# STC SA604WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Brittain Industries, Inc, United States
- Description: Installation of Brittain Industries, Inc. Model B-4 Flight Control System, including PC-1 Pitch Assist, AH-1 Altitude Hold and NAV-1 Navigation Coupler
- Applied: February 3, 1964
- Status date: October 21, 2016
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A-782](https://openairdocs.org/tcds/A-782)
- Certificate PDF: https://openairdocs.org/files/sha256/8e/27/8e27aac5ce5d363486e1291d2ba57e4a42c9b55814ab6f6ee8a16878e5174f51
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9E75E42AB2BDFB54862580B5006278FE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA604WE

## ADs that name it (0)

None.

## Approved models (6)

- Sierra Hotel Aero Inc. Navion A (Army L-17B and L-17C) ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion B ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion D ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion E ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion F ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Sierra Hotel Aero Inc. Navion G ([TCDS A-782](https://openairdocs.org/tcds/A-782))

## 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 2

Number: SA604WE

Part 3 of the Civil Air Regulations.

Original Product – Type Certificate Number: A782 Make: Sierra Hotel Aero, Inc.

Model: Navion A, B, D, E, F, G

Installation of Brittain Industries, Inc. Model B-4 Flight Control System, including PC-1 Pitch Assist, AH-1 Altitude Hold and NAV-1 Navigation Coupler installed in accordance with Brittain Industries, Inc. Installation Manual 11907-9, dated February 3, 1964. Brittain Industries, Inc. Flight Manual Supplement 11463, dated February 5, 1964, or later FAA approved revision required with this installation.

The installer must determine whether this design change is compatible with previously approved modifications. 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: February 3, 1964 Date Reissued: October 28, 2013; October 21, 2016;

November 10, 1969; November 2, 1972 Revision 2 Date of Issuance: February 5, 1964 Date Amended:

Signature

Title Matt Crouch Acting Manager, Fort Worth Aircraft Certification Office, Southwest Region Brittain Industries, Inc.

3266 N. Sheridan Road Tulsa, OK 74115

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

Transfer the ownership of Supplemental Type Certificate Number: SA604WE

To (Name and address of transferee)

From (Name and address of grantor)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST10962SC

FAA Form 8110-2 (5/14) Page 3 of 3

## Every issue (2)

- October 21, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/8e/27/8e27aac5ce5d363486e1291d2ba57e4a42c9b55814ab6f6ee8a16878e5174f51)
- October 28, 2013: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/a9/35/a9359c3a9cf22bd6cdb8afd7673765ab28055eb70e0013014fedbb4a56657757)

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