# STC SA3186SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK658 consisting of Century III autopilot with optional radio coupler and glide slope coupler.
- Applied: January 27, 1977
- Status date: June 18, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-734](https://openairdocs.org/tcds/A-734)
- Certificate PDF: https://openairdocs.org/files/sha256/da/f1/daf1972e18a062c0494ada170b68a1eda6edb2e9209bc97fbe3bad6c7a8827a9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/57E07C4E3722868685256CC2000A94F6.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3186SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Gulfstream American Corporation G-44 ([TCDS A-734](https://openairdocs.org/tcds/A-734))
- Gulfstream American Corporation G-44A ([TCDS A-734](https://openairdocs.org/tcds/A-734))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA318654-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, TX 76067 Part 4a of the CIVI1 Air Regulations:

Original Product - Type Certificate Number: A-734 Make: Grumman Model: G-44 (OA-14; J4F-2) and G-44A Description of Type Design Change:

Installation of Mitchell Automatic Flight System Model AK658 consisting of a Century Ill Autopilot with Optional Radio Coupler and Glide Slope Coupler per Bulletin No. 787, Revision 3, dated 7-15-81 and Master Drawing List No. 87A904, Revision C, dated 7-15-81 (14 Volt System) and/or later FAA Approved revisions of the above data.

Limitations and Conditions: Also eligible on the above models when equipped with Type Certificate approved Items 108(A), (B), or (C) and/or STC's SA4-928 (Retractable Tip Floats), SA835SO (290 H.P. Lycoming Engines), SA4-958 (Increased Fuel Capacity), SA4-2 (300 H.P. Lycoming Engines), and SA81SO (260 H.P. Continental 10470-M Engines with Cessna 310 Nacelles).

See Continuation Sheet, Part 2, a part of this STC r sf the Federal Aviation Administration .

Date of Application: 1-27-77 Suk rissued: 7-11-77; 6-16-78; 7-27-81;

6-18-84, Revision 4 Date of Issuance: 2-23-77 Sale umended:

FEDERA AVIATION By Direction of the Administrator Don P. Watson ( Signature ) TOMIN Manager, Aircraft Certificatión Division Southwest Region (Title)

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA3186SN-D FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S501-1, Revision 2, dated 7-20-81 is required and/or later FAA Approved revísions of the above supplement.

Placard, P/N 13A660 is required.

47.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (229175 pro sequens) from (Name of grantor) (Print or type) (Address of grantor) (Number and sireel;

Signature of grantor (In ink):

+ 11 C r. 0 ~. 1090-282-100

## Every issue (1)

- June 18, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/da/f1/daf1972e18a062c0494ada170b68a1eda6edb2e9209bc97fbe3bad6c7a8827a9)

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