# STC SA3289SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK737 consisting of Century IIB 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/ea/11/ea11bee6a10a5155c7985d4e648da17f697935dbaf77dea36bd1eda373607899
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FB250F21A242FE4D86257DB30077BDAE.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3289SW-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

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA3289541-8 This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, IX 76067 Part 3 of the CIV11 AIT Regulations.

Original Product - Type Bertificate Number: 3A21 Маке: Cessna Model:

P2ION Description of Type Design Change:

Installation of Mitchell Automatic Flight System Model AK737 consisting of a Century IIB Autopilot with Optional Radio Coupler and Glide Slope Cpupler according to Bulletin No. 82 dated 5-15-78 and Master Drawing List No.

87A1009SW-D dated 5-15-78 (28 Volt System), or later FAA approved revision.

FAA/DAS Approved Supplemental 111ght Manual P/N 68S714 dated 6-5-78 18 required.

Date of Application: 5-16-78 Jule reissued: 3-28-84 Revision 1 Date of Issuance: Date Amended:

6-5-78

EDERAL AVIATION OMINISTRA VON Don P. Watson Southwest Region Manager, Aircraft Certification Division (Signature) (Title) 47 FAA FORM 8110-2 (10-68)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and streel) (Cirj, Stake, and «IP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and sireel ;

Signature of grantor (In ink):

#11 = r. 0~. 1090-262-190

## Every issue (1)

- March 28, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ea/11/ea11bee6a10a5155c7985d4e648da17f697935dbaf77dea36bd1eda373607899)

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