# STC SA09142AC-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-626,
- Applied: March 13, 1996
- Status date: September 24, 2001
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 5A4](https://openairdocs.org/tcds/5A4)
- Certificate PDF: https://openairdocs.org/files/sha256/9e/83/9e83f45d4dece48726078f2abd4c3c0cbd028177f27140a3af2b388aa262505f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/41C3CC20D02A976785256CC1007F39E0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09142AC-D

## ADs that name it (0)

None.

## Approved models (10)

- Beechcraft Corporation D50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50A ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50B ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50C ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50E ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation E50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation F50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation G50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation H50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation J50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))

## 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: SA09142AC-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 Regulations.

Original Product I ype berlifcate Number: 5A4 Make: Beech Model: D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, Description of Type Design Change: and J50 Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-626, according to Bulletin No. 726, Revision 2, dated 9-24-01 and Master Drawing List No. 92913, Revision B.

dated 9-24-01 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.

I ederal t viation Administration.

Date of Application: 3-13-96 Date Reissued:

Date of Issuance: 3-19-96 Date Amended: 9-24-01 By Direction of the Administrator FEDERAL AVIATION Marial n (Signature) TOMINSTRATOR Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title) 000, or imprisonment not exceeding 1 years, or both.

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):

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09142 AC-D Limitations and Conditions: (con't.)

1. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891238, dated 3-19-96 is required for Beech Models D50, D50A, D50B, D50C, and D50E or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891239, dated 3-19-96 is required for Beech Models E50, F50, G50, H50, and J50 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891238, Revision 1, dated 9-24-01 is required for Beech models D50, D50A, D50B, D50C, and D5OE for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891239, Revision 1, dated 9-24-01 is required for Beech models E50, F50, G50, H50, and J50 for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

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

47.

## Every issue (1)

- September 24, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/9e/83/9e83f45d4dece48726078f2abd4c3c0cbd028177f27140a3af2b388aa262505f)

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