# STC SA3268SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK728 consisting of Century IV autopilot or AK728FD consisting of Century IV flight director autopilot with optional remote annunciator.
- Applied: February 1, 1978
- Status date: March 28, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-777](https://openairdocs.org/tcds/A-777)
- Certificate PDF: https://openairdocs.org/files/sha256/71/db/71db111b1abf1559251e284df8f4aa1d1d8f9e763783029e82683dd32942d7e2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DD221FD0CEF50C0F86257DB10059DBED.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3268SW-D

## ADs that name it (0)

None.

## Approved models (5)

- Beechcraft Corporation C35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation D35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation E35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation F35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation G35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))

## 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: SA326854-8 This certificate issued to: Century Flight Systems, Inc.

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

Original Product - Type bertificate Number: A-777 Make:

Beech Model:

C35, D35, E35, F35, G35 Description of Type Design Change:

Installation of Mitchell Automatic Flight System Model AK728 consisting of Century IV Autopilot or AK728FD consisting of a Century IV Flight Director Autopilot with Optional Remote Annunciator according to Bulletin No. 863, Rev. 1 dated 3-30-78 and Master Drawing List No. 87A984 Rev. A dated 3-30-78 (14 Volt System), or later FAA approved revision.

Limitations and Conditions: P1lot's Operating Handbook & FAA/DAS Approved Airplane P118ht Manual Supplement P/N 685651 dated 3-3-78 1s required for C35, D35, E35, F35, G35 aircraft owners with Pilot's Operating Handbook & FAA Approved Airplane Flight Manual; FAA/DAS Approved Airplane Flight Manual Supplement P/N 68S679 dated 3-3-78 18 required for C35, D35, E35, F35, G35 aircraft owners with airplane flight manual.

Placard P/N 13A660 is required for airplane flight nanual aircraft owners.

tbmpordь/NdЗАб60țhissmagyitedfaF AiER sther previously approved modifications

Date of Application: 2-1-78 Jule wisseed: 5-23-78; 3-28-84 Rev1810n 2 Date of Issuance: Date Amended:

3-3-78 FEDERAL AVIATION By digestion of the darinistraler Don P. Watson (Signature ) DHINISTRATIOR Manager, Aircraft Certification Division Southwest Region (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) (City, State, and RIP code ) from (Name of grantor) (Print or sype) (Address of grantor) ( Number and sireel ;

(City, Stale, and ZIP code, Extent of Authority (if licensing agreement):.

Signature of grantor (In ink):

+.1 = r. 0n. 1898-222-080

## Every issue (1)

- March 28, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/71/db/71db111b1abf1559251e284df8f4aa1d1d8f9e763783029e82683dd32942d7e2)

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