# STC SA4674SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Textron Aviation Inc, United States
- Description: Installation of JET AI-804R standby horizon.
- Applied: December 16, 1981
- Status date: January 25, 2017
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- Certificate PDF: https://openairdocs.org/files/sha256/4f/2c/4f2ce81abd4d5ec771f7284df0b4eb1c76e0a0271d2d90eefff3806187a93785
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1D1BB6B9D24E9258862581590056A987.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4674SW

## ADs that name it (0)

None.

## Approved models (1)

- Beechcraft Corporation HS.125 Series 700A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))

## 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.

FAA Form 8110-2 (5/14) Page 1 of

Part of the

Signature

Title Textron Aviation Inc.

One Cessna Boulevard Wichita, KS 67215 2 SA4674SW Civil Air Regulations.

10 Installation of JET AI-804R Standby Horizon in accordance with Arkansas Modification Center, Inc. Drawing List No.

125-035, Revision E dated 10/20/83, or later FAA approved revision.

FAA Approved Airplane Flight Manual Supplement dated May 18, 1982; or Supplement dated November 2, 1983, is required.

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

Hawker Siddeley HS.125-700A January 25, 2017 November 2, 1983 December 16, 1981 May 18, 1982 A3EU Mark Fuller STC ODA administrator ODA-100129-CE

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

## Every issue (2)

- January 25, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4f/2c/4f2ce81abd4d5ec771f7284df0b4eb1c76e0a0271d2d90eefff3806187a93785)
- November 2, 1983: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/33/ae/33aec312c612f6c69d720e2b98d04ef9d189094de7714b6dd67cc76cac8e88c5)

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.