplant
Installation of the Lycoming IO-540-M1C5 engine and Hartzell HC-C3YR-2UF/FC8468()-6R propeller.
FAA holder: Merlyn Products Inc.
SA1199WEEngine and powerplant
Installation of Continental 0-4 70-A, -J, -K, -L, or -R engine and McCauley 2A34C/90A or 2A36C/90M propellers; or 0-470-A, -J, -K, -L, and Hartzell HC-A2XF-1/8433 or BHCA2XF-1/8433 propellers; or 0-470-R engine and Hartzell BHC-C2Y/8468.
FAA holder: Tundrahawk LLC
SA1744SOEngine and powerplant
Installation of two nacelle locker(left side and right side) metal fuel tanks (22.6 gallons each).
FAA holder: Aircraft Restoration Corporation
SA03437CHEngine and powerplant
Modification of existing exhaust system by the addition of and exhaust pipe extension.
FAA holder: Aviation Resources LLC
SA03303ATEngine and powerplant
Installation of Thielert Aircraft Engines (TAE) Aircraft Diesel Engine model TAE 125-01 and MT-Propeller model MTV-6-A-187/129 propeller and other minor modifications.
FAA holder: Technify Motors GmbH
SA6012NMEngine and powerplant
Installation of a Champion or Unison engine ignition system.
FAA holder: United Aeronautical Corporation
ST00788LAEngine and powerplant
Installation of a Champion or Unison engine ignition system.
FAA holder: United Aeronautical Corporation
SA03327CHEngine and powerplant
Installation of engine mount, engine cowling and carburetor air box.
FAA holder: Rubbert Aircraft Services
SA02604CHEngine and powerplant
Installation of a battery powered engine starting system.
FAA holder: SafeStart Starter System
SA893WEEngine and powerplant
Installation of Continental IO-470-N engine and Flottorp F12A-3/8400-2 propeller.
FAA holder: D'Shannon Products Ltd.
SA02357LAEngine and powerplant
Replacement of the original Pratt and Whitney PT6A-114(A) engine and propeller with a Pratt and Whitney PT6A-42A and 4-blade Hartzell Propeller HC-E4N-3P/D9900(K) propeller or 3-blade Hartzell Propeller HC-B3TN-3AE(Y)/T10290N(K)+2, and associated equipment.
FAA holder: Blackhawk Modifications Inc.
SR03496NYEngine and powerplant
Installation of Honeywell HTS900-2-1D Engine.
FAA holder: Eagle Copters Ltd
SR01136NY-DEngine and powerplant
Installation of an engine oil cowling access door modification.
FAA holder: Sikorsky Aircraft Corporation
SA01088SEEngine and powerplant
Installation of Dynamic Propellers induction air inlet on carburetor air box.
FAA holder: Dynamic Propeller
SA03134NYEngine and powerplant
Installation of Low Noise Silencer Kit T( )206-606580, Exhaust Silencer with Extension,.
FAA holder: Gomolzig Flugzeug-und Maschinenbau GmbH
SH2709NMEngine and powerplant
Installation of an engine driven accessory hydraulic pump and associated hardware.
FAA holder: Air Comm Corporation
SR00220DEEngine and powerplant
Installation of engine compartment bleed air system.
FAA holder: Air Comm Corporation
SA03034CHEngine and powerplant
Installation of new engine baffling assembly and new oil coolers.
FAA holder: Rubbert Aircraft Services
SA03118NYEngine and powerplant
Installation of Rolls-Royce 250 B17F/2 turbine engines, Hartzell HCB3TF7A/T9212DNK7 propellers, and associated structures and equipment.
FAA holder: TURBINE 340 LLC
SA02414SEEngine and powerplant
Installation of a Pratt & Whitney PT6A-41, PT6A-42 or PT6A-42A engine and Avia V508H/106B/A propeller.
FAA holder: Cascade Aircraft conversions LLC
SR03465NYEngine and powerplant
Installation of Replacement Engine Mount Kits.
FAA holder: Dart Aerospace Limited
SH3541SWEngine and powerplant
Installation of a wet engine and transmission oil pressure indicating system.
FAA holder: Apical Industries, Inc. dba Dart Aerospace
SH7688SWEngine and powerplant
Installation of ERA replacement inlet duct.
FAA holder: Apical Industries, Inc. dba Dart Aerospace
SH7689SWEngine and powerplant
Installation of ERA replacement inlet duct.
FAA holder: Apical Industries, Inc. dba Dart Aerospace
SH8445SWEngine and powerplant
Replacement of linear actuator for Bendix fuel control system on the Allison 250 C20B engine.
FAA holder: Apical Industries, Inc. dba Dart Aerospace
SR00877SEEngine and powerplant
Installation of an engine inlet air filtration system.
FAA holder: Aerometals
SH5653NMEngine and powerplant
Re-mounting of the turbine engines and reinforcement of the associated fuselage support structure with Erickson detuned engine mounting system (DEMS).
FAA holder: Erickson Incorporaated/dba Erickson Air-Crane
SE144GLEngine and powerplant
Modify engine to increase compression ratio to 8.7:1.
FAA holder: Scott's Bell 47 Inc
SH151GLEngine and powerplant
Installation of Lycoming VO-435 A1F engine modified.
FAA holder: Scott's Bell 47 Inc
SH161WEEngine and powerplant
Installation of exhaust muffler assembly.
FAA holder: Scott's Bell 47 Inc
SH162WEEngine and powerplant
Installation of exhaust muffler assembly.
FAA holder: Scott's Bell 47 Inc
SH213WEEngine and powerplant
Installation of exhaust muffler assembly.
FAA holder: Scott's Bell 47 Inc
SH2397SWEngine and powerplant
Installation of Ag-King 500B Spray System with 2 tanks (800 pounds total allowable), 32 foot boom on end of skid tubes and engine driven pump.
FAA holder: Scott's Bell 47 Inc
SH307SWEngine and powerplant
Installation of Lycoming VO-540-B1B3 engine.
FAA holder: Scott's Bell 47 Inc
SH504GLEngine and powerplant
Installation of Lycoming VO-435-A1F engine modified.
FAA holder: Scott's Bell 47 Inc
SH529SWEngine and powerplant
Installation of Franklin 6V-350-A engine.
FAA holder: Scott's Bell 47 Inc
SH605GLEngine and powerplant
Removal of Avco Lycoming TV0-435-B1B Engine, Turbocharger, and related parts; and the installation.
FAA holder: Scott's Bell 47 Inc
SH752SWEngine and powerplant
Centerframe modification or replacement and installation of Lycoming VO-435 engine in lieu of Franklin installation and optional lateral control system.
FAA holder: Scott's Bell 47 Inc
SR09454RCEngine and powerplant
Installation approval of a new engine mount assembly and lateral cyclic control support assembly.
FAA holder: Scott's Bell 47 Inc
SA00773DEEngine and powerplant
Installation of Engine Cowl Access Panel.
FAA holder: Lee Products Engineering Services, Inc.
SA02898CHEngine and powerplant
Installation of new engine baffling and rear mounted engine oil cooler.
FAA holder: Rubbert Aircraft Services
SA02929CHEngine and powerplant
Installation of Lycoming O-360 engine.
FAA holder: Rubbert Aircraft Services
SA1559GLEngine and powerplant
Installation of dual 20 Joule engine ignition system when powered by P&W JT3D-3B engines.
FAA holder: ABX Air Incorporated
SA09247ACEngine and powerplant
Replace the engine exhaust ejector assembly, P/N 260042-55 LH & P/N 260042-56 RH, with a heavier gauge ejector which has a modified fairing.
FAA holder: Twin Commander Aircraft LLC
SA710SWEngine and powerplant
Installation of United Aircraft of Canada Limited PT6A-20 engine.
FAA holder: Twin Commander Aircraft LLC
SE11139SCEngine and powerplant
The conversion of the Pratt & Whitney Canada, Model PT6A-135 to a PT6A-135A turboprop engine.
FAA holder: Airforce Turbine Service
SA02405SEEngine and powerplant
Installation of a Honeywell Engine Model TPE331-14GR-801Z, and Hartzell Propeller Model HC-B5MA-5H/M11693NS.
FAA holder: Flight Doctor West LLC
SA8056SWEngine and powerplant
Install engine throttle, mixture, and carburetor heat cable controls.
FAA holder: Rare Aircraft Ltd
SA02283SE PAGE 1Engine and powerplant
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P.
FAA holder: Electronics International Inc.
SA02283SE PAGE 2Engine and powerplant
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P.
FAA holder: Electronics International Inc.
SA03446NYEngine and powerplant
The installation of MT-Propeller Entwicklung GmbH's 5-Blade (Model# MTV-27-1-E-C-F-R(P) / CFR203-58d) propellers and spinners on Piper PA-46-500TP aircraft containing Pratt & Whitney PT6A-42A engine.
FAA holder: MT- Propeller Entwicklung GmbH
SA02402SE PAGE 1Engine and powerplant
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C.
FAA holder: Electronics International Inc.
SA02402SE PAGE 2Engine and powerplant
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C.
FAA holder: Electronics International Inc.
SA2107AT-DEngine and powerplant
Installation of a Teledyne Continental Motors IO-550-P engine and Hartzell PHC-J3YF-1RF/F7691() propeller.
FAA holder: TruAtlantic Mfg., LLC
SA5202NMEngine and powerplant
Installation of Avco-Lycoming engine model IO-360-C1D6 modified.
FAA holder: Fly In Vacations
SE5203NMEngine and powerplant
Installation of turbocharger and induction air intercooler.
FAA holder: Fly In Vacations
SA3786WEEngine and powerplant
Installation of a tubular engine mount, cowling cooling baffles, air induction system, and cowl flap mechanism.
FAA holder: Navion Customs, LLC
SA4154WEEngine and powerplant
Installation of tubular engine mount, cowling, cooling baffles, air induction system and cowl flap mechanism.
FAA holder: Navion Customs, LLC
ST00154LAEngine and powerplant
Installation of CF6-80C2B6F and CF6-80C2B7F Engine Shipping Stand.
FAA holder: Advanced Ground Systems Engineering Corporation