# STC SA2651NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Air Classic Rebuilders & Avionics LLC, United States - Description: Installation of a Lycoming O-360-A3A or -A4A engine, McCauley1A170E/JFA7658 propeller, McCauley C-5464 spacer and associated systems. - Applied: June 20, 1984 - Status date: November 13, 2002 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12) - Certificate PDF: https://openairdocs.org/files/sha256/7e/57/7e5729de5843ca905c66389c56253546d4a4e083f367f93c6e9df480e6df7144 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3DFA980A9DD682BC862575830074790A.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA2651NM ## ADs that name it (0) None. ## Approved models (2) - The Cessna Aircraft Company 172N ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 172P ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2651NM This certificate issued to: Air Classic Rebuilders & Avionics LLC 2108 W. Washington Ave. Yakima, WA 98903 Part 3 of the Civil Air Regulations. November 1, 1949, as amended by 3-1 through 3-12 Original Product -Type Certificate Number: 3A12 Make: Cessna Model: 172N and 172P Description of Type Design Change: Installation of a Lycoming 0-360-ABA or -A4A engine, McCauley 1A170E/JFA7658 propeller, McCauley C-5464 Spacer, and associated systems in accordance with Lee R. Smith Installation Instructions Manual No. 1196-1. dated October 1, 1981, or later FAA approved revision. Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of the aircraft. A copy of this Certificate and Addendum shall be maintained as part of the permanent records of the modified aircraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. Date of Application: June 20, 1984 Date Reissued: November 13, 2002 Date of Issuance: September 4, 1984 Date Amended: . 12/5/86; 11/13/02 FEDERAL AVIATION ircotion of Administra ADMINIST RATION (Signature) Acting Manager, Seattle Aircraft Certification Office (Title) United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA2651NM Air Classic Rebuilders & Avionics LLC Reissued: November 13, 2002 Amended: 12/5/86; 11/13/02 Limitations and Conditions: (cont'd/ Supplemental Type Certificate ADENDUM NO. SA2651NM The conditions and limitations of Type Certificate Data Sheet No. 3A12 apply except where superseded by the following: Supplemental Type Certificate Addendum, which is part of STC SA2651NM, prescribes the conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Civil Air Regulations. I. CESSNA 172N AND 172P 4 PCLM (NORMAL CATEGORY) AS MODIFIED BY STC SA2651NM Engine: Lycoming O-360-A3A or -A4A Fuel: 100/130 Octane Minimum Grade Aviation Gasoline Engine Limits: For all operations, 2700 RPM (180 Hp) Propeller and McCauley 1A170E/JFA7658 Propeller Limits: Diameter: 76" Maximum; 74.5 Min. Static Limits: 2450 RPM Maximum 2350 RPM Minimum CAUTION: Avoid continuous operation between 1850 and 2250 RPM (-AA only). Powerplant Instrument Oil Temperature: Markings: Green Arc 120° to 245°F - Normal operating range Yellow Arc 60°F - Caution Red Line 245°F - Maximum Oll Pressure. Green Arc 60 to 90 psi - Normal operating range Yellow Arc 25 to 60 psi and 90 to 100 psi - Caution Red Line 25 psi Minimum, 100 psi Maximum **FAA FORM 8110-2- 1 (10-69) PAGE 3 OF 4 PAGES** United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA2651NM Air Classic Rebuilders & Avionics LLC Reissued: November 13, 2002 Amended: 12/5/86; 11/13/02 Limitations and Conditions: (cont d/ Powerplant Instrument Tachometer: Markings: (continued) Green Arc 1500 to 2700 RPM - Normal Operating Range Red Line 2700 RPM - Maximum Red Arc 1850 to 2250 RPM - Avoid Continuous Operation Fuel Pressure: Green Arc 0.5 psi to 8 psi - Normal Operating Range Red Line 8 psi - Maximum at Sea Level Cylinder Head Temperature (Well-Type Thermocouple): Green Arc 200°F to 500°F - Normal Operating Range Red Line 500°F - Maximum C. G. Range: See Type Certificate Data Sheet 3A12 Maximum Weight: 2300 pounds - Model 172N 2400 Pounds - Model 172P Placards: The following placard is to be placed in front and in full view of the pilot: (For -3A3 engine only) **AVOID CONTINUOUS OPERATION BETWEEN 1850 AND 2250 RPM** - END - **FAA FORM 8110-2- 1 (10-69) PAGE 4 OF 4 PAGES** ## Every issue (1) - November 13, 2002: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/7e/57/7e5729de5843ca905c66389c56253546d4a4e083f367f93c6e9df480e6df7144) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.