# STC SA5332SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 40/50, Single and Two Axis Automatic Flight Guidance Systems, Model ST-239-40/50.
- Applied: August 7, 1984
- Status date: December 28, 1998
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 1A8](https://openairdocs.org/tcds/1A8)
- Certificate PDF: https://openairdocs.org/files/sha256/fe/b3/feb3666ce659e2fd1df0f00788c9406ea633ca78726de2cc482670438e3b7277
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F3688C7D3E9D446485256CC200122871.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5332SW-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

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

3ltuitr& ^tatcs (l)f .America of tErauBjJortatunt - Jfeueral Afnatton Aomhttstrctlunv Certificate 5A5332SW-D S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 d/ts/frribstj 1A8 Helio H-250, H-295, H-395, H-395A, H-700, H-800, and HT-295 Installation of S-TEC System 40/50 Single and Two Axis Automatic Flight Guidance Systems, Model ST-239-40/50, according to Bulletin No. 339, Revision 1, dated 12-21-98 and Master Drawing List No.

92284, Revision A, dated 12-21-98 or later FAA Approved revisions of the above data (14 Volt System).

1. Also eligible on models H-250, H295 (USAF U-10D), H-395 (USAF L-28A or U-10B), H395A, H-700, and H-800 (landplane, floatplane or amphibian) (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.

if mj rr>/Iy£ri'//f' frsrfSwf 8-07-84 8-27-84 12-28-98, Revision (Signature) Michael Keirnan DAS Staff Coordinator. DAS 5 SW (Title)

Jlftitifeb Jitates (Sf ,j\nu'rtca of "(Erattspnrtaitmt - ^eheral JUnattrm .Ahmmtsiraitim QLerttficate , SA5332SW-D, Revision 1 Limitations and Conditions (con't.)

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

3. 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 model HT-295 (landplane).

5. FAA Approved Supplement to Pilots Operating Handbook and/or Airplane Flight Manual, P/N 89504. dated 8-27-84 is required for S-Tec System 40 or later FAA Approved revisions of the above supplement.

6. FAA Approved Supplement to Pilots Operating Handbook and/or Airplane Flight Manual, P/N 89505. dated 8-27-84 is required for S-Tec System 50 or later FAA Approved revisions of the above supplement.

7. FAA/DAS Approved Pilots Operating Handbook and/or Airplane Flight Manual Supplement, P/N 89504, Revision 1, dated 12-28-98 is required for 1. Helio models II-250, H-295 (USAF U- 10D), H-395 (USAF L-28A or U-10B), H-395A, H-700, and H-800 (landplane, floatplane or 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 model HT-295 (landplane) for S-TEC System 40 or later FAA Approved revisions of the above supplement.

8. FAA/DAS Approved Pilots Operating Handbook and/or Airplane Flight Manual Supplement, P/N 89505, Revision 1, dated 12-28-98 is required for 1. Helio models H-250, H-295 (USAF U- 10D), H-395 (USAF L-28A or U-10B), H-395A, H-700, and H-800 (landplane, floatplane or 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 model HT-295 (landplane) for S-TEC System 50 or later FAA Approved revisions of the above supplement.

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

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 ^IP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

U.S. GOVERNMENT PRINTING OFFICE : 1966 OF —205-579

## Every issue (1)

- December 28, 1998: Amended, Current. [certificate](https://openairdocs.org/files/sha256/fe/b3/feb3666ce659e2fd1df0f00788c9406ea633ca78726de2cc482670438e3b7277)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.