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Aircraft STC directory

Cessna Aircraft 172H STCs

The Jun 30, 2026 FAA DRS snapshot contains 42 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 172H. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

42
listed Current at snapshot
27
holder directories
9
modification categories
May 20, 2025
latest recorded revision

Modification demand surface

Other aircraft modifications15
Engine and powerplant7
Avionics7
Fuel systems4
Aircraft structures2
Aircraft performance2
Cabin and interiors2
Flight controls2
Landing gear and brakes1

Recorded holders

Aircraft Development Co3Knots 2U Ltd.2Garmin AT Inc.2Power Flow Systems Inc.1Acron Aviation Inc.1Saf-Air Products Inc.1Baumann Floats LLC1DAC International Inc1Air Plains Services Corporation1Kenmore Air Harbor Inc1AMSAFE Inc.1Alpha Aviation Inc1Steve's Aircraft1Icarus Avionics, LLC1F. Atlee Dodge Aircraft Services, LLC1Electronics International Inc.1M-20 Oil Separators LLC1J P Instruments1Honeywell International Inc1Del-Air1

Recently revised 172H STCs

Showing the 42 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA01801ATEngine and powerplant

For the Cessna 172 airplane models incorporating Lycoming O-320 engines: Modification of the standard exhaust system as documented in Laminar Flow Systems Installation Instructions Document, "Laminar Flow System Extractor Exhaust System" Revision A, dated, November 20, 1998 and Technical Drawing List, Book No. PFS-B-800, dated, November 16, 1998 or per Power Flow Systems, Inc. Installation Instructions Document PFS-0058-00, Rev. A, dated October 5, 2001 and Master Drawing List, Report No. PFS-0032-00, Rev. IR, dated August 10, 2000, or later FAA approved revisions. For the Cessna 172 airplane models incorporating Lycoming O-320 ,O-360 0r IO-360 engines: Modify the standard exhaust system as document in Power Flow Systems, Inc. Installation Instructions Document PFS-13250-00, Rev B, dated, December 9, 2002 and Master Drawing list PFS-13240-00, Rev, IR, dated October 3, 2002.

FAA holder: Power Flow Systems Inc

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