# STC SA09360AC-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-810-20/30
- Applied: April 29, 1998
- Status date: May 18, 1999
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A23](https://openairdocs.org/tcds/3A23)
- Certificate PDF: https://openairdocs.org/files/sha256/de/01/de0161639b77c45c7f0735fc98788d5b0445a6c1c9e18978a69a29d5e35923ce
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/763334C96766CF7E86256D7B00595D21.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09360AC-D

## ADs that name it (0)

None.

## Approved models (4)

- Maule Aerospace Technology Inc. MT-7-235 ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. MX-7-180A ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. MX-7-180B ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. MX-7-180C ([TCDS 3A23](https://openairdocs.org/tcds/3A23))

## 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: SA09360AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Certifies that the change in the type design for the following freduct with the limitations and conditions therefor as specifed hercen meets the airothiness requiements of Last 3 of the Civil di Kegulations.

Original Product I ype Certifcate A umber: 3A23 Make: Maule Model: MX-7-180A, MX-7-180B, MX-7-180C, and MT-7-235 Description of Type Design Change:

Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-820-20/30, according to Bulletin No. 920, Revision 1, dated 5-13-99 and Master Drawing List No.

921090, Revision A, dated 5-13-99 or later FAA Approved revisions of the above data (28 Volt System).

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891720S, dated 5-01-98 is required for Maule Model MX-7-180C for S-TEC System 20 or later FAA Approved revisions of the above supplement.

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

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Federal I viation Administration.

Date of Application: 4-29-98 Date Reissued:

Date of Issuance: 5-01-98 Date Amended: 5-18-99, Revision 1 By Direction of the Administrator FEDERAL AVIATION (Signature) TOMINISTRATO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

FAA Form B110-2(10-68) Page 1 of 2

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09360AC-D, Revision 1 Limitations and Conditions: (con't.)

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891721S, dated 5-01-98 is required for Maule Model MT-7-235 for S-TEC System 20 or later FAA Approved revisions of the above supplement.

5917225, died 501 8 is required for Maned X 1C for SeE Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891723S, dated 5-01-98 is required for Maule Model MT-7-235 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 891720S, Revision 1, dated 5-18-99 is required for Maule models MX-7-180A, MX-7-180B, and MX-7-180C for S-TEC System 20 or later FAA Approved revisions of the above supplement.

6. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891722S, Revision 1, dated 5-18-99 is required for Maule models MX-7-180A, MX-7-180B, and MX-7-180C for S-TEC System 30 or later FAA Approved revisions of the above supplement.

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

FAA Form 9110-2-1/10-69) Page 2 of 2

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)

- May 18, 1999: Amended, Current. [certificate](https://openairdocs.org/files/sha256/de/01/de0161639b77c45c7f0735fc98788d5b0445a6c1c9e18978a69a29d5e35923ce)

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