# STC SA3047SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK523 consisting of Century III autopilot with optional radio coupler and glide slope coupler
- Applied: March 11, 1975
- Status date: June 22, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- Certificate PDF: https://openairdocs.org/files/sha256/bc/25/bc257a1da9425c4706da3084c465773c09afd240f5f6b117c60b13544f69c76d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4E1AA6724365CB7185256CC2000A9320.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3047SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Mooney International Corporation M20F ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney International Corporation M20J ([TCDS 2A3](https://openairdocs.org/tcds/2A3))

## 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: SA304754-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, TX 76067 Part 3 of the CIVII AIT Regulalions:

Original Product -Type bertificale Number: 2A3 Make: Mooney Model: M20F, M2OJ Description of Type Design Change:

Installation of Mitchell Automatic Flight System Model AK523 consisting of a Century III Autopilot with Optional Radio Coupler and Glide Slope Coupler according to Bulletin No. 514, Revision 9, dated 10-6-77 and Master Drawing List No. 87A774, Revision 1, dated 106-77 Limitations and Conditions: FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S228, dated 3-26-75 is required for Mooney Model M20F owners having an Airplane Flight Manual.

FAA/DAS Approved Pilot's Operating Handbook Supplement, P/N 685423-1, dated 4-15-77 1s required for Mooney Model M20J owners having a Pilot's Operating Handbook. Placard, P/N 13A660 1s required for owners having an Airplane Flight Manual and Placard P/N 13A660-1 vendered, suspended, revoked, or a termination dale is sherwise es labdished by the Administraler of the Federal Aviation Administration .

Date of Application: 3-11-75 Juke measured: 12-2-75; 10-6-76; 11-5-76; 3-11-77; 4-15-77; 10-13-77; 6-22-84, Date of Issuance: 3-26-75 Date Amended: Revision 7 FEDERAL AVIATION By Direction of the Administrator Don P. Watson (Signature ) OMINISTRAT Manager, Aircraft Certification Division Southwest Region (Title) 47 FAA FORM 8110-2 (1D-6B)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number & street) (City, State, and ZIP code) Extent of Authority (if licensing agreement) :

Signature of grantor (In ink) :

## Every issue (1)

- June 22, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/bc/25/bc257a1da9425c4706da3084c465773c09afd240f5f6b117c60b13544f69c76d)

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