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Who holds what · as the FAA records the name

Power Flow Systems INC

Named as the FAA publishes it on its approvals.

Holds 21 approved modifications, most of them for the Cessna 177 Cardinal. Holds 22 approvals to make replacement parts. FAA spelling: Power Flow Systems Inc.

Approved modifications 21 · newest first

2025-05-30SA03231AT · Installation of an improved performance exhaust system. · 19A, 23, A23-19
2025-05-30SA03015AT · Install Power Flow Systems, Inc. Improved Performance Exhaust System · OMF-100-160, SA 160
2025-05-30SA02871AT · Install Powerflow Systems, Inc., tuned exhaust system to enhance engine performance · M20E, M20F, M20J
2025-05-20SA02228AT · For model 172 airplanes with Lycoming O-360 engines per STC SA332GL or STC SA4428SW, modification of standard... · 172K, 172M, 172I
2025-05-20SA01801AT · For the Cessna 172 airplane models incorporating Lycoming O-320 engines: Modification of the standard exhaust system... · 172, 172A, 172B
2025-05-20SA1945CE · Increase normal category maximum gross weight from 2300 to 2400 lbs. and increase utility category maximum grow... · 172N
2025-05-20SA02200AK · Fabrication of replacement engine exhaust system assembly (P/N PA18ESA). · PA-18, PA-18-105 (Special), PA-18-125 (Army L-21A)
2025-05-20SA02105AT · Modification of engine exhaust system for improved engine performance by installation of a Laminar Flow System... · 177
2025-05-20SA02168AT · Modification of engine exhaust system for improved engine performance by installation of a Laminar Flow System... · PA-28-140, PA-28-150, PA-28-160
2025-05-20SA02385AK · Installation of replacement engine exhaust system assembly (P/N P55C180ESA) · 180
2025-05-20SA02115AT · Modification of engine exhaust system for improved engine performance by installation of a Laminar Flow System... · 177B, 177A
2020-04-22SA02416AK · Installation of replacement engine exhaust system · 180, 180A, 180B
2020-04-22SA02183AK · Fabrication of replacement engine exhaust system assembly (P/N PA18ESA). · PA-18, PA-18-105 (Special), PA-18-125 (Army L-21A)
2020-04-21SA02076AK · Fabrication of left hand and right hand exhaust stack assemblies(P/N LEES1250256-3 and LEES1250257-3). · 210M, 210B, 210C
2010-07-16SR03863AT · Installation of Power Flow Systems, Inc. (PFS) tuned exhaust system. · R22, R22 ALPHA, R22 BETA
2010-06-21SA03858AT · Installation of Power Flow Systems, Inc. (PFS) tuned exhaust system. · A-1B, A-1C-180
2008-10-01SA03623AT · Installation of Power Flow, Inc. (PFS) "improved performance" exhaust system. · 177RG, F177RG
2006-06-07SA03281AT · Install a Power Flow Systems, Incl, tuned exhaust system · DA 40, DA 40F
2003-12-04SA02674AT · Modification of engine exhaust system for improved engine performance by installation of Power Flow Systems, Inc.... · 177, 177A, 177B
2003-01-09SA02549AT · Modification of engine exhaust system for improved engine performance. · M20B, M20C, M20D
2002-01-08SA02448AT · Replace exhaust system with a tuned exhaust system. · AA-5A, AA-5B, AA-5

Replacement parts approved 22 parts manufacturer approvals, 22 current · Daytona Beach, FL

A parts manufacturer approval lets a company make a replacement part for someone else's aircraft or engine and sell it as an approved part. This company's approvals are mostly for engine (22).

2024-07-09Tuned Exhaust System PA18ESA · replaces PA18ESA · PA-20 with Lycoming O-320 installed per...
2021-04-21Tuned Exhaust System PA18ESA-160 · replaces Modification Article · PA-18, PA-18S, PA-18 “105” (Special)
2021-04-21Tuned Exhaust System LE-C205 · replaces Modification Article · 210-5 (205)210-5A (205A)210B-N, R, 206U206
2021-04-21Tuned Exhaust System LEESPA12ESA-180 · replaces Modification Article · PA-12, PA-12S
2021-04-21Tuned Exhaust System LE-C180-55 · replaces Modification Article · 180 S/N 604, 614, 30000-32661
2021-04-21Tuned Exhaust System PA18ESA · replaces Modification Article · PA-18, PA-18S, PA-18 “105” (Special)
2021-04-21Tuned Exhaust System LEESPA12ESA-LM · replaces Modification Article · PA-12, PA-12S
2021-04-21Tuned Exhaust System LEESPA12ESA-SM · replaces Modification Article · PA-12, PA-12S
2021-04-21Tuned Exhaust System PA18ESA · replaces Modification Article · PA-18, PA-18S, PA-18 “105” (Special)
2020-12-06Tuned Exhaust System LE-PMCF · replaces Modification Article · 180, 180A-H, 180 J-K
2010-06-24Tuned Exhaust System PFS-18101 · replaces Modification Part · Aviat) (A-1B A-1C-180
2009-10-22Tuned Exhaust System PFS-15103 · replaces 15103 · DA42
2004-06-07Extractor Exhaust System PFS-16201 · replaces Modification Part · M20E, F, J
2002-08-04Extractor Exhaust System PFS-13801 · replaces Modification Part · AA-5, AA-5A, AA-5B
2002-08-04Extractor Exhaust System PFS-13803 · replaces Modification Part · AA-5, AA-5A, AA-5B
2001-02-01Extractor Exhaust System PFS-13203 · replaces Modification Part · 172, 172A-I, 172K-N
2001-02-01Extractor Exhaust System PFS-13202 · replaces Modification Part · 172, 172A-I, 172K-N
2000-10-10Extractor Exhaust System PFS-13702 · replaces Modification part · 177A
2000-08-16Extractor Exhaust System PFS-B-800 · replaces Modification Part · 172 I, 172 K-N, P with Lycoming O-320 Series...
2000-08-16Extractor Exhaust System PFS-13703 · replaces Modification Part · 177B
2000-08-16Extractor Exhaust System PFS-14140 · replaces Modification Part · PA-28-140
2000-08-16Extractor Exhaust System PFS-13701 · replaces Modification Part · 177

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.