# STC SA3022SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK517 consisting of Autocontrol IIIB autopilot with optional radio coupler.
- Applied: August 21, 1974
- Status date: June 20, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10)
- Certificate PDF: https://openairdocs.org/files/sha256/6b/86/6b8681097b1bc12753313a40e58a12668054e45bbcd5054dccaedcea9626bf45
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0F5A2E015B04195E85256CC2000A92CD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3022SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- Piper Aircraft Inc. PA-E23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))

## 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.

I .1 u'ltaiita&enA.

Btpartmem of transportation —.federal Stoiation administration Supplemental ICgpe Certificate SA3022SW-D Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 Civil Air 1A10 Piper PA-23-250, PA-E23-250 ^£'!*&cr*iJh&&n' -tfijry/it'^J'jQijy&i ViAa.na*' - Installation of Mitchell Automatic Flight System Model AK517 consisting of Auto- Control IIIB Autopilot with Optional Radio Coupler according to Bulletin No. 640, Revision (1), dated 4-15-75 and Master Drawing List No. 87A735, Revision A, dated 4-15-75.

i Eligible on Piper Models PA-23-250, S/N 27-3944 and Up and PA-E23-250, S/N 27-3944 through 27-7554181 and PA-23-250, S/N 27-3944 and Up and PA-E23-250, S/N 27-3944 through 27-7554181 when modified in accordance with STC SA909WE, See Continuation Sheet, Page 2, a part of this STC 8-21-74 8-26-74 ^Proved modifications <jj id &*•

• ju'jf-r .,J: 4-22-75; 8-8-75, 6-20-84, Revision 3 tf &if "'f Don P. Watson Manager, Aircraft Certification Division Southwest Region ,

17.

flnittd£tttiiafantrica Bepartment of ^transportation—JNtral aoiation administration Supplemental Hugpe Certificate(Continuation $hctt) SA3Q22SW-D, Revision 3, dated 6-30^-84 Limitations and Conditions continued:

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S193-2, dated 7-30-75 is required for Piper Models PA-23-250 and PA-E23-250, S/N 27-3944 through 27-7554181 and both models when modified in accordance with STC SA909WE or FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S236, dated 4-22-75, revised 7-30-75 is required for Piper Models PA-23-250, S/N 27-7654001 and Up and when modified in accordance with STC SA909We.

FAA FORM ano-z-i (io-6B) T/dt (irtt/Kelt may tt traitsfmtd in accordant! with FAR 21.47.

**PAGE 2 OF 2 PASES**

The FAA mil reissue tha certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) and street) (City, State, and ZIP cods) from (Name of grantor)(Print or type) (Address of grantor) (Number s street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink)

## Every issue (1)

- June 20, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/6b/86/6b8681097b1bc12753313a40e58a12668054e45bbcd5054dccaedcea9626bf45)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.