# STC SA09192AC-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 55/5 5X Two Axis Automatic Flight Guidance System, Model ST-650,
- Applied: November 1, 1996
- Status date: April 25, 2001
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A24](https://openairdocs.org/tcds/3A24)
- Certificate PDF: https://openairdocs.org/files/sha256/70/ac/70aced79e947c25dfeff89ac982cf197f0088228c61164955515ca1f0cd29fff
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D075C9C9071FAA9285256CC1007F3A05.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA09192AC-D

## ADs that name it (0)

None.

## Approved models (8)

- Cessna Aircraft Company 185 ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company 185A ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company 185B ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company 185C ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company 185D ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company 185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company A185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24))
- Cessna Aircraft Company A185F ([TCDS 3A24](https://openairdocs.org/tcds/3A24))

## 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: SA09192AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Certifies that the change in the type design for the fellowing froduct with the limitations and conditions therfer as specified hereon meets the ancoithin requirments of I ast 3 of the Civil shir Regulations.

Original Product I ype Cotifcate A umber : 3A24 Make: Cessna Model: 185, 185A, 185B, 185C, 185D, 185E, A185E, and A185F Description of Type Design Change:

Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-650, according to Bulletin No. 750, Revision 4, dated 4-25-01 and Master Drawing List No. 92963, Revision D, dated 4-25-01 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: 11-01-96 Date Reissued:

Date of Issuance: 11-06-96 Date Amended: 3-22-99, 4-25-01 By Direction of the Administrator FEDERAL AVIATION (Signature) TOMNISTRATOS Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title) ble by a fine of not exceeding $1,000, or impr eding 3 years, or both.

FAA Form 8110-2 (10-68) lance with FAR 21.47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09192AC-D Limitations and Conditions: (con't.)

Also eligible on the above models (landplane, floatplane or amphibian) when equipped with STC SA1441 WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (internal tip tanks).

FAA/DAS Approved Supplemental Flight Manual, P/N 891314, dated 11-06-96 is required for Cessna Models 185, 185A, 185B, 185C, 185D, 185E, A185E; and A185F, S/N 18503683 and Below (Landplane, Floatplane or Amphibian) And The Above Models When Modified per STC SA2529WE (Internal Tip Tanks) and/or STC SA1441 WE (Robertson STOL) or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891315, dated 11-06-96 is required for Cessna Model A185F, S/N 18503684 and On (Landplane, Floatplane or Amphibian) And The Above Model When Modified per STC SA2529WE (Internal Tip Tanks) and/or STC SA1441WE (Robertson STOL) or later FAA Approved revisions of the above supplement.

4. FAA/DAS Approved Supplemental Flight Manual, P/N 891314, Revision 1, dated 3-22-99 is required for Cessna models 185, 185A, 185B, 185C, 185D, 185E, A185E; and A185F, S/N 18503683 and below (landplane, floatplane or amphibian) and the above models when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (internal tip tanks) or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891315, Revision 1, dated 3-22-99 is required for Cessna model A185F, S/N 18503684 and on (landplane, floatplane or amphibian) and the above model when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (internal tip tanks) or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891314, Revision 2, dated 4-25-01 is required for Cessna models 185, 185A, 185B, 185C, 185D, 185E, A185E; and A185F, S/N 18503683 and below (landplane, floatplane or amphibian) and the above models when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (internal tip tanks) 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 891315, Revision 2, dated 4-25-01 is required for Cessna model A185F, S/N 18503684 and on (landplane, floatplane or amphibian) and the above model when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (internal tip tanks) for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

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

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

The EAA will reissue the certificate in the name cf the transferee and forward it to himn

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)

- April 25, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/70/ac/70aced79e947c25dfeff89ac982cf197f0088228c61164955515ca1f0cd29fff)

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