# STC SA4165NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Fletchair Inc., United States - Description: Installation of a Lycoming O-540-E4A5 engine and a Hartzell Model HC-C2YK-8477-8R propeller - Applied: January 25, 1988 - Status date: June 9, 2022 - Product: Aircraft - Certification basis: Part 21, Part 23 - Data sheets: [TCDS A16EA](https://openairdocs.org/tcds/A16EA) - Certificate PDF: https://openairdocs.org/files/sha256/d7/73/d7733efc602d4889e293678bf26e43821157e7933dd3fca6ba598197bad16596 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2AB0978F8DF6993586258893004E8516.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA4165NM ## ADs that name it (0) None. ## Approved models (1) - True Flight Holdings LLC AA-5A ([TCDS A16EA](https://openairdocs.org/tcds/A16EA)) ## What the certificate says Some pages are OCR from the scanned FAA certificate. OCR can misread letters and numbers. FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: (See Continuation Sheet Page 3 of 3 Pages) dated February 11, 1965, and Amendments 23-1 and 23-8. SA4165NM FletchAir, Inc. 103 Turkey Run Lane Comfort, TX 78013 23 the Federal Air Regulations A16EA Gulfstream American AA-5A Installation of a Lycoming 0-540-E4A5 engine and a Hartzeill Model HC-C2YK-8477-8R propeller in accordance with Ameromod photos 1 through 14C, dated December 1, 1986. Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Gulfstream Aerospace model AA-5A aircraft, Serial Number AA-5A-0115 only. A copy of this Certificate, Addendum No. SA4165NM, and FAA Approved Flight Manual Supplement dated January 25, 1988, must be maintained as part or the permanent records for the modified aircraft. June 25, 1985 June 9, 2022 January 25, 1988 For Acting Manager, Seattle ACO Branch 3 FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA4165NM 3 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA4165NM Supplemental Type Certificate ADDENDUM NO. SA4165NM The conditions and limitations of Type Certificate Data Sheet (TCDS) Number A16EA apply except where superseded by the following: Supplemental Type Certificate Data Sheet, which is part of STC SA4165NM, prescribes the conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Federal Air Regulations. Supplemental Type Certificate HOLDER: Maynard C. Crosby 1. MODEL AA-5A (NORMAL/UTILITY CATEGORY) AS MODIFIED BY STC SA4165NM Engine: Lycoming 0-540-E4A5 Fuel: 100/100LL Engine Limits: 260 HP at 2700 RPM Propeller and Propeller Limits: Hartzell HC-C2YK-8477-8R, 2700 RPM maximum, maximum diameter and minimum diameter 76 inches. Oil Capacity: 12 US quarts at (36.0) (6 qt. usable) (6 qt. minimum) Note 2: The following placards must be installed in full view of the pilot, or as indicated: (f) near fuel caps: "Fuel Minimum 100/100LL Octaine" (1) on instrument panel above prop control and in full view of pilot: "LOW PITCH - PUSH IN" End This FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 3 of 3 ## Every issue (2) - June 9, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d7/73/d7733efc602d4889e293678bf26e43821157e7933dd3fca6ba598197bad16596) - January 25, 1988: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/aa/5e/aa5e02f09b37fb88c47cfcb9b38a8717ecd17cb93f7289ac4959fba52a4c04b7) --- 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.