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
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.
21 displayed records.
Search every indexed record for this holder. The table below contains the recently revised records shown on this page.
| STC and modification | Aircraft / model / TC | Source status and dates | Holder and authority |
|---|---|---|---|
SA02871ATInstall Powerflow Systems, Inc., tuned exhaust system to enhance engine performance.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA03015ATInstall Power Flow Systems, Inc. Improved Performance Exhaust System.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA03231ATInstallation of an improved performance exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA01801ATFor 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.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc FAA authority record |
SA02105ATModification of engine exhaust system for improved engine performance by installation of a Laminar Flow System Extractor Exhaust System.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA02115ATModification of engine exhaust system for improved engine performance by installation of a Laminar Flow System extractor exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA02168ATModification of engine exhaust system for improved engine performance by installation of a Laminar Flow System Extractor Exhaust System.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA02200AKFabrication of replacement engine exhaust system assembly (P/N PA18ESA).Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA02228ATFor model 172 airplanes with Lycoming O-360 engines per STC SA332GL or STC SA4428SW, modification of standard exhaust system. For model 172 with Lycoming O-360 engines per STC SA647CE or STC SA1324CE, modification of standard exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc FAA authority record |
SA02385AKInstallation of replacement engine exhaust system assembly (P/N P55C180ESA).Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA1945CEIncrease normal category maximum gross weight from 2300 to 2400 lbs. and increase utility category maximum grow weight from 2000 to 2100 lbs. per Installation Instructions, STC SA1945CE, Gross Weight Increase for the C172N with an FAA approval date of January 3, 1989, or later.Aircraft performanceView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA02183AKFabrication of replacement engine exhaust system assembly (P/N PA18ESA).Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA02416AKInstallation of replacement engine exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SA02076AKFabrication of left hand and right hand exhaust stack assemblies(P/N LEES1250256-3 and LEES1250257-3).Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc. FAA authority record |
SR03863ATInstallation of Power Flow Systems, Inc. (PFS) tuned exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc FAA authority record |
SA03858ATInstallation of Power Flow Systems, Inc. (PFS) tuned exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc FAA authority record |
SA03623ATInstallation of Power Flow, Inc. (PFS) "improved performance" exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc FAA authority record |
SA03281ATInstall a Power Flow Systems, Incl, tuned exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc FAA authority record |
SA02674ATModification 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.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc FAA authority record |
SA02549ATModification of engine exhaust system for improved engine performance.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Power Flow Systems Inc FAA authority record |
SA02448ATReplace exhaust system with a tuned exhaust system.Engine and powerplantView record |
| Current at cited snapshot Application: Not listed | FAA holder: Power Flow Systems Inc FAA authority record |