# STC SA09342AC-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-773-20/30.
- Applied: February 18, 1998
- Status date: February 20, 1998
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- Certificate PDF: https://openairdocs.org/files/sha256/ac/09/ac09327cd573771a929d63dc5af08118182bda7b48d74f18a244af24c9878015
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5E4D023298BD430085256CC1007F3A9F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09342AC-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: SA09342AC-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 Civil A i Regulations.

Original Product . I ype Certifcate Number: ЗА15 Make: Beech Model: H35, J35, K35, M35, N35, and P3S Description of Type Design Change:

Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-773-20/30, according to Bulletin No. 873, dated 2-16-98 and Master Drawing List No. 921076, dated 2-16-98 or later FAA Approved revisions of the above data (14 Volt System).

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891670, dated 2-20-98 is required for Beech Models H35, J35, K35, M35, N35, and P35 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.

revched or a termination date is otherise established by the Administrates of the Federal ¾ vation dministration.

Date of Application: 2-18-98 Date Reissued:

Date of Issuance: 2-20-98 Date Amended:

By Direction of the Administrator FEDERAL AVIATION Wiin Homer (Signature) TOMNISTRATO William J. Thomas DAS Staff Coordinator, DAS 5 SW (Title)

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09342AC-D Limitations and Conditions: (con't.)

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891671, dated 2-20-98 is required for Beech Models H35, J35, K35, M35, N35, and P35 for S-TEC System 30 or later FAA Approved revisions of the above supplement.

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

FAA Porn 8110-2-1(T0-69) 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)

- February 20, 1998: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ac/09/ac09327cd573771a929d63dc5af08118182bda7b48d74f18a244af24c9878015)

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