# STC SA09515AC-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-895-20/30.
- Applied: December 17, 2001
- Status date: December 19, 2001
- Product: Aircraft, Small Airplane
- Certification basis: Part 1, Part 21
- Data sheets: [TCDS 1A8](https://openairdocs.org/tcds/1A8)
- Certificate PDF: https://openairdocs.org/files/sha256/a9/4b/a94bac2b8893fe9d8622eb6da0b435e66b74fafcf88f26a28030c3a3f5283b17
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/69417834F2EE33D385256CC1007F3B36.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA09515AC-D

## ADs that name it (0)

None.

## Approved models (7)

- Helio Aircraft LLC H-250 ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Helio Aircraft LLC H-295 (USAF U10D) ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Helio Aircraft LLC H-395 (USAF L-28A or U-10B) ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Helio Aircraft LLC H-395A ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Helio Aircraft LLC H-700 ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Helio Aircraft LLC H-800 ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Helio Aircraft LLC HT-295 ([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: SA09515AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Part 3 of the Civil stir Regulations.

Original Product I ypo Certificate Number:

1A8 Helio H-250, H-295 (USAF U-10D), H-395 (USAF L-28A or U-10B), H-395A, H-800, HT-295, and H-700 Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-895-20/30, according to Bulletin No. 995, dated 12-14-01 and Master Drawing List No. 921208, dated 12-14-01 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: 12-17-01 Date Reissued:

Date of Issuance: 12-19-01 Date Amended:

By Direction of the Administrator (Signature) TOMINISTRATIO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

FAA Form 3110-2 (10-68) Page 1 of 2

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09515 AC-D Limitations and Conditions: (con't.)

Also Eligible on models H-250, H-295 (USAF U-10D), H-395 (USAF L-28A or U-10B), H-395A, and H-800 (landplane, floatplane or amphibian).

Also Eligible on model H-295 (USAF U-10D) (landplane) when modified per STC SA1589CE (gross weight increase).

Also Eligible on models H-395 (USAF L-28A or U-10B) and H-395A (landplane, floatplane or amphibian) when modified per STC SA2261CE (gross weight increase).

4. Also Eligible on models HT-295 and H-700 (landplane).

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 892097, dated 12-19-01 is required for 1. Helio models H-250, H-295 (USAF U-10D), H-395 (USAF L-28A or U-10B), H-395A, and H-800 (landplane, floatplane of amphibian); 2. Helio model H-295 (USAF U-10D) (landplane) when modified per STC SA1589CE (gross weight increase):

3. Helio models H-395 (USAF L-28A or U-10B) and H-395A (landplane, floatplane or amphibian) when modified per STC SA2261CE (gross weight increase); and 4. Helio models HT-295 and H-700 (landplane) for S-TEC System 20 or later FAA Approved revisions of the above supplement.

6. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 892098, dated 12-19-01 is required for 1. Helio models H-250, H-295 (USAF U-10D), H-395 (USAF L-28A or U-10B), H-395A, and H-800 (landplane, floatplane of amphibian); 2. Helio model H-295 (USAF U-10D) (landplane) when modified per STC SA1589CE (gross weight increase);

3. Helio models H-395 (USAF L-28A or U-10B) and H-395A (landplane, floatplane or amphibian) when modified per STC SA2261CE (gross weight increase); and 4. Helio models HT-295 and H-700 for (landplane) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

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

PAA 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 and street) (City, State, and ZIP code) Extent of Authority (if licensing agreement): - Date of Transfer:

Signature of grantor (In ink):

## Every issue (1)

- December 19, 2001: Issued, Current. [certificate](https://openairdocs.org/files/sha256/a9/4b/a94bac2b8893fe9d8622eb6da0b435e66b74fafcf88f26a28030c3a3f5283b17)

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