# STC SA01666SE - Type: Supplemental type certificate - Status: Current, Issued - Holder: American Aviation Inc, United States - Description: Installation of American Aviation designed exhaust stacks. - Applied: September 20, 2005 - Status date: April 4, 2006 - Product: Aircraft, Single-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20) - Certificate PDF: https://openairdocs.org/files/sha256/1f/81/1f814a3c3f20f94af2580cb80f46f3615d8f8c37d32940c7fee3d04a4944631a - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C7EA1936AF0DDA8786257179004C745A.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA01666SE ## ADs that name it (0) None. ## Approved models (5) - Raytheon Aircraft Company 65-90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20)) - Raytheon Aircraft Company 65-A90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20)) - Raytheon Aircraft Company 65-A90-1 ([TCDS 3A20](https://openairdocs.org/tcds/3A20)) - Raytheon Aircraft Company 65-A90-4 ([TCDS 3A20](https://openairdocs.org/tcds/3A20)) - Raytheon Aircraft Company B90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20)) ## 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. Number SA01666SE This certificate, issued to American Aviation, Inc. 10555 Airport Drive Coeur d’Alene Airport Hayden Lake, ID 83835 Part 3 of the Civil Aviation Regulations. Original Product⎯Type Certificate Number: 3A20 Make: Raytheon (Beech) Model: 65-90, 65-A90, 65-A90-1, 65-A90-4, B90 Description of the Type Design Change: Installation of American Aviation designed exhaust stacks in accordance with American Aviation Top Drawing List 061-2 TDL dated January 21, 1999 or later FAA approved revision. Limitations and Conditions: This Supplemental Type Certificate requires the prior or concurrent incorporation of one of the following Supplemental Type Certificates: SA822SO Installation of Pratt & Whitney PT6A-28 engines SA3501SW Installation of Pratt & Whitney PT6A-27/28 or PT6A-35/34B engines SA526SO Installation of Pratt & Whitney PT6A-28 engines SA1206SW Installation of Pratt & Whitney PT6A-28 engines SA2740SW Installation of Pratt & Whitney PT6A-135 engines SA02238AT Installation of Pratt & Whitney PT6A-34 engines SA4705SW Installation of Pratt & Whitney PT6A-27 or -28 engines Date of application: September 20, 2005 Date reissued: Date of issuance: April 4, 2006 Date amended: __Original signed by Jon Regimbal (Signature) Acting Manager, Seattle Aircraft Certification Office (Title) Number SA01666SE American Aviation, Inc. Reissued: Amended: Limitations and Conditions: (cont’d) Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved This approval should not be extended 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. - END - **FAA FORM 8110-2- 1 (10-69)** ## Every issue (1) - April 4, 2006: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1f/81/1f814a3c3f20f94af2580cb80f46f3615d8f8c37d32940c7fee3d04a4944631a) --- 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.