# STC SA1717SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system Model AK431 consisting of autocontrol III or IIIB with optional radio coupler.
- Applied: July 10, 1973
- Status date: July 16, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A13](https://openairdocs.org/tcds/2A13)
- Certificate PDF: https://openairdocs.org/files/sha256/57/22/5722cfe830ffee9918a2273b66359c8fb8206c949ad98d961706a085b85b385b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A10A7C7DF1CA029685256CC10083CF52.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1717SW

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-28-151 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))

## 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.

Bepartmtnt of ^transportation —jftdcral 3toiation administration Supplemental 'Cgpe Certificate iSleatf/ei&fnA SA1717SW Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 aju/pemf&t —— •SAuSw'favi'iMtGafaJlttrn&er' 2A13 Piper PA-28-151 Civil Air Installation of Mitchell Automatic Flight System Model AK431 consisting of Autocontrol III or IIIB with optional Radio Coupler according to Bulletin No. 553 Revision (1) dated 4-3-74 and Master Drawing List 87A668, Revision A dated 4-3-74.

FAA Approved Airplane Flight Manual Supplement dated 8-15-73 for AutoControl III;

or dated 6-6-74 for AutoControl IIIB is required.

modifications

a. - July 10, 1973 AugUSt 15, 1973 6-6-74; 7-16-84, Revision 2 & n rttf rtftff/ :

Don P. Watson Manager, Aircraft Certification Division Sguthwest Region f Title)

INSTRUCTIONS: The (ransfer endorsement below may be used 10 notify [he appropriate FAA Regional Office of ihe transfer of this Supplemental Type Certificate.

The FAA will reissue the ceruhcatr in (he 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) JitintHT and jtrtit) from (Name of grantor) (Print or type).

(Address of grantor) i and ttftft) I Ci(y, Slatt, anil £IP null I Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC68-IS36**

## Every issue (1)

- July 16, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/57/22/5722cfe830ffee9918a2273b66359c8fb8206c949ad98d961706a085b85b385b)

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