# STC SA03858AT - Type: Supplemental type certificate - Status: Current, Issued - Holder: Power Flow Systems Inc, United States - Description: Installation of Power Flow Systems, Inc. (PFS) tuned exhaust system. - Applied: February 16, 2010 - Status date: June 21, 2010 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS A22NM](https://openairdocs.org/tcds/A22NM) - Certificate PDF: https://openairdocs.org/files/sha256/36/de/36dece20c203e311a6f4899afb3935cd418973a7f9b078a791ac663767a268cb - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/545DC412DD18BECB8625775A007BADFD.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA03858AT ## ADs that name it (0) None. ## Approved models (2) - Sky International Inc. A-1B ([TCDS A22NM](https://openairdocs.org/tcds/A22NM)) - Sky International Inc. A-1C-180 ([TCDS A22NM](https://openairdocs.org/tcds/A22NM)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. Haited States of Roarice Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA0838AT This certificate issued to: Power Flow Systems, Inc. 1585 Aviation Center Parkway Hanger 804 Daytona Beach, FL 32114 Certifies that the change in the type design ferthe fellowing produod with the livitations and onditions therefer as persified homon mech the aire collines myuinients of Part 23 of the Angulations. Original Product -Type Entificate, Sember: A22NM state: Sky International Make: A-IB, A-IC-180 rev IR dated 10/14/2009 or later FAA approved revisions. Installed per Power Flow Systems, Inc. drawing 118101, rev IR, dated Description of Type Design Change: Installation of Power Flow Systers, Inc. (PFS) tuned exhaust systen drawing PFS-18101, 10/14/2009 or later FAA approved revisions and Tuned Exhaust System Installation Instructions and Instructions for Continued Airworthiness, PFS-18150-00, rev A, dated 5/6/2010 or later FAA approved revisions. Simulatio and Yevadition. Instructions for Continued Airworthiness contained in Tuned Exhaust System Installation Instructions and Instructions for Continued Airworthiness, PFS-18150-00, rev A, dated 5/6/2010 or later FAA approved revisions must be made available to the operator at the time of installation. Airplane Flight Manual Supplement (AFMS), Revision IR, dated June 21, 2010, or later FAA approved revision, is a required part of this STC. (See continuation sheet 3 of 3) eviation Pado o/ applications: Fobruary 16.,2010 Date missed: Date o/'issanos: June 21, 2010 I scle anvanded: FEDERAL AVLATION Sy dinaalion of the desinistrate. кодинам (Signature) INSTRATIO (Title) ПА Го 8110-2(10-69) PAER 1 OF 3 PAGES authed tates of Neste Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SADSUSPAT Date of Issuance: June 21, 2010 Limitations and Conditions: (Contined): The engine performance effects of this STC were evaluated and were found to be within the limitmioas of the engine, propeller and aircraft Type Certificates. Any additional modifications that contribute to HP increases could advoracly affect the aircraft, engine or propeller airworthineas. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporsed, unless it is determined by the installer that the interrelationship between this changs and any other pernit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that previousty approved modifications will produce no adverse effect upon the airwoithiness of that airplane. If the holder agrees to permission Certificalion Basis: change Based on 14CFR §& 21.115 and 21.101, this STC modification to the type design is considered not to be a n yor or significant through 36-28 and 14CFR §§ 21 through 21-37. Original Certification Basis: Besed on 14CFR §§ 23 effective February 1, 1965 as amended by 23-1 through 23-31, 14CFR §§ 36 Regulations Addressed: At current amendment: 23.21, 23.65, 23.609, 23.907, 23.1101. 23.1105, 23.1123, 23.1152 amendkaent 23-14: 23.1017(2); At amendent 23-17: 23.607; At amendment 23-18: 23.1121; At amendment 23-20: 23.1301 At Rerubtions an imtermediate sinndn; At amendment 23-7: 23.611, 23.1041, 23.1091(2), (3); At amendment 23-10: 23.1; At (&X{]). amendment 23-21: 23.51, 23.1043, 23.1047; At 23-23 amendment: 23.603, 23.605, 23.863; At amendment 23-29: 23.901, 23.1093 END ГлА Рот 0110-2-1(10-69) PAGE 3 DE 3 PAGES this cartificate say be cranelested in accordence vith FaR 21.17. ## Every issue (1) - June 21, 2010: Issued, Current. [certificate](https://openairdocs.org/files/sha256/36/de/36dece20c203e311a6f4899afb3935cd418973a7f9b078a791ac663767a268cb) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). 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