# STC SA4-1069

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: SOUTHWESTERN AERO EXCHANGE INC., United States
- Description: Remove original Arens controls and lock mechanism for left and right cowl flaps and replace with electronic actuators, control switches, and indicator.
- Applied: August 24, 1959
- Status date: May 1, 2006
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-2-582](https://openairdocs.org/tcds/A-2-582), [TCDS A-757](https://openairdocs.org/tcds/A-757), [TCDS A-765](https://openairdocs.org/tcds/A-765)
- Certificate PDF: https://openairdocs.org/files/sha256/2a/7c/2a7c8fc73ffacbd9494dcfb61ee0b8cf71a8c01d1636f0f938e5f522116cf90e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9D0F3AEEB08B26098625719600662698.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4-1069

## ADs that name it (0)

None.

## Approved models (5)

- Raytheon Aircraft Company 18 Series ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Raytheon Aircraft Company Army AT-11 ([TCDS A-2-582](https://openairdocs.org/tcds/A-2-582))
- Raytheon Aircraft Company C18 Series ([TCDS A-757](https://openairdocs.org/tcds/A-757))
- Raytheon Aircraft Company C18S (Army AT-7) ([TCDS A-757](https://openairdocs.org/tcds/A-757))
- Raytheon Aircraft Company D18C ([TCDS A-765](https://openairdocs.org/tcds/A-765))

## 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.

This Certificate issued to Southwestern Aero Exchange, Inc.

18502 East 108th Street North Owasso, OK 74055-8124 Part CAR 3 of the Civil Air Regulations.

A-765, A-2-582, A-757 BEECH C18, D18, C45, AT7 or AT11 Description of Type Design Change: Remove original Arena controls and lock mechanism for left and right cowl flaps up to lever Beech P/N 189521 and replace with electrical actuators, control switches indicator as per drawing No. CF-6015 Revision “A”, Paragon Tool Die & Engineering.

Limitations and Conditions: This approval should not be extended to other specific airplanes of this model on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

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

This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of application: August 24, 1959

Date of issuance: March 4, 1960

Date reissued: Jan. 23, 1998; May 1, 2006

( Signature)

Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title)

## Every issue (1)

- May 1, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/2a/7c/2a7c8fc73ffacbd9494dcfb61ee0b8cf71a8c01d1636f0f938e5f522116cf90e)

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