# STC SA4917NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Fletchair Inc., United States - Description: Modification of upper engine cowl. - Applied: March 12, 1990 - Status date: March 2, 2012 - Product: Aircraft, Single-Engine - Certification basis: Part 21, Part 23 - Data sheets: [TCDS A11EA](https://openairdocs.org/tcds/A11EA) - Certificate PDF: https://openairdocs.org/files/sha256/f8/af/f8af647181b12025a6079c44be5d7611b8d996a49d68ed15a454716ac40ae5a2 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CC03EFB4E89686A3862582F7006336E8.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA4917NM ## ADs that name it (0) None. ## Approved models (4) - True Flight Holdings LLC AA-1 ([TCDS A11EA](https://openairdocs.org/tcds/A11EA)) - True Flight Holdings LLC AA-1A ([TCDS A11EA](https://openairdocs.org/tcds/A11EA)) - True Flight Holdings LLC AA-1B ([TCDS A11EA](https://openairdocs.org/tcds/A11EA)) - True Flight Holdings LLC AA-1C ([TCDS A11EA](https://openairdocs.org/tcds/A11EA)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number SA4917NM This certificate, issued to Fletchair, Inc. 103 Turkey Run Lane Comfort, TX 78013 Part 23 of the Federal Aviation Regulations. Original ProductType Certificate Number: A11EA Make: True Flight Holdings, LLC (Gulfstream American, American General) Model: AA-1; AA-1A; AA-1B; and AA-1C Description of the Type Design Change: Modification of upper engine cowl in accordance with Aviation Development Corporation Drawing List DL210 and Installation Instructions I 210, both dated March 10, 1990, or later Federal Aviation Administration approved revisions. Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be ext ended to other 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 that aircraft. A copy of this certificate must be maintained as part of the permanent records for 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: March 12, 1990 Date reissued: March 2, 2012 Date of issuance: April 16, 1990 Date amended: (Signature) Acting Manager, Seattle Aircraft Certification Office (Title) ## Every issue (2) - March 2, 2012: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f8/af/f8af647181b12025a6079c44be5d7611b8d996a49d68ed15a454716ac40ae5a2) - April 16, 1990: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/68/7d/687d556fefad35212a43bad9638a3d549ee10d4c53fd0ad0ca32a1fa2520fa62) --- 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.