# STC SA3290SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK738 consisting of Century III autopilot with optional radio coupler and glide slope coupler.
- Applied: May 16, 1978
- Status date: March 28, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/45/92/45925d2af563823a48cf4e86d0c7a3ff449765de1d2852e5d6f62dca06b9b72a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/65D9C190AF7ACF2386257DB30077F4F0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3290SW-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.

Bcpartment of transportation federal atnation administration Supplemental t^pe Certificate SA3290SW-D Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 jJn&.Ju^wde&ijam^wJifofe Civil Air fflwJa^nMd \-faocuic6 —— t 3A21 Cessna Installation of Mltchell Automatic Flight System Model AK738 consisting of a Century III Autopilot with Optional Radio Coupler and Glide Slope Coupler according to Bulletin No. 873 dated 5-15-78 and Master Drawing List No. 87A1010 dated 5-15-78 (28 Volt System), or later FAA approved revision.

Supplemental Flight Manual P/N 68S715 dated 5-30-78 is required.

Placard P/N 13A660-2 is required.

°ther Previously approved modifications -u/ 3-28~84 Revision 1 — ' && sit/isfts/ftr - Don P. Watson Manager, Aircraft Certification Division Southwest Region (Title)

FAA FotM 8110-2 (10-68)

INSTRUCTIONS: The transferendor^men, below may be u~d ,o noufy ,he appropriate FAA Regional Office of the transfer of thu Supplemental Type Certificate.

The FAA will reiisue the certifkatc 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) _ from (Name of grantor) (Print or type).

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

Signature of grantor (In ink):

## Every issue (1)

- March 28, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/45/92/45925d2af563823a48cf4e86d0c7a3ff449765de1d2852e5d6f62dca06b9b72a)

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