# STC SA3023SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system AK487 cons. of Piper altimatic IIIC autopilot w/opt. command/ automatic electronic pitch trim system, radio coupler and glide slope coupler.
- Applied: September 3, 1974
- Status date: August 1, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO)
- Certificate PDF: https://openairdocs.org/files/sha256/4b/b0/4bb00a70b4a2e7a1f13994e8df9f7d89b8b76c7ba5d3d6a519785bb62acb9c51
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4A6547E9534A797285256CC2000A92D0.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3023SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-34-200T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))

## 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.

Btpartmcnt of transportation —federal atnation administration Supplemental Cgpe Certificate iStf&ji-(aSie>nA:

istuvnsvev' SA3023SW-D Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 ^ 23 Federal Aviation A7SO Piper PA-34-200T njOf :

Installation of Mitchell Automatic Flight System Model AK487 consisting of Piper Altimatic IIIC Autopilot with Optional Command /Automatic Electronic Pitch Trim System, Radio Coupler and Glide Slope Coupler according to Drawing No. 69E1117, Sheet 1 and 2, Revision G, dated 9-27-77 and Master Drawing List No. 87A739, Revision H, dated 9-27-77 or later FAA Approved Revisions of the above data. (14 Volt System) FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S199-2, dated 11-7-77 is required for Piper PA-34-200T, S/N 34-7670371 and below. FAA/DAS Approved Pilot's Operating Handbook Supplement, P/N 68S482-2, dated 11^7-77 is required for Piper Model PA-34-200T, S/N 34-7770001 and Up or later FAA Approved Revisions of the above Supplements. A Placard stating "Conduct trim check prior to Flight (See AFM)" for owners with Airplane Flight Manuals is required. A Placard stating "Conduct trim check prior to flight (See POH)" for owners with Pilot's Operating Handbooks is required, °th« P™*101 approved modifications AttO/i&mttd, /tf .

-u- 10-4-74; 8-8-75: 12-3-76; 3-4-77;' ' * ' _ 4-18-77; H-7-77; 8-1-84, Revision 7 ^_r &tf fiftt+r P. Watson v Manager, Aircraft Certification Division Southwest Region it,th)

This etilifitalr may be transferred in accordance with f-AR 21.47.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Numberto (Name of transferee) (Address of transferee) (Number and street) (City, State, and ZIP code) from (Najne of grantor) (Print or type) (Address of grantor) {Numbar £ street} (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In int):

## Every issue (1)

- August 1, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4b/b0/4bb00a70b4a2e7a1f13994e8df9f7d89b8b76c7ba5d3d6a519785bb62acb9c51)

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