# STC SA8381SW-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-469-40/50
- Applied: January 4, 1994
- Status date: January 24, 2002
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A19SW](https://openairdocs.org/tcds/A19SW)
- Certificate PDF: https://openairdocs.org/files/sha256/4e/d7/4ed76118e5de645b1a7c1a120f8e6e8f0f8f19dde18ba08b60a8f5a0d5b9dc94
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/466DBBEF6B67142B85256CC20058E76A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA8381SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Air Tractor Inc. AT-802 ([TCDS A19SW](https://openairdocs.org/tcds/A19SW))
- Air Tractor Inc. AT-802A ([TCDS A19SW](https://openairdocs.org/tcds/A19SW))

## 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.

®f ,Americn JBeparlmenl at transportation - Jifeberal ,Afriaium (Ahimmslraium a S/t SA8381SW-D S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 ? tin SAe fflw dkitjpnfil f/tfffi/Kxewije/t'toditfStoafA S/ie A19SW Air Tractor AT-802 and AT-802A Installation of S-TEC System 40/50 Single and Two Axis Automatic Flight Guidance Systems, Model ST-469-40/50, according to Bulletin No. 569, Revision 4, dated 1-21-02 and Master Drawing List No.

92605, Revision D, dated 1-21-02 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.

da fa rt 1-04-94 2-07-94 1-24-02 (Signature) Michael Keirnan DAS Staff Coordinator. DAS 5 SW (Title)

PAA Form 8110-2(10-68) Page 1 of 2 This certificate may he transferred in accordance with FAR 21.47.

T&mttlt gtatta <8f .A JBepartment at ^rartaportattmt - JJfeheral ^frtaium J^imumairatwit Certificate SA8381SW-D Limitations and Conditions (con't.)

1. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 891043S, dated 2-07-94 is required for S-TEC System 40 or later FAA Approved revisions of the above supplement.

2. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 891044S, dated 2-07-94 is required for S-TEC System 50 or later FAA Approved revisions of the above supplement.

3. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 891043S, Revision 1, dated 1-24-02 is required for Air Tractor models AT-802 and AT-802A for S-TEC System 40 or later FAA Approved revisions of the above supplement.

4. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 891044S, Revision 1, dated 1-24-02 is required for Air Tractor models AT-802 and AT-802A for S-TEC System 50 or later FAA Approved revisions of the above supplement.

5. 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 <W> 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):

Signature of grantor (In ink):

## Every issue (1)

- January 24, 2002: Amended, Current. [certificate](https://openairdocs.org/files/sha256/4e/d7/4ed76118e5de645b1a7c1a120f8e6e8f0f8f19dde18ba08b60a8f5a0d5b9dc94)

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