STC SA689NW

Supplemental type certificate · Sierra Industries Inc

Holder
Sierra Industries Inc · United States
Status
Current · Reissued
Status date
September 8, 2005
Applied
November 13, 1978
Product
Aircraft · Small Airplane
Certification basis
Part 21, Part 25
Data sheet
TCDSA22CE

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 5, 2025.

What it approves

Installation of transponder identification switch in the left hand control wheel.

What the certificate says

From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.

FAA Form 8110-2 (5/14) Page 1 of 2

Reissued on July 31, 2017 to supersede the original STC, which has been lost or misplaced.

Number: SA689NW

Part 25 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: A22CE Make: Cessna Model: 500

Installation of transponder identification switch in the left hand control wheel in accordance with Advanced Systems Technology, Inc., Drawing No. 10-82009(B) dated November 13, 1978.

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Cessna 500, S/N 0174 only. A copy of this Certificate and Installation Instructions Drawing 10-82009(B) shall be maintained as part of the permanent records for the modified aircraft. Compatibility of this design change with previously approved modifications must be determined by the installer. 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.

Date of Application: November 13, 1978 Date Reissued: 12/10/81; 10/10/86; 9/8/05; 7/31/17 Date of Issuance: November 22, 1978 Date Amended:

Signature

Title Jim Grigg Manager, Fort Worth A CO Branch, Compliance & Airworthiness Division Sierra Industries, Ltd.

122 Howard Langford Drive Uvalde, TX 78801

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

Transfer the ownership of Supplemental Type Certificate Number: SA689NW

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: SA18NW

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

ADs that name this STC · 0

An AD can apply because an STC is installed, or mention one in its text.

No AD in this release names this STC

Approved models · 1

MakeModelData sheet
Textron Aviation Inc.500A22CE