# STC SA00537SE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Micro AeroDynamics Inc, United States
- Description: Installation of vortex generators on the wing and rudder surfaces, and installation of nacelle strakes.
- Applied: May 1, 1998
- Status date: July 16, 1998
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/dc/f7/dcf79439bfdb55615e710b342b9cabc012e5d4034f37580f2ba0252c0dceafcd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F484E278C98C33D08625731D00538E16.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00537SE

## ADs that name it (0)

None.

## Approved models (2)

- Cessna Aircraft Company 421 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 421A ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))

## 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.

llnitro6IaIm Ii .Aumim ~ ofW11ll1S'J.IOflaf1/1Wmti1\uiutiun.Mniniatrulimt ~ppltmcutal WupCQLcrtificatc /f/anufeF SA00537SE Micro AeroDynamics, Inc.

4000 Airport Rd.Suite D Anacortes,VVA 98221 cedijfe.1 tA'at tA'c ~ Vi-tA'c tyrt-edeltjm /be tA'e/bll{nuvtp /vO'du;t mid tA'c hm"tatwmJ O//<£ cO/t-d"tw/1.1 tA'ere/be a.1:yt-ecijfetl A'creu/i-meet.1 tA'e aVmod~.1.1 ee'1utH/lU'41t.1o/glJo.4 .J0'/tA'e ~oi,!' J3f"" 9f'epu&.twmJ.

&e{?t/uz/glJeodu;t-~t-e '??edijfeate ./fIurmf'ee.' A7CE ./tzA'c.' Cessna ~del.' 421,421A gelcnjztwn 0'/tA'e ~t-e ge.1tf?a '?fktpe.' Installation of vortex generators on the wing and rudder surfaces, and installation of nacelle strakes in accordance with Micro AeroDynamics Drawing Package MA2107, Revision IR, dated May 1, 1998, and Installation Manual MA2108, Revision IR, dated May 1, 1998, or later FAA approved revision.

5'fm."tatwmJ tZ/w'$'ondl."tw/l.1: Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to aircraft 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 (5) vortex generators or either nacelle strake 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.

ee/ufr/Cd .1IM/U'"/tdedreuO'£ed O'ea teemvtatw/t ck£e iJ otA'enuiJe e.1td&A'ctI d#tA'e J3fdnUu:Jtea!oe 0/tA'e 9;deedS'fuia/w/t J3fahwtiJteatw/t.

July 16, 1998 (. ignature) Acti g Manager, Seattle Aircraft C rtification Office (Title)

This certific;Jte may be tnl1Jsferred in ,/ccord:mce with FAR 2J.47.

**FAA FOAM 8110-2(10-68)**

## Every issue (1)

- July 16, 1998: Issued, Current. [certificate](https://openairdocs.org/files/sha256/dc/f7/dcf79439bfdb55615e710b342b9cabc012e5d4034f37580f2ba0252c0dceafcd)

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