# STC SA3151SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK429 consisting of Century IV
Autopilot or AK429/FD consisting of Century IV Flight Director Autopilot with Optional
Remote Annunciator
- Applied: July 13, 1976
- Status date: June 6, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A12CE](https://openairdocs.org/tcds/A12CE)
- Certificate PDF: https://openairdocs.org/files/sha256/fe/b0/feb08075c4417decb30ac5ce591c10f348729bac75f088a8a1a5968d57ce5190
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E874BCDD08BA026285256CC2000A9484.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3151SW-D

## ADs that name it (0)

None.

## Approved models (3)

- Beechcraft Corporation 60 ([TCDS A12CE](https://openairdocs.org/tcds/A12CE))
- Beechcraft Corporation A60 ([TCDS A12CE](https://openairdocs.org/tcds/A12CE))
- Beechcraft Corporation B60 ([TCDS A12CE](https://openairdocs.org/tcds/A12CE))

## 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 SA3151SW-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, TX 76067 Pure 23 of the Federal Aviation Regulations:

Original Product - Type Gertificale Number: A12CE Make: Beech Model: 60, A60, B60 Description of Type Design Change:

Installation of Mitchell Automatic Flight System Model AK429 consisting of Century IV Autopilot or AK429/FD consisting of Century IV Flight Director Autopilot with Optional Remote Annunciator according to Bulletin No. 551, Revision 5, dated 7-2-76 and Master Drawing List No. 87A674, Revision E, dated 7-2-76.

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S397 dated 7-26-76 is required.

Placard, P/N 13A660 is required.

The can feat at De auge mine did act in he as rape rendered, suspended, nevoked, or a termination date is shorwise es labdished by the Adminis braler f the Federal Aviation Administration .

Date of Application: 7-13-76 Jule missued: 6-6-84, Revision 1 Date of Issuance: 7-26-76 Jake unended:

FEDERAL AVIATION By Direction of the Administrator Don P. Watson (Signature ) TOMINIST RATOR 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) (230185 pree enquire ") from (Name of grantor) (Print or type).

(Address of grantor) ! pasts pur sequent) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):.

+11=r. 01.1000-282-180

## Every issue (1)

- June 6, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/fe/b0/feb08075c4417decb30ac5ce591c10f348729bac75f088a8a1a5968d57ce5190)

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