# STC SA00403SE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Micro AeroDynamics Inc, United States
- Description: Installation of Vortex Generators on the wings
- Applied: November 27, 1996
- Status date: May 1, 2013
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A9SW](https://openairdocs.org/tcds/A9SW), [TCDS A17SW](https://openairdocs.org/tcds/A17SW)
- Certificate PDF: https://openairdocs.org/files/sha256/49/29/4929ec41441f4cb3c413151a58db958380195a20025a576c6b51d223954b1622
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/23F0466AB9FCED4886257B5E00705C12.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00403SE

## ADs that name it (0)

None.

## Approved models (16)

- Air Tractor Inc. AT-300 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-301 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-302 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-400 ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-400A ([TCDS A9SW](https://openairdocs.org/tcds/A9SW))
- Air Tractor Inc. AT-401 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-401A ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-401B ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-402 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-402A ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-402B ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-501 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-502 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-502A ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-502B ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))
- Air Tractor Inc. AT-504 ([TCDS A17SW](https://openairdocs.org/tcds/A17SW))

## 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 SA00403SE

This certificate, issued to Micro AeroDynamics 4000 Airport Road, Suite D Anacortes, WA 98221

Part 23 and 21 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A9SW and A17SW Make: Air Tractor Model: A9SW: AT-300, AT-301, AT-302, AT-400, AT-400A A17SW: AT-401, AT-401A, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-504

Description of the Type Design Change: Installation of Vortex Generators on the wings in accordance with Micro AeroDynamics Drawing Package MA2073, Revision C, dated March 19, 2013, for Type Certificate (TC) A9SW airplanes; Micro AeroDynamics Drawing Package MA2074, Revision C, dated March 19, 2013, for TC A17SW airplanes; and Installation Manual MA2075, Revision D, dated March 19, 2013, for all airplanes, or later Federal Aviation Administration (FAA) approved revisions.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to other aircraft of these models 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. Additionally if more than five vortex generators are damaged or missing, the aircraft is not to be considered airworthy. 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: November 27, 1996 Date reissued:

Date of issuance: January 9, 1997 Date amended: May 1, 2013

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (2)

- May 1, 2013: Amended, Current. [certificate](https://openairdocs.org/files/sha256/49/29/4929ec41441f4cb3c413151a58db958380195a20025a576c6b51d223954b1622)
- January 9, 1997: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/62/db/62db1beae9172a62a398ad21a6d8160bb508130d509eca7b4e226715926f189f)

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