# STC SA09212AC-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-676-20/30.
- Applied: May 9, 1997
- Status date: June 13, 1997
- Product: Aircraft, Single-Engine
- Certification basis: Part 11, Part 21
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- Certificate PDF: https://openairdocs.org/files/sha256/9e/62/9e6227371afbb7066c885ad84f1a799b1f25ebb272b50ad25fcbee2c48977d0f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/314D44D6C87E2D4485256CC1007F3A19.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA09212AC-D

## ADs that name it (0)

None.

## Approved models (3)

- Mooney International Corporation M20F ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney International Corporation M20G ([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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09212AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 I art 3 of the bird it i Regulations.

Original Product I ype berlifcate Number: 2A3 Make: Mooney Model: M20F, M20G, and M20J Description of Type Design Change:

Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-676-20/30, according to Bulletin No. 776, dated 5-08-97 and Master Drawing List No. 92990, dated 5-08-97 or later FAA Approved revisions of the above data (14 Volt System).

1. FAA/DAS Approved Supplemental Flight Manual, P/N 891370, dated 5-15-97 is required for Mooney Models M20F and M20G for S-TEC System 20 or later FAA Approved revisions of the above supplement.

(See Continuation Sheet, Page 2, a part of this STC.) fish has or aped shade

Date of Application: 5-09-97 Date Reissued:

Date of Issuance: 5-15-97 Date Amended: 6-13-97, Revision 1 By Direction of the Administrator FEDERAL AVIATION Wich Home TOMINISTRATIOS DAS Staff Coordinator, DAS 5 SW William J. Thomas (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09212AC-D, Revision 1 Limitations and Conditions: (con't.)

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891371, dated 5-15-97 is required for Mooney Model M20J for System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891372, dated 5-17-97 is required for Mooney Models M20F and M20G for S-TEC System 30 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891373, dated 5-15-97 is required for Mooney Model M20J for System 30 or later FAA Approved revisions of the above supplement.

5. Compatibility of this modification with other previously approved modifications must be determined by the installer.

FAA Form 8110-2-1(10-69) Page 2 of 2

The FAR 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) (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 13, 1997: Amended, Current. [certificate](https://openairdocs.org/files/sha256/9e/62/9e6227371afbb7066c885ad84f1a799b1f25ebb272b50ad25fcbee2c48977d0f)

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