Supplemental Type Certificate
CESSNA 172S Skyhawk · Supplemental Type Certificate
Overview
This document is a Supplemental Type Certificate (STC) issued by the Federal Aviation Administration (FAA) for the installation of a specific propeller on Cessna 172 aircraft equipped with Lycoming O-360 series engines. The STC is held by Sensenich Propeller Company and outlines the conditions and limitations for the installation of the Sensenich Composite 2G0M8S(XX)/C76PGF propeller. It includes references to installation instructions and required documentation that must be adhered to for compliance with FAA regulations. The STC remains valid until it is surrendered, suspended, or revoked by the FAA.
- STC Number: SA02588AK
- Propeller Model: Sensenich Composite 2G0M8S(XX)/C76PGF
- Applicable Aircraft Model: Cessna 172 with Lycoming O-360 or IO-360 engines
- Installation must follow Sensenich's specific instructions and manuals
- STC is valid until surrendered, suspended, or revoked by the FAA.
Document
Source
Originally published by www.sensenich.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Supplemental Type Certificate
- Year
- 2025
- Pages
- 2
- File size
- 137 KB
- Publisher
- www.sensenich.com
Common. Rarer than 2% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the CESSNA 172S Skyhawk.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Description of Type Design Change
The STC allows for the installation of the Sensenich Composite 2G0M8S(XX)/C76PGF propeller on Cessna 172 aircraft that have previously had a Lycoming O-360 or IO-360 engine installed. The installation must follow specific instructions provided by Sensenich Propellers.
Limitations and Conditions
The installer must ensure compatibility with any previously approved modifications. The STC is valid only for aircraft with the specified Lycoming engines and requires adherence to Sensenich's Instructions for Continued Airworthiness and Supplemental Airplane Flight Manual.
Validity and Compliance
The STC remains effective until it is surrendered or revoked. It certifies that the design change meets airworthiness requirements as per FAA regulations.
Safety notes
- Possession of the STC does not grant rights to alter the aircraft without proper permissions.
- The installer must verify compatibility with previous modifications.
Full document text
United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Any alteration of this certificate is punishable by a fine of not exceeding $1,000, or imprisonment not exceeding 3 years, or both. This certificate may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21.47. Possession of this Supplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller. The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the STC holder. An STC holder who allows a person to use the STC to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA. (Ref. 14 CFR 21.120). FAA Form 8110-2 (03/21) Page 1 of 2 Number: SA02588AK This certificate issued to: Sensenich Propeller Company 2008 Wood Court Plant City, Florida 33563 Original Product Type Certificate Number: * Make: Model: Description of Type Design Change: Installation of Ground Adjustable Sensenich Composite 2G0M8S(XX)/C76PGF Propeller in accordance with Sensenich Propellers “Sensenich Two Blade Composite Aircraft Propeller Installation and Operation Instructions for Cessna 172 Aircraft with Lycoming O-360 Engines”, Doc. No. C172-2G0M8-IM, Rev. 0, dated November 9, 2024, or later FAA approved revision. Limitations and Conditions: 1. The installer must determine whether this design is compatible with previously approved modifications. 2. This STC is valid only for aircraft models that have previously had a Lycoming O-360 series engine, TCDS E-286 or Lycoming IO-360 series engine, TCDS 1E10 installed by a previously approved FAA installation procedure. 3. Installation shall be maintained in accordance with Sensenich Propellers “Instructions for Continued Airworthiness Manual G-Shank Series Composite Ground Adjustable Propellers”, Doc. No. SICA-G_20020214, Rev 0, dated April 7, 2022, or later FAA accepted revision. 4. Sensenich Propellers “Supplemental Airplane Flight Manual” Doc. No. 172-2G0M8-SAFM, Rev A, dated March 19, 2025, or later FAA approved revision, is a required part of this installation. This certificate and the supporting data which is the basis for approval shall remain in effect until surrendered, suspended, revoked, or a termination date is otherwise established by the Administrator of the Federal Aviation Administration. Date of Application: May 1, 2024 Date of Issuance: February 14, 2025 Date Reissued: Date Amended: March 19, 2025 By Direction of the Administrator Signature: ________________________ for Gregory S. DiLibero Title: Manager, West Certification Branch Certifies that the change in the type design for the following product with the limitations and conditions therefore as specified hereon meets the airworthiness requirements of Part * of * Aviation Regulations. * Refer to FAA Approved Model List (AML), Number SA02588AK, dated March 19, 2025, or later FAA approved revision. AUGUST A ASAY Digitally signed by AUGUST A ASAY Date: 2025.03.24 09:11:15 -08'00' United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Any alteration of this certificate is punishable by a fine of not exceeding $1,000, or imprisonment not exceeding 3 years, or both. This certificate may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21.47. Possession of this Supplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller. The STC’s supporting documentation (drawings, instructions, specifications flight manual supplements, etc.) is the property of the STC holder. An STC holder who allows a person to use the STC to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA. (Ref. 14 CFR 21.120). FAA Form 8110-2 (03/21) Page 2 of 2 Number: SA02588AK INSTRUCTIONS: The transfer endorsement below may be used to notify the appropriate FAA Aircraft Certification Office of the transfer of this Supplemental Type Certificate. The FAA will reissue the certificate in the name of the transferee and forward it to him. Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: SA02588AK To (Name and address of transferee): From (Name and address of grantor): Extent of Authority (if licensing agreement): Date of transfer: Signature of grantor:







