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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 721–840 of 1,512Page 7 of 13
SA3-13Engine and powerplant

Install 170 hp Lycoming O-340-A1A engine and Hartzell HC-82XL-1DB/8433-12 propeller according to Doyn data listed on Engineering Releases 100 (3/22/58), 1010 (3/16/57), 1011 (8/28/57), 1012 (7/15/57), 1014 (3/30/57), 1050 (7/13/57), 1051 (& DCN 1, 12/10/57), 1052 (7/19/57), 1053 (7/19/57), 1099 (3/22/58), and Instructions (2 sheets, undated) Data required for parts manufacture: As listed on Engineering Releases 1001 (1/18/57), 1002 (12/21/57), 1003 (5/1/57), 1004 (7/13/57), 1005 (7/12/57), 1006 (3/30/57), 1007 (4/12/57), 1008 (2/27/57), 1009 (10/23/57), 1015 (2/25/56).

FAA holder: D'Shannon Products Ltd.

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SA3-672Engine and powerplant

Installation of Lycoming O-360-A1A, A1D, or B1B engine with McCauley 2D36C14-X/78KM-4 propeller or Lycoming O-360-A1A and A1D engines with Hartzell HC-C2YK-1A/7666A-2 propeller. Data required: Doyn Aircraft, Inc. Drawings: 1000, 1005 Rev. C, 1006 Rev. C, 1009, 1010 Rev. A, 1011, 1012 Rev. A, 1013, 1014, 1015, 1016, 1099, 1100 Rev. B, 1101 Rev. A, 1102, 1103 Rev. A, 1104, 1107, 1150. Drawing Changes Notices: 1005-5A, 1006-8A, 1006-6, 1009-2A, 1199-1A, 1199-2A, and 1199-3A.

FAA holder: D'Shannon Products Ltd.

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SA686CEEngine and powerplant

Installation of Continental IO-520-B engine derated to power shown in the appropriate Airplane Flight Manual Supplement and Hartzell HC-C3YF-1/8468A-8R (Low 10.0 .2, High 36.0 1.0 Blade Angle Stop at 30 inch Sta.) propeller or McCauley 2A36C23/84B-2 (Low 13.3 , High 29.7 Blade Angle Stop from Ref. Sta. 30) propeller in accordance with AeroStol drawing 3100B, Sheet 1, Rev. B, dated 11/15/75 and 3100, Sheet 2, dated 9/18/75, or later FAA approved revisions, for all of the above Beech model aircraft, except Model G33. For Model 33 installation of the Continental IO-520-BB engine derated to the power shown in the appropriate Airplane Flight Manual Supplement and McCauley 2A36C23/84B-O (Low 13.3 , High 29.7 Blade Angle Stop, Ref. Sta. 30) propeller in accordance with D Shannon Products Drawing G3M2686BB, Rev. 1, dated 2/27/86 (5 sheets), or later FAA approved revisions. For Model H35 installation of the Continental IO-520-BB engine derated to the power shown in the appropriate Airplane Flight Manual Supplement and McCauley 3A32C406/82NDB-2 propeller in accordance with D Shannon Products Drawing H353A32C406BB Rev. 1, dated 11/25/86 (5 sheets), or later FAA approved revisions.

FAA holder: D'Shannon Products Ltd.

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SA01165CHEngine and powerplant

Install cooling air baffle on Raytheon (Beech) aircraft Model H35, J35, K35, M35, N35 and P35 or aircraft Model A35, B35, C35, D35, E35, F35, G35, H35, J35, K35, M35, 35-33, 35-A33, 35-B33, 35-C33, E33, and F33 which are modified by STC SA2660SW, SA5635SW, SA5527SW, SA238GL, SA893WE, or SA2361SW to use Teledyne Continental Motors engine Models IO-470-C, or IO-470-N, in accordance with Castlegar Trust L. L. C. Installation manual as listed on AML No. SA01165CH, or later FAA Approved revisions.

FAA holder: D'Shannon Products Ltd.

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ST00541SEEngine and powerplant

Installation of a Pratt & Whitney PT6A-34 engine rated at 560 HP, 2200 RPM, or as an option, a Pratt & Whitney PT6A-35 engine rated at 560 HP, 2190 RPM, or as an option, a Pratt & Whitney PT6A-21 engine rated at 550 HP, 2200 RPM, and an eligible propeller from Table 1, Page 3 and associated hardware in accordance with Rocket Engineering Master Drawing List 560.00.000, Revision AP, dated September 14, 2007, or later approved revision.

FAA holder: Jetprop LLC

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SA01626WIEngine and powerplant

One Aircraft Only installation of a Teledyne Continental Motors IO-360-D engine with two-bladed McCauley constant speed propeller, powerplant installation and fuel system modifications. Data Required: 1. A copy of this certificate and, 2. Installation Drawing No. 210-172-001, Rev. D, dated April 25, 2011 and, 3. Supplemental Airplane Flight Manual No. SAFM-17248124, dated April 25, 2011 and, 4. Instructions for Continued Airworthiness No. 210-172-002, Rev (-), dated April 25, 2011 or later FAA approved revisions thereof.

FAA holder: Robert D. Burow

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SA02125SEEngine and powerplant

Installation of a Continental E-225-4 engine, a Hartzell HC-12V20-7D propeller with V8433N blades, and associated accessories and hardware with the existing updraft cooling system in Navion A, serial number (s/n) NAV-4-182 4 per Substantiating Data for E-225 Engine Installation In Navion A Model Aircraft , document number WD189-D11, Revision IR, dated December 10, 2010. Maintenance shall be per the Instructions for Continued Airworthiness (ICA) Document WD189-ICA, Revision (A), dated March 28, 2011, or later FAA-approved revision.

FAA holder: Lyle K. Hockenson

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SA1315WEEngine and powerplant

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.

FAA holder: Universal Corporation

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SE01624WIEngine and powerplant

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.

FAA holder: North Star Aviation Inc.

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SA8343SWEngine and powerplant

Install Textron Lycoming IO-540-K1A5, -K1B5, -K1C5, K1G5, K1J5 or -S1A5 engine and Hartzell HC-C2YR-1BF/F8475R or HC-C2YR-1BF/F8475T+2 propeller with Installation Instructions dated 10/1/94, Dwg List No. 4100 dated 10/1/94, Dwg. No. 89320, Rev. C, dated 4/29/92, Dwg. No. 89321 with ECN B-1 dated 4/30/92, Dwg. No. 89322 with ECN B-1 dated 4/30/92, and Dwg. No. 89323, Rev. A, dated 2/3/92, or later FAA approved revisions. Airplane Flight Manual Supplements dated 1/28/00 for A&B Models, and 1/28/00 for C Model, or later FAA approved revision is required.

FAA holder: Yates Aircraft LLC

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SR02160LAEngine and powerplant

Removal of two (2) Rolls-Royce engine models 250-C28C and installing two (2) Rolls-Royce engine models 250-C30P in accordance with CALSTAR Master Drawing List CAL201, Revision B, dated May 16, 2008, or later FAA-approved revision. The following CALSTAR continued airworthiness supplement is applicable to aircraft modified in accordance with this STC: Installation of (2) Rolls-Royce Engines 250-C30P Engines, Eurocopter Canada Limited BO 105 LS-A-3, Calstar 203-ICA The CALSTAR FAA-approved Rotorcraft Flight Manual Supplement, CAL204, Revision I/R, dated July 30, 2008, or later FAA-approved revision is required with this installation. CALSTAR FAA-approved Installation Instructions Rolls-Royce 250-C30P Engine, CAL205, Revision A, dated May 16, 2008, or later FAA-approved revision is required with this installation. Certification Basis for this modification: See TCDS H6NE. It was determined that there is no acoustical change in accordance with 21.93(b) as a result of this modification.

FAA holder: California Shock/Truma Air Rescue (CALSTAR)

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SA1835SOEngine and powerplant

Install Teledyne Continental Motors Model IO-550-B engine, Hartzell HC-C4YF-1E/FC7063Q propeller and Hartzell D4511P, spinner on all models per Colemill Drawing P/N 82000C. Install Teledyne Continental Motors Model IO550-B engine, McCauley 3A32C76/82NB-2 propeller and McCauley D3584 spinner on models S-35, V35A, V35B, E33A, E33C, 35-C33A, F33A, and F33C per Colemill Drawing No. 82000, Rev. D. dated 10-30-87 or later FAA approved revision. Engines installed on models S35, V35, V35A, V35B, E33A, E33C, 35-C33A, F33A, and F33C are derated to 285 horsepower per AFMS. For 36/A36 models only, stall strip P/N 82000-4, per Colemill Drawing P/N 82000C, is required.

FAA holder: Mike Jones Aircraft Sales Inc.

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SA02326LAEngine and powerplant

The Adam A500 Airplane was certificated on May 11, 2005, with Airworthiness Limitations on listed items contained in the Adam Aircraft A500 Airplane Maintenance Manual, C-01-001-02 AMM in Chapter 4 Airworthiness Limitations. This STC removes the 65-flight hour replacement interval for the aft engine turbocharger P/N P-01-87275-551 Aft Intercooler Left Louver Assembly, and P/N P-01-87275-553 Aft Intercooler Right Louver Assembly, when inspected per this STC s limitations and conditions.

FAA holder: CORPORATE AIR TECHNOLOGY

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SA3825SWEngine and powerplant

Installation of a Teledyne Continental Motors IO-470-F engine, fuel system modifications, and a McCauley D2A34C58/90AT-8 (82 dia.), 2A34C66/90AT-8 (82 dia.) or 2A34C50/90A-8 (82 dia.) propeller; or Hartzell BHC-G2YF-1BF/F8468A-2R (82 dia.) propeller as defined in Table I on page 3 of this certificate. OR, Installation of a Teledyne Continental Motors IO-550-D engine, fuel system modifications, and a McCauley D3A34C401/90DFA-8 (Model 182 E, F, G, H, J, K, L, M, N, P, Q, and R) or D3A34C401/90DFA-4 propeller (Model 182P, Q and R only), as defined in Table I on page 3 of this certificate. Data Required: 1. A copy of this certificate and, 2. Item 1, 2, 3 or 4 as defined in Table I on page 3 of this certificate.

FAA holder: Peterson Todd and Jo

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