# STC SA3285SW-D

- Type: Supplemental type certificate
- Status: Historical, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK731 consisting of Century IIB autopilot with optional radio coupler.
- Applied: April 19, 1978
- Status date: March 28, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A17](https://openairdocs.org/tcds/3A17)
- Certificate PDF: https://openairdocs.org/files/sha256/91/04/910435d0ef10d70fab760f2b5b613fcb270c67e8a1fad0061c592605cd9ecf73
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/40774434A39FE38786257DB30077126A.0001
- DRS record last changed: December 19, 2014
- Page: https://openairdocs.org/stc/SA3285SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company R172K ([TCDS 3A17](https://openairdocs.org/tcds/3A17))

## 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.

Btpartment of transportation —federal aoiation administration Supplemental ¥gpe Certificate SAJ285SW-D ^sleau/adurnAs.

Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 wJA^Jufi&de&iaMjtfw.& CXVli Air.<0i^ ~ Cessna R172K —£teA>cnen'4]p/yi6>—i^^&gtsn' ~j&nae'.' Installation^of Mitdhell Automatic Flight System Model AK731 consisting of a Century IIB Autopilot with Optional Radio Coupler according to Bulletin No. 886 dated 4-18-78 and Master Drawing List No. 87A995 dated 4-18-78 (28 Volt System), or later FAA approved revision.

FAA/DAS Approved Supplemental Flight Manual P/N 68S703 dated 5-11-73 is required.

^Proved modifications ^' < J&&' t& 4 4-19-78 3-28-84 Revision 1 _s £* Don P. WatSOn (Signature) Manager, Aircraft Certification Division Southwest Region (Title)

47.

FAA FO*M 8110-2(10-68)

INSTRUCTIONS: The transfer endorsemen, below may be used .0 notify .he appropriate FAA Regional Office of the transfer of this Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee and forward it 10 him.

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

(Address of transferee). (Mumttr *nd strut) (Cit>.

from (Name of grantor) (Print or type).

(Address of grantor) (Cify. SUU, Extent of Authority (if licensing agreement): _ Date of Transfer:.

Signature of grantor (In ink):

## Every issue (1)

- March 28, 1984: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/91/04/910435d0ef10d70fab760f2b5b613fcb270c67e8a1fad0061c592605cd9ecf73)

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