# STC SA7165SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC system 60 pitch stabilization system, Model ST-427.
- Applied: December 8, 1987
- Status date: December 9, 1987
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A8](https://openairdocs.org/tcds/1A8)
- Certificate PDF: https://openairdocs.org/files/sha256/19/29/1929cbc0b84f7c2cb57863b082815842235bc45bea39d975b213f829f3ccebeb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8D576D08C4245F0085256CC20056A1C9.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA7165SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Alliance Aircraft Group LLC H-250 ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Alliance Aircraft Group LLC H-295 (USAF U-10D) ([TCDS 1A8](https://openairdocs.org/tcds/1A8))

## 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: SA71655W-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 Purt 3 of the CIVil Air Regulations:

Original Product -Type bertificate Number: 1A8 Make: HELIO Model: H-250, H-295 and HT-295 Description of Type Design Change:

Installation of S-TEC System 60 Pitch Stabilization System, Model ST-427, according to Bulletin No. 527, dated 12-07-87 and Master Drawing List No. 92457, dated 12-07-87 and/or later FAA Approved revisions of the above data (14 Volt System).

1. Eligible on Helio Models H-250 and H-295 in Landplane, Floatplane or Amphibian Configurations.

2. Also eligible on Helio Model H-295 Landplane When Modified In Accordance With STC SA1589CE (Gross Weight Increase).

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

Date of Application: 12-08-87 Date Reissued:

Date of Issuance: 12-09-87 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Zarold M. oleuman * MINISTRATION DAS Staff Coordinator, DAS 5 Sw Tarold w. (Signature Hol demal (Title) 47 FAA FORM 8110-2 (10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA716554-0 Limitations and Conditions: (con't)

3. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89764, dated 12-09-87 is required for Helio Models H-250 and H-299, Landplane, Floatplane or Amphibian, H-299 Landplane when Moditied In Accordance with STC SA1589CE (Gross Weight Increase) and Model HT-295 and/or later FAA Approved revisions of the above supplement.

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

**47 PAGE 2 OF 2 PAGES**

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 and street) (City, State, and ZIP code) Exent of Authority (if licensing agreement) :

Signature of grantor (1n ink) :

Page of 2

## Every issue (1)

- December 9, 1987: Issued, Current. [certificate](https://openairdocs.org/files/sha256/19/29/1929cbc0b84f7c2cb57863b082815842235bc45bea39d975b213f829f3ccebeb)

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