# STC SA5684SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Textron Aviation Inc, United States
- Description: Installation of dual Bendix electronic flight instrument system Model EFS-10.
- Applied: May 25, 1983
- 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/a4/3f/a43f1773c8095eaf1e22cadec37534da4de2659b19b9397de6a79f58f8593d68
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E6711D4AC9BCD0E2862581590059F9BB.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5684SW

## 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 700B ([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 SA5684SW Textron Aviation Inc.

One Cessna Boulevard Wichita, KS 67215 10/4b Civil Air Regulations.

Hawker Siddeley; British Aerospace HS.125-700A; BAe.125-800A 2 A3EU Installation of dual Bendix Electronic Flight Instrument System Model EFS-10 in accordance with Drawing List Number 125-037, Revision L dated 1/16/86, or later FAA approved revision.

1. FAA Approved Airplane Flight Manual Supplement dated March 22, 1984, is required for Model HS.125-700A, Serial Number NA0336, only; Supplement dated May 31, 1984, is required for all other Model HS.125-700A aircraft.

2. FAA Approved Airplane Flight Manual Supplement dated July 3, 1985, is required for British Aerospace Model BAe.125-800A.

3. FAA Approved Airplane Flight Manual Supplement dated July 3, 1985, Revision A dated February 26, 1986, is required for software level "4C".

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

May 25, 1983 January 25, 2017 March 22, 1984 May 31, 1984; July 3, 1985; February 26, 1986 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/a4/3f/a43f1773c8095eaf1e22cadec37534da4de2659b19b9397de6a79f58f8593d68)
- February 26, 1986: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/93/d9/93d98a9885a6bd8208fd8cb890dbe2efea0d25dd424d6b2b6ba1084d5958e74b)

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