# STC SA01053SE - Type: Supplemental type certificate - Status: Current, Amended - Holder: Kawak Aviation Technologies Inc, United States - Description: Fabrication of Ag-Air Systems Model YD61600 Auxiliary Hydraulic System. - Applied: October 3, 2001 - Status date: August 10, 2006 - Product: Aircraft, Single-Engine - Certification basis: Part 21, Part 23 - Data sheets: [TCDS A19SW](https://openairdocs.org/tcds/A19SW) - Certificate PDF: https://openairdocs.org/files/sha256/f7/db/f7dbc06f66a592b73e1ce426a50aa020d606f04967d0d0a0537d9af19a894e0d - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AE42D430CDB9B1D3862571CD0069AF52.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA01053SE ## ADs that name it (0) None. ## Approved models (2) - Air Tractor Inc. AT-802 ([TCDS A19SW](https://openairdocs.org/tcds/A19SW)) - Air Tractor Inc. AT-802A ([TCDS A19SW](https://openairdocs.org/tcds/A19SW)) ## 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. United States of America Department of Transportation_Federal Aviation Administration Supplemental Type Certificate Number SA01053SE This certificate, issued to Kawak Aviation Technologies, Inc. 20690 Carmen Loop, Suite 102 Bend, OR 97702 Part 23 of the Federal Aviation Regulations. Original Product ⎯ Type Certificate Number: A19SW Make: Air Tractor Model: AT-802A, AT-802 Description of the Type Design Change: Fabrication of Kawak Aviation Technologies Inc. YD61600 Auxiliary Hydraulic System in accordance with Kawak Aviation Technologies Inc. Drawing List No. 35400-MDL, Revision C, dated July 31, 2006, or later Federal Aviation Administration (FAA) approved revision. Install in accordance with Kawak Aviation Technologies Inc. Installation Manual No. KATI-IM- 663, Revision B, dated August 9, 2006, or later FAA approved revision. Maintain in accordance with Kawak Aviation Technologies Inc. Airplane Maintenance Manual Supplement No. KATI-MM-663, Revision B, dated July 15, 2006, or later FAA approved revision. Limitations and Conditions: This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and other previously approved modification will introduce no adverse effect upon the airworthiness of the aircraft. A copy of this Certificate and Kawak Aviation Technologies Inc. Aircraft Flight Manual Supplement No. KATI-FM-663, Revision A, dated August 10, 2006, or later FAA approved revision, 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: October 3, 2001 Date reissued: June 28, 2006 Date of issuance: February 22, 2002 Date amended: March 6, 2002, August 10, 2006 (Signature) Acting Manager, Seattle Aircraft Certification Office (Title) ## Every issue (3) - August 10, 2006: Amended, Current. [certificate](https://openairdocs.org/files/sha256/f7/db/f7dbc06f66a592b73e1ce426a50aa020d606f04967d0d0a0537d9af19a894e0d) - June 28, 2006: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/71/a1/71a1a6de824471b9039bc32e96d1f29f50022f0553321023c4260bdea8fbeeac) - March 6, 2002: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/da/bf/dabfb365a8a8d8df7b847f3bab32e1c6760a11a759c410ef2381f2bdd3733bc6) --- 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.