# STC SA09510AC-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 20/30 single and two-axis automatic flight guidance systems, model ST-889-20/30.
- Applied: June 20, 2001
- Status date: June 22, 2001
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A1CE](https://openairdocs.org/tcds/A1CE)
- Certificate PDF: https://openairdocs.org/files/sha256/5c/e4/5ce425b4fd941404aafec12bf704dbd342631d4abfe401e09955ad8184fe2dca
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9F880B71A90117CA85256CC1007F3B31.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09510AC-D

## ADs that name it (0)

None.

## Approved models (2)

- Beechcraft Corporation C23 ([TCDS A1CE](https://openairdocs.org/tcds/A1CE))
- Beechcraft Corporation C24R ([TCDS A1CE](https://openairdocs.org/tcds/A1CE))

## 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: SA09510 AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Part 3 of the Civil Air Rogulutions.

Original Product I ype Certificate Number: AICE Make: Beech Model: C23 and C24R Description of Type Design Change:

Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model S1-889-20/30, according to Bulletin No. 989, dated 6-19-01 and Master Drawing List No. 921201, dated 6-19-01 or later FAA Approved revisions of the above data (28 Volt System).

(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.

Date of Application: 6-20-01 Date Reissued:

Dale of ismance: 6-22-01 Date Amended:

By Direction of the Administrator FEDERAL AVIATION (Signature) TOMINSTRATIO Michael Keiran DAS Staff Coordinator, DAS 5 SW (Title)

PAA Form 8110-2 (10-68) Page 1 of

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09510AC-D Limitations and Conditions: (con't.)

FAA/DAS Approved Supplemental Flight Manual, P/N 892088, dated 6-22-01 is required for Beech model C23 for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 892089, dated 6-22-01 is required for Beech model C24R for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 892090, dated 6-22-01 is required for Beech model C23 for S-TEC System 30 or later FAA Approved revisions of the above supplement.

4. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 892091, dated 6-22-01 is required for Beech model C24R for S-TEC 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

INSTRUCTIONS. The transfer endorsement below may be used to notify the appropriate FAA Pegional Office of the transfer of this Supplemental Type Certificate.

The FAA 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 and street.)

(City, Stale, and ZIP code ) Extent of Authority (if licensing agreement): - Date of Transfer:

Signature of grantor (In ink):

## Every issue (1)

- June 22, 2001: Issued, Current. [certificate](https://openairdocs.org/files/sha256/5c/e4/5ce425b4fd941404aafec12bf704dbd342631d4abfe401e09955ad8184fe2dca)

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