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FAA-listed STC holder

Power Flow Systems Inc. STCs

The Jun 30, 2026 FAA DRS snapshot lists 21 selected supplemental type certificates with status Current under Power Flow Systems Inc.. The records span 146 public aircraft directories and 2 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

21
listed Current at snapshot
146
aircraft directories
2
modification categories
May 30, 2025
latest recorded revision

Modification mix

Engine and powerplant20
Aircraft performance1

Aircraft represented

Cessna Aircraft 172154 STCsCessna Aircraft 172K147 STCsCessna Aircraft 172D146 STCsCessna Aircraft 172E146 STCsCessna Aircraft 172M146 STCsCessna Aircraft 172I145 STCsCessna Aircraft 172N145 STCsCessna Aircraft 172G142 STCsCessna Aircraft 172L141 STCsCessna Aircraft 172B140 STCsCessna Aircraft 172C140 STCsCessna Aircraft 172A138 STCsCessna Aircraft 180136 STCsCessna Aircraft 172P133 STCsPiper Aircraft PA-18-150133 STCsCessna Aircraft 172F (USAF T-41A)132 STCsCessna Aircraft 172H (USAF T-41A)122 STCsPiper Aircraft PA-18122 STCsPiper Aircraft PA-18-135122 STCsPiper Aircraft PA-18A121 STCs

Recently revised records

Showing the 21 most recently revised records. Category directories provide the complete paginated discovery path.

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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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

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