# STC SA09130AC-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-598,
- Applied: November 29, 1995
- Status date: October 22, 2001
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 7A15](https://openairdocs.org/tcds/7A15)
- Certificate PDF: https://openairdocs.org/files/sha256/19/b9/19b998c2914461aed8c3b5c1ad2eddddd365728ada91e87d1dccc945841038c7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C2DEB3E28F4B445185256CC1007F39D0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09130AC-D

## ADs that name it (0)

None.

## Approved models (5)

- Pilatus Aircraft Limited PC-6/B-H2 ([TCDS 7A15](https://openairdocs.org/tcds/7A15))
- Pilatus Aircraft Limited PC-6/B1-H2 ([TCDS 7A15](https://openairdocs.org/tcds/7A15))
- Pilatus Aircraft Limited PC-6/B2-H2 ([TCDS 7A15](https://openairdocs.org/tcds/7A15))
- Pilatus Aircraft Limited PC-6/B2-H4 ([TCDS 7A15](https://openairdocs.org/tcds/7A15))
- Pilatus Aircraft Limited PC-6/C-H2 ([TCDS 7A15](https://openairdocs.org/tcds/7A15))

## 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: SA09130 AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 I ast I of the Civil L is Regulations.

Original Product I ype Certificate A unter: 7A15 Make: Pilatus Model: PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, and PC-6/C-H2 Description of Type Design Change:

Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-598, according to Bulletin No. 698, Revision 2, dated 10-22-01 and Master Drawing List No. 92824, Revision B, dated 10-22-01 with Yaw Trim System according to Bulletin No. 699, Revision 2, dated 8-16-99 and Master Drawing List No. 92826, Revision B, dated 8-16-99 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: 11-29-95 Date mismed:

Date of Issuance: 1-16-96 Date Amended: 10-16-96, 12-10-96, 10-22-01 By Direction of the Administrator FEDERAL B AVA TON (Signature) TOMINSTRATO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

FAA Form 8110-2 (10-681 Make: 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 codel 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: SA09130AC-D Limitations and Conditions: (con't.)

1. Also eligible on Model PC-6/B2-H4 When Modified With Underwing Fuel Tanks.

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891229S, dated 1-16-96 is required for Pilatus Model PC-6/B2-H4 And The Above Model When Modified With Underwing Fuel Tanks or later FAA Approved revisions of the above supplement.

3. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891229S, Revision 1, dated 10-16-96 is required for Pilatus Models PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, and PC-6/C-H2; and Model PC-6/B2-H4 When Modified With Underwing Fuel Tanks 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 891229S, Revision 2, dated 12-10-96 is required for Pilatus Models PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, and PC-6/C-H2; and Model PC-6/B2-H4 When Modified With Underwing Fuel Tanks or later FAA Approved revisions of the above supplement.

5. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891229S, Revision 3, dated 10-22-01 is required for Pilatus models PC-6/B-H2, PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, and PC-6/C-H2; and model PC-6/B2-H4 when modified with underwing fuel tanks for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

6. 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

## Every issue (1)

- October 22, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/19/b9/19b998c2914461aed8c3b5c1ad2eddddd365728ada91e87d1dccc945841038c7)

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