# STC SA09358AC-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 65 Two Axis Automatic Flight Guidance System, Model ST-593.
- Applied: August 6, 2008
- Status date: April 16, 1998
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A5SW](https://openairdocs.org/tcds/A5SW)
- Certificate PDF: https://openairdocs.org/files/sha256/cb/68/cb6855a7465bab94ae45c21f38dedbe813f5b4003f420251855174130a8513d2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4B6D7554F1C4BBB3862574BF007D6E09.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09358AC-D

## ADs that name it (0)

None.

## Approved models (1)

- Fairchild Aircraft Corporation SA227-AT ([TCDS A5SW](https://openairdocs.org/tcds/A5SW))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

This Certificate issued to

Part 3 of the Civil Air Regulations.

Installation of S-TEC System 65 Two Axis Automatic Flight Guidance System, Model ST-593, according to Master Drawing List No. 92800, Revision M, date d 8-06-08 with Optional Flight Director/Steering Horizon or later FAA Approved revisions of the above data (28 Volt System).

1. Only eligible When Equipped with Trim Actuator P/N DL5040M2-4; P/N DL5040M5, Mod. 2;

or P/N 27-19008-7.

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

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

S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 A5SW Fairchild Aircraft Make :

Model : SA227-AT

Date of application : 4-14-98 Date of issuance : 4-16-98 Date reissued :

Date amended : 8-06-08

(Signature)

James W. Smisek DAS administrator, DAS-100.2 (Title)

FAA Form 8110-2-1(10-69) Page 2 of 3

Number SA09358AC-D Amended 8-06-08

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 and street)

(City, State, and ZIP code)

Signature of grantor (In ink):

FAA Form 8110-2-1(10-69) Page 3 of 3

Number SA09358AC-D Amended 8-06-08

Limitations and Conditions (con’t.)

2. Pilot’s Operating Handbook and FAA/DAS Approve d Airplane Flight Manual Supplement, P/N 891715, dated 4-16-98 is required for Fairchild Aircraft M odel SA227-AT When Equipped With Trim Actuator P/N DL5040M2-4; P/N DL5040M5, Mod. 2; or P/N 27- 19008-1 or later FAA Approved revisions of the above supplement.

3. Pilot’s Operating Handbook and FAA/DAS Approved Airplane Flight Manual Supplement, P/N 891715, Rev. 1, dated 8-06-08 is required for Fairchild Ai rcraft Model SA227-AT When Equipped With Trim Actuator P/N DL5040M2-4; P/N DL5040M5, Mod. 2; or P/N 27-19008-7 or later FAA Approved revisions of the above supplement.

4. Compatibility of this modification with other prev iously approved modifications must be determined by the installer.

## Every issue (1)

- April 16, 1998: Issued, Current. [certificate](https://openairdocs.org/files/sha256/cb/68/cb6855a7465bab94ae45c21f38dedbe813f5b4003f420251855174130a8513d2)

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