# STC SA4046SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Textron Aviation Inc, United States
- Description: Installation of dual Sperry C-14 compass system.
- Applied: March 8, 1979
- Status date: January 25, 2017
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- Certificate PDF: https://openairdocs.org/files/sha256/e3/05/e3050b0258286c4de74d91a6b064e686b0541f14448f0ee4c40c8bd39757d7fa
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1BB36B24728B201C862581590056A923.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4046SW

## ADs that name it (0)

None.

## Approved models (2)

- Beechcraft Corporation BAe.125 Series 800A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- 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 SA4046SW Civil Air Regulations.

4b Installation of Dual Sperry C-14 Compass Systems according to Drawing List No. 125-018, Revision B dated 10/1/79, or later FAA approved revision.

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

Hawker Siddeley, British Aerospace HS.125-700A, BAe.125-800A January 25, 2017 September 26, 1984 March 8, 1979 October 5, 1979 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/e3/05/e3050b0258286c4de74d91a6b064e686b0541f14448f0ee4c40c8bd39757d7fa)
- September 26, 1984: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/73/36/7336e5ed8753478a0a97b90fbbdb4f2dc96e349f16081e7c8f641e0159d4a9f3)

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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.