# STC SA3099SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK587 consisting of Century I Autopilot with Optional Omni Tracker.
- Applied: January 6, 1976
- Status date: June 20, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10)
- Certificate PDF: https://openairdocs.org/files/sha256/bf/54/bf54baf3afc28a33e6c9782486108af2d7410a7120d872371a73b1056241da7d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8AECCFEA2D2532CA85256CC2000A93CA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3099SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-23 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- Piper Aircraft Inc. PA-23-160 ([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.

Department of transportation -federal 2ttriation administration upplementalCertificate iSlt&itta&Cf €Jr4aina/ iJ* SA3099SW-D Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 JSwtyfi&deAjjgmfer-JA&fidfottw -> Air 1A10 Piper PA-23, PA-23-160 a^ :

Installation of Mitchell Automatic Flight System Model AK587 consisting of Century I Autopilot with Optional Omni Tracker according to Bulletin No. 711, Revision 1, dated 5-23-77 and Master Drawing List No. 87A833, Revision A, dated 5-23-77.

Also eligible on Piper Models PA-23 and PA-23-160 when modified in accordance with STC's SA499SW and **SA636SW and the same models if modified by any of the following STC's installed in any combination: SA362SW, SAA97SW, SA671SW, SA899SW and SA1294SW.

**STC's SA371SW and SA463SW are included in STC SA636.SW.

See Continuation Sheet, Page 2, a part of this STC.

modifications ^^4^ « '<t>4n4^ . 6-9-77; 6-20-84, Revision 2 Don P. Watson Manager, Aircraft Certification Division Southwest Region (Title)

This certificate may be transferred in accordance with FAR 21.17.

FAAFot* IB 110-2(10-68)

tlnftd Start* of anerica Bepartmmt of ICransportation— federal atiiation administration Supplemental ICgpe Certificater (Continuation &hett) -D, dated 6-20-84, Rev. 2 Limitations and Conditions (Continued):

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S328-1, dated 6-9-77 is required for Piper Models PA-23 and PA-23-160 when modified in accordance with STC SA499SW and *SA636SW and the above models if modified by any of the following STC's in any combination:

STC's SA362SW, SA497SW, SA671SW, SA899SW and SA1294SW *STC 's SA371SW and SA463SW are included in STC SA636SW FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S561, dated 6-9-77 is required for Piper Models PA-23 and PA-23-160.

FAA FORM sito-2-1 (io-6») TUt urtificatt my be tiansjtnid in accordant with FAR 21.47.

.NJTTRUCTIONS: The transfer endorsement be.ow may be u*d to notify the appropriate FAA Regional Office of the transfer of this Supplemental Type Certificate.

The FAA will reissue the 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) ..

from (Name of grantor) (Print or type).

(Address of grantor) (Xumker tnJ ttrul j 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/bf/54/bf54baf3afc28a33e6c9782486108af2d7410a7120d872371a73b1056241da7d)

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