# STC SA3424SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Century automatic flight system Model AK927 consisting of a Century 41 autopilot or Model AK927FD consisting of a Century 41 flight director autopilot.
- Applied: June 14, 1984
- Status date: June 14, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/ed/b2/edb2595a8d47c774d6088ef0f41829c37c1a01e83f94fa0b494a8aee85e4ae68
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F471E89A405B26C485256CC2000A97EE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3424SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company P210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))

## 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 #tata of 9atrica Bepartment of ^transportation federal Stoiation Administration Supplemental t^pe Certificate iSuvrrwti' SA3424SW-D Century Flight Systems, Inc.

F,M. 1195 P.O. Box 610 Mineral Wells, TX 76067 3 s^jAf Civil Air t sfftf[14t4ii{4{*MA' 3A21 CESSNA P210N Installation of Century Automatic Flight System Model AK92f consisting of a Century 41 Autopilot, or Model AK927FD consisting of a Century 41 Flight Director Autopilot, per Bulletin No. 1057, dated 4-9-84 and Master Drawing List No. 87A1136 dated 4-9-84.

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S968, dated 6-7-84 is required.

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

>u 6-14-84 6-14-84 \ J (Signature) William L, Johns DAS Staff Coordinator, DAS 7 SW (Title)

Thu certificate may be transferred in accordance uiilh i-AR 21.17.

FAAFowtl 10-2(10-68)

.NSTRUCTIONS: The transferendorsement below may be used ,o notify .he appropriate FAA Kepona. Office of the transfer of this Supplement*! 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). (Mumttr mi strut) from (Name of grantor) (Print or type).

(Address of grantor) (A'limktr titd tirttl) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

A 11 < r. o n

## Every issue (1)

- June 14, 1984: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ed/b2/edb2595a8d47c774d6088ef0f41829c37c1a01e83f94fa0b494a8aee85e4ae68)

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