# STC SA3436SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Century Automatic Flight System Model AK941 consisting of Century 41 autopilot or Model AD941FD consisting of a Century 41 Flight Director Autopilot
- Applied: November 14, 1985
- Status date: December 30, 1985
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A51EU](https://openairdocs.org/tcds/A51EU)
- Certificate PDF: https://openairdocs.org/files/sha256/7a/79/7a793cf914a02be9a95c87145a444bc47bbe900c06c314adf3a189c095f3f7cd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/804A51348E1855EA85256CC2000A980D.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3436SW-D

## ADs that name it (0)

None.

## Approved models (1)

- SOCATA TB 20 ([TCDS A51EU](https://openairdocs.org/tcds/A51EU))

## 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 £tatu of 3mmca Btpartmcnt of transportation —federal 2toiation administration Supplemental 'Cgpe Certificate SA3436SW-D Century Flight Systems, Inc.

F.M. 1195 P.O. Box 610 Mineral Wells, TX 76067 ^ ^5£^^(i^4^a£il^^j V^ Aft**^£cdA4***?n/m44&J/iejwtwt>rJ%^ 23 ^^{^.Federal Air iSle<au/a£j>nA £kiM-na4 \JpccUict —— <^/pfi&'&e*£^UM£e'<Su&nw0r-: 51EU SOCATA TB-20 _.__.7...... ._._ _.._ . Installation of Century Automatic Flight System Model AK941 consisting of a Century 41 Autopilot, or Model AK941FD consisting of a Century 41 Flight Director Autopilot, per Bulletin No. 1072, dated 10-8-85 and Master Drawing List No. 87A1150 dated 10-8-85.

: FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S980, dated 11-14-85 is required.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

~«<*r^ SXeforUmi&tfa&r-j&J&e' 11-14-85 12-30-85 (Signature) William L. Johns DAS Staff Coordinator. DAS 7 SW(Title)

This certificate may bt transferred in accordance with FAR 21.47.

FAX h»M I110-2 (10-68)

.NSTRUCTIONS: The transfer endowment be.ow may be used ,o notify the appropriate FAA Kegio«.l Offic* of the transfer of this Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee).

(Address of transferee). ( Mumba tnJ ttrttt) . Slate. »»J ZIP axf* I from (Name of grantor) (Print or type).

(Address of grantor) __ (Xumkf fiut tltttl) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- December 30, 1985: Issued, Current. [certificate](https://openairdocs.org/files/sha256/7a/79/7a793cf914a02be9a95c87145a444bc47bbe900c06c314adf3a189c095f3f7cd)

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