# STC SA391WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Brittain Industries, Inc, United States
- Description: Installation of Brittain Model B2D Flight Control System
- Applied: March 20, 1963
- Status date: November 19, 2013
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS 5A4](https://openairdocs.org/tcds/5A4)
- Certificate PDF: https://openairdocs.org/files/sha256/98/0a/980ac31764d2164f5529294d7cdeff37a09e18a2bcdc4dbf11d646963d7a14ce
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/281B188AA92DDB4986257DCC004F9722.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA391WE

## ADs that name it (0)

None.

## Approved models (14)

- Beechcraft Corporation 50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation B50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation C50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50A ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50B ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50C ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50E ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50E-5990 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation E50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation F50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation G50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation H50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation J50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))

## 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.

Number SA391WE

This certificate issued to: Brittain Industries, Inc.

3266 N. Sheridan Road Tulsa, OK 74115

Part 23*of the Federal Aviation Regulations. *FAR 23 effective February 1, 1965.

Original Product – Type Certificate Number: 5A4

Make: Beech Model: 50 Series - See Limitations and Conditions

Installation of Brittain Model B2D Flight Control System in accordance with Brittain Installation Instructions No. 11919-1.

Applicable eligible aircraft model(s) and applicable FAA Approved Airplane Flight Manual(s)/Supplement(s) required with this installation are listed on Brittain sealed Master Drawing List No. AP-35.

If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Date of application: March 20, 1963 Date reissued: November 19, 2013;

11/10/69; 11/2/72 Revision 2 Date of issuance: May 6, 1963 Date amended: June 20, 1967

Signature S. Frances Cox

Title Manager, Special Certification Office, Southwest Region

FAA Form 8110-2 (8/13) Page 1

**SUPPLEMENTAL TYPE CERTIFICATE, FAA FORM 8110-2 (CONTINUED)**

To (Name of transferee)

(Address of transferee)

(Number and street)

(City, State, and ZIP Code)

From (Name of grantor)

(Address of grantor)

(Number and street)

(City, State, and ZIP Code)

FAA Form 8110-2 (8/13) Page 2

## Every issue (1)

- November 19, 2013: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/98/0a/980ac31764d2164f5529294d7cdeff37a09e18a2bcdc4dbf11d646963d7a14ce)

---
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.