# STC SA09137AC-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-611,
- Applied: December 13, 1995
- Status date: April 11, 2001
- Product: Aircraft, Single-Engine
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- Certificate PDF: https://openairdocs.org/files/sha256/7f/61/7f61556c38c076ea6860f5a5c41dfcbfcccb7c406876b26a8f1f53950c0afdfb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6003941A54E8915F85256CC1007F39DA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09137AC-D

## ADs that name it (0)

None.

## Approved models (6)

- Beechcraft Corporation H35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation J35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation K35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation M35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation N35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation P35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))

## 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: SA09137AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 I at 3 of the Civil shir Kegulations.

Original Product Type Certificate A umter: ЗА15 Make: Beech Model: H35, J35, K35, M35, N35, and P35 Description of Type Design Change:

Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-611, according to Bulletin No. 711, Revision 1, dated 4-11-01 and Master Drawing List No. 92829, Revision A, dated 4-11-01 or later FAA Approved revisions of the above data (14 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: 12-13-95 Date wisued:

Sale of ismance: 12-18-95 Date Amended: 4-11-01 By Direction of the Administrator FEDERAL AVIA TON (Signature) TOMINISTRATIO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

) FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891225, dated 12-18-95 is required or later FAA Approved revisions of the above supplement.

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891225, Revision 1, dated 4-11-01 is required for Beech models H35, J35, K35, M35, N35, and P35 for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

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

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

## Every issue (1)

- April 11, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/7f/61/7f61556c38c076ea6860f5a5c41dfcbfcccb7c406876b26a8f1f53950c0afdfb)

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