# STC SA3136SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK609 consisting of Century I Autopilot with Optional Omni Tracker.
- Applied: April 15, 1976
- Status date: June 5, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- Certificate PDF: https://openairdocs.org/files/sha256/44/d0/44d074c651e95c626997da891a9f3616d4caa8634f9d6e62ebf6e474b5ceecc5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9268883E55CB6DBA85256CC2000A9451.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3136SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-24-400 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

## 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.

Bepartment of transportation -federal atriation administration Supplemental 'Cpe Certificate <su#mv€4t' SA3136SW-D Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 jA*,/^if deA4Jawjt^>£n&Jrt .lA&*iiiwt>i^ 3 £bta*n*a/ tJivxzuet —— <J 1A15 Piper PA-24-400 Installation of Mitchell Automatic Flight System Model AK609 consisting of Century I Autopilot with Optional Omni Tracker according to Bulletin No. 733, dated 4-14-76 and Master Drawing List No. 87A858, dated 4-14-76.

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S375, dated 5-10-76.

5-10-76 °ther P-viously approved modifications Jc^ 6-05-84, Revision 1 .u>jttwf<'Tt *i *if 4nt •^ff Don P. Watson Manager, Aircraft Certificatifin Division Southwest Region (Title)

This certificate may be transferred in accordance with hAR 21.17.

FAAF«M II 10-2(10-61)

.NSTRUCTIONS: The transfer endorsement bc.ow may be used to notify the appropriate FAA Kepona. Office of the transfer of thb Supplemenul Type Certificate.

The FAA will reissue the certificate in the name of .he traniferee and forward i. .o him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee).

(Address of transferee) — (Mumtxr tnd strttt) I C>t>,Stalt, t*t ZI from (Name of grantor) (Print or type).

(Address of grantor) (Xumlm *nJ tt'ttlj (Cify, SUU.

Signature of grantor (In ink):

## Every issue (1)

- June 5, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/44/d0/44d074c651e95c626997da891a9f3616d4caa8634f9d6e62ebf6e474b5ceecc5)

---
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.
