# STC SA09384AC-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC manual electic trim system, model ST-835.
- Applied: August 5, 1998
- Status date: March 5, 2002
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-782](https://openairdocs.org/tcds/A-782)
- Certificate PDF: https://openairdocs.org/files/sha256/a8/d6/a8d6b30c1743d383d59cda784cdb434bf033f8954ff2ba22766a7eba49ace6e2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FBE65CC86763EA2D86256D1D00541BBB.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA09384AC-D

## ADs that name it (0)

None.

## Approved models (7)

- Sierra Hotel Aero Inc. Navion A (Army L-17B and L-17C) ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion B ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion D ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion E ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion F ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion G ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion H ([TCDS A-782](https://openairdocs.org/tcds/A-782))

## 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: SA09384 AC-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 following product with the limitations and conditions therefor as specified horeon meets the aircorthiness requiements of Part 3 of the Civil Air Regulations.

Original Product Type Certificate Number: A-782 Make: Navion Model: A, B, D, E, F, G, and H Description of Type Design Change:

Installation of S-TEC Manual Electric Trim System, Model ST-835, according to Bulletin No. 935, Revision 1, dated 2-28-02, and Master Drawing List No. 921113, Revision A, dated 2-28-02 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: 8-05-98 Date Reissued:

Date of Issuance: 8-07-98 Date Amended: 3-05-02 By Direction of the Administrator FEDERAL AVIATION (Signature) TOMINSTRATIO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

FAA Fozm 8110-2 (10-68) Page 1 of 2 This certificate may be tra ferred in accordance with FAR 21.47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09384AC-D Limitations and Conditions: (con't.)

1. Eligibility limited to Navion models A, B, D, E, F, G, and H when modified by Palo Alto Airport, Inc or Symon's Engineering horizontal stabilizer angle of incidence change with or without tip tanks and the above models when modified by 285 H.P. engine conversion.

2. FAA/DAS Approved Supplemental Flight Manual, P/N 891782, dated 8-07-98 is required for Navion Models A, B, D, E, F, G, and H When Modified By Palo Alto Airport, Inc. or Symon's Engineering, Horizontal Stabilizer Angle of Incidence Change and Models A, B, D, E, and F When Modified with STC SA4-915 (Tip Tanks), STC SA4-1121 (Increased Gross Weight) or 285 H.P. Engine Conversion or Any Combination Of The Above or later FAA Approved revisions of the above supplement.

3. FAA/DAS Approved Supplemental Flight Manual, P/N 891782, Revision 1, dated 3-05-02 is required for Navion models A, B, D, E, F, G, and H when modified by Palo Alto Airport, Inc. or Symon's Engineering horizontal stabilizer angle of incidence change with or without tip tanks and the above models when modified by 285H.P. engine conversion 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.

FAA Form 8110-2-1 (10-69) 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)

- March 5, 2002: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a8/d6/a8d6b30c1743d383d59cda784cdb434bf033f8954ff2ba22766a7eba49ace6e2)

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