# STC SA09000AC-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 55 two axis automatic flight guidance system, Model ST-585, with optional autotrim system.
- Applied: April 26, 1995
- Status date: September 30, 1996
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A31EU](https://openairdocs.org/tcds/A31EU)
- Certificate PDF: https://openairdocs.org/files/sha256/c5/06/c506726342b0d0f51eb05c227ea701a096b9561c80285d8e3427da9d2f0df451
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0BCC19649507447485256CC1007F398F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA09000AC-D

## ADs that name it (0)

None.

## Approved models (3)

- Vulcanair S.p.A. P 68B ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Vulcanair S.p.A. P 68C ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Vulcanair S.p.A. P 68C-TC ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))

## 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 5A09000AC-D This certificate issued to: S-TEC Corporation 946 Pegram Mineral Wells, TX 76067 Certifies that the change in the type design for the following product with the lioritations and conditions.

shomfor as specifed hereon meels the airworthiness requisoments of Port 23 of the Federal Aviation Regulations Original Product -TypoContificale Number: A31EU Make: Partenavia Model: P68B, P68C, and P68C-TC Installation of S-TEC System 55 Two Axis Automatic Flight Guidance System, Model ST-585, with Optional Autotrim System according to Bulletin No. 685, Revision 2, dated 9-25-96 and Master Drawing List No. 92775, Revision B, dated 9-25-96 with Optional Flight Director/Steering Horizon or later FAA Approved revisions of the above data (28 Volt System).

1. Also eligible on the above models with Camera Port.

(See Continuation Sheet, Page 2, a part of this STC.)

Thomas DAS Staff Coordinator. DAS 5 SW (Title)

**PAA FOR 8110-2 (10-68)**

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09000AC-D, Revision 1 Limitations and Conditions: (con't.)

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891160, dated 5-04-95 is required for Partenavia Models P68B, P68C, P68C-TC, P68 "Observer" and P68TC "Observer", With or Without Camera Port 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 891160, Revision 1, dated 9-30-96 is required for Partenavia Models P68B, P68C, and P68C-TC, With or Without Camera Port or later FAA Approved revisions of the above supplement.

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

000, or imprisonment not exceeding 3 years, or hath FAA FORM 8110-2-1 (10-69) PAGE 2 OF 2 PAGES

## Every issue (1)

- September 30, 1996: Amended, Current. [certificate](https://openairdocs.org/files/sha256/c5/06/c506726342b0d0f51eb05c227ea701a096b9561c80285d8e3427da9d2f0df451)

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