SA02105ATEngine and powerplant
Modification of engine exhaust system for improved engine performance by installation of a Laminar Flow System Extractor Exhaust System.
FAA holder: Power Flow Systems Inc.
Aircraft STC directory
Cessna Aircraft 177 STCs
The Jun 30, 2026 FAA DRS snapshot contains 43 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 177. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
43
listed Current at snapshot
30
holder directories
9
modification categories
May 20, 2025
latest recorded revision
Modification demand surface
Other aircraft modifications15
Engine and powerplant11
Avionics7
Landing gear and brakes3
Fuel systems2
Cabin and interiors2
Aircraft structures1
Flight controls1
Electrical systems1
Recorded holders
Power Flow Systems Inc.2Maple Leaf Aviation Ltd2Precise Flight Inc2S-TEC Corporation2LegacySTC.com1Quantum Swiss LLC1Genesys Aerosystems Inc.1Saf-Air Products Inc.1PECO Inc1Airwolf Filter Corporation1Airglas Inc.1Brittain Industries, Inc1Aerotech Components Inc1BAS Inc1Lord Corporation1Chelton Flight Systems Inc.1Aero Safe Corporation1Gold Coast Aviation Service Inc1Hartwig Aircraft Fuel Cell Repair1EAA Aviation Foundation1
Recently revised 177 STCs
Showing the 43 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA1043SWEngine and powerplant
Installation of Lycoming O-360-A1A or O-360-A3A engine and Hartzell Constant-Speed Propeller Model HC-C2YK-1B/7666A-2.
FAA holder: Quantum Swiss LLC
SA02203AK (PAGE 2)Avionics
Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV).
FAA holder: Genesys Aerosystems Inc.
SA02227AKEngine and powerplant
Installation of a Lycoming O-320-E2D engine.
FAA holder: John P. Zarling
SA1400SOFuel systems
Remove drain plug, Cessna Part Number MS20913-10 or MS20913-ID, from the fuel selector valve, and replace with CAV-110D (MT-1077) or CAV-110H-4D (CM-1077) (See page 3 for model serial numbers.).
FAA holder: Saf-Air Products Inc.
SA00908NYOther aircraft modifications
Installation of Fiberglass stabilator tips.
FAA holder: Maple Leaf Aviation Ltd
SA3861WEOther aircraft modifications
Installation of an air/oil separator.
FAA holder: Airwolf Filter Corporation
SA02069AKLanding gear and brakes
Fabrication and Installation of the Airglas Inc Landes PA32-206LA Nose Fork equipped with up to a 8.50 x 6 tire.
FAA holder: Airglas Inc.
SA2162NMOther aircraft modifications
Installation of the Precise Flight stand-by vacuum system (SVS).
FAA holder: Precise Flight Inc
SA1608WEFlight controls
Installation of Brittain Industries, Inc. Model B2C Flight Control System.
FAA holder: Brittain Industries, Inc
SA475CHOther aircraft modifications
Installation of Inline Air Filter Kit, P/N CV1J4-C.
FAA holder: Aerotech Components Inc
SA2067NMOther aircraft modifications
Installation of BAS, Inc. TSO Shoulder Harness and BAS Inc. Harness System.
FAA holder: BAS Inc
SA02867NYLanding gear and brakes
Installation of the Lord Corporation Nose Wheel Shimmy Damper Part Number SE-1088-1 in accordance with Lord Corporation Installation Drawing List Document No. SE-1088-IDL, Revision IR, dated 4/22/2008 or later FAA approved revisions.
FAA holder: Lord Corporation
SA02293AK (2 OF 3)Avionics
Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV).
FAA holder: Chelton Flight Systems Inc.
SA01442WIEngine and powerplant
Installation of Lycoming IO-360-A1B6D engine, McCauley B2D34C207/78TCA propeller, and associated systems modifications.
FAA holder: Vanderhoof Chad
SA5701SWAvionics
Installation of electrically driven vacuum pump as a standby auxiliary pump to the existing instrument.
FAA holder: Aero Safe Corporation
SA00230BOEngine and powerplant
Installation of Lycoming Model O-360-A1F6 engine to replace existing Lycoming O-360-F1A6 engine. This approval is limited to the installation made in Cessna Model 177, Serial Number 17700380 ONLY.
FAA holder: Catallozzi Edmund J
SA01548SEEngine and powerplant
Installation of a Lycoming O-320-E2D engine modified by STC SE3692SW.
FAA holder: Gold Coast Aviation Service Inc
SA01889NYOther aircraft modifications
Fabrication and installation of an FRP Lower Cowl Fairing.
FAA holder: Sobchuk Roy
SA02208AKEngine and powerplant
Installation of Lycoming O-320-E2D modified engine. Limited to installation on model 177, serial number 01049 ONLY.
FAA holder: Hot Springs Aviation
SA2457CEFuel systems
Installation of fuel inlets and caps. (177B S/N 17700001 THRU 17702752).
FAA holder: Hartwig Aircraft Fuel Cell Repair
SA803GLOther aircraft modifications
Superseded by STC SA01944CH. Modify airplane to fly on unleaded automotive gasoline, 87 minimum antiknock index, STC SE800GL approves, 87 minimum antiknock index.
FAA holder: EAA Aviation Foundation
SA02795ATCabin and interiors
Installation of a PXE7300SR, In-Flight Entertainment System.
FAA holder: PS Engineering Incorporated
SA10222SCAvionics
Installation of a Chelton Aviation Corp (CAC) AP-3C autopilot in accordance with Master Drawing List No. MS-005-12, Rev. F, dated February 3, 2004, or later FAA approved revision. FAA approved Airplane Flight Manual MS-005-14, Rev. I. R., dated February 5, 2004, or later FAA approved revision is required.
FAA holder: Chelton Aviation Corporation
SA02674ATEngine and powerplant
Modification of engine exhaust system for improved engine performance by installation of Power Flow Systems, Inc. Tuned Exhaust System per Master Drawing List, PFS-13740-00, Revision, IR, dated: 06/05/03 or Master Drawing List, PFS-13741-00, Revision, IR, dated: 11/26/03 and Installation Instructions Report, PFS-13750-00, Revision A, dated: 08/30/02 or Installation Instructions contained in Report PFS-13751-00, Revision, IR, dated: 11/26/03 or later FAA approved revision.
FAA holder: Power Flow Systems Inc
SA2166NMOther aircraft modifications
Installation of the Precise Flight stand-by vacuum system (SVS).
FAA holder: Precise Flight Inc
SA4964NMOther aircraft modifications
Installation of a NSA sunvisor system for the pilot and copilot.
FAA holder: Rosen Sunvisor Systems LLC
SA00165BOOther aircraft modifications
Installation of Avidyne Corporation Datalink Coupler, part number 700-00015-000 per Avidyne Corporation Master Document List, Document No. AVACP-006 dtd 1/2/93 or later FAA-approved revisions.
FAA holder: Avidyne Corporation
SA00419NYOther aircraft modifications
Installation of cockpit utility light.
FAA holder: Burns Richard G
SA01386NYEngine and powerplant
Installation of Fibre Glass Reinforced Plastic Nacelle Fairing, Trade Name 'Exhaust Fairing".
FAA holder: Maple Leaf Aviation Ltd
SA839NELanding gear and brakes
Installation of William C. Roberts stainless steel brake discs P/N 201-195 SS 201-260 SS, 201-440 SS, 201-40 SS in lieu of Cessna, carbon steel brake discs, Cessna P/N B-30195, C164-26A, C-30440, C164-40 respectively.
FAA holder: Flight Life, Inc.
SA6023NMEngine and powerplant
Installation of an electronic digital engine tachometer, Model P-1000.
FAA holder: Horizon Instruments Inc
SA01033SEOther aircraft modifications
Installation of vortex generators on wings and tail surfaces in accordance with Drawing Package MA2162, Revision IR, dated November 1, 2001, and Installation Manual MA2163, Revision IR, dated December 3, 2001, or later FAA approved revisions. If more than five vortex generators are damaged or missing, the aircraft is not airworthy.
FAA holder: Micro AeroDynamics Inc
SA2832SOAvionics
Installation of a combination radio/throttle/gust lock.
FAA holder: RT Aerospace Corp
SA3286SOEngine and powerplant
Installationof engine cowling and firewall fasteners. (177 S/N 00001 THRU 02752) (177 RG S/N 0001 THRU 1366).
FAA holder: Skybolt Aeromotive Corp
SA00958SEElectrical systems
Manufacture and installation of audio control panel in accordance with wiring diagrams, specifications, and photographs contained within the FAA project file. Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval for change in type design is limited to Cessna Model 177, Serial Numbers 17700123 and 17700674 only.
FAA holder: Heyworth Eugene
SA09125AC-DOther aircraft modifications
Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-608,.
FAA holder: S-TEC Corporation
SA09433AC-DOther aircraft modifications
Installation of S-TEC System 40X/50X Single and Two Axis Automatic Flight Guidance Systems, Model ST-783-40X/50X.
FAA holder: S-TEC Corporation