STC SA680SW

Supplemental type certificate · Century Flight Systems Inc

Holder
Century Flight Systems Inc · United States
Status
Current · Reissued
Status date
June 25, 1984
Applied
July 12, 1966
Product
Aircraft · Small Multi-Engine
Certification basis
Part 21
Data sheet
TCDS6A1

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 6, 2025.

What it approves

Installation of Mitchell automatic flight system model AK221 consisting of Century III autopilot with optional automatic pitch trim, radio coupler, and glide slope coupler.

What the certificate says

From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.

^Department of transportation —federal aoiation administration Supplemental 'Cgpe Certificate <yi(#m<V€Vt' SA680SW Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 3 Je, Civil Air 6A1 Aero Commander 500A, 50QB, 500S, and 50QU Installation of Mitchell Automatic Flight System Model AK221 consisting of Century III Autopilot with optional Automatic Pitch Trim, Radio Coupler and Glide Slope Coupler per Bulletin No. 329, Revision 4, dated 8-5-70;

and optional Mitchell Radio Coupler 1C388-3 per Bulletin No. 611, dated 4-16-74 and Master Drawing List No. 87A708, Revision A, dated 4-16-74.

The following FAA Approved Airplane Flight Manual Supplements are required;

1. Supplements date 8-18-66 for Aero Commander Model 500A, 500B, or 500U.

2. Supplements dated 7-31-68 for Aero Commander Model 500S.

3. Supplement dated 4-16-74 for Radio Coupler, °ther Piously -PProved modifications July 12, 1966 AugUSt 18, 1966 /u< ^ 7-31-68; 9-24-70; 4-16-74;

6-25-84, Revision 4 d Jn* •^' . Watson Manager, Aircraft Certification' Division4 /-. * i . "*Sv '^*'*JL * • ' * " Southwest -Region (Title)

47.

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

(Address of transferee) I ,Y«mt<r *nd ttrttl) (City.State, *nJ 3 from (Nome of grantor) (Print or type) (Address of grantor) (\umtft tn4 itrtetj (Citf, Slflt.

Signature of grantor (In ink):

ADs that name this STC · 1

An AD can apply because an STC is installed, or mention one in its text.

Approved models · 4

MakeModelData sheet
Twin Commander Aircraft LLC500-A6A1
Twin Commander Aircraft LLC500-B6A1
Twin Commander Aircraft LLC500-S6A1
Twin Commander Aircraft LLC500-U6A1