STC SA09666AC

P.O. Box 610 Municipal Airport Mineral Wells, TX 76068

Part 23 Amendments 23-1 through 23-53 of the Federal Aviation Regulations.

SEE ATTACHED APPROVED MODEL LIST (AML) Original Product Type Certificate Number :

Make : SEE ATTACHED APPROVED MODEL LIST (AML) SEE ATTACHED APPROVED MODEL LIST (AML) Model :

Description of Type Design Change: Installation of a Global Positioning Steering System (GPSS) consisting of a GPSS Adapter Controller 1C975-0 and a GPSS Annunciator/Switch 1C977-0 or 1C977-1 in accordance with Century Flight Systems, Inc. Master Document List referenced on the attached AML, or later FAA approved revisions. Airplane Flight Manual Supplement referenced on the attached AML, or later FAA approved revisions is required for this installation.

Limitations and Conditions: 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 must give the other person written evidence of that permission.

( Signature) Michele M. Owsley Manager, Airplane Certification Office, Southwest Region

(Title) Date of application : November 15, 2004

Date of issuance : March 21, 2006

FAA Form 8110-2-1(10-69) Page 2 of 2

FAA APPROVED MODEL LIST (AML) NO. 69A2096

FAA Approved: AFMS 68S1150, Initial Release (IR), Dated 03/21/2006 FAA Approved: AML 69A2096, Amendment B, Dated 03/21/2006 FAA Approved: MDL 87A1310, Revision B, Dated 01/05/2006 FAA Accepted: Instructions for Continued Airworthiness (ICA) Bulletin No. 2146, Dated 01/02/2005

Original Issue Date: March 21, 2006

Item Aircraft Make Aircraft Model Original Type Certifcate Number Certification Basis for Alteration Installation Type MDL Revision Date AFMS Approval Date AML Amendment and FAA Approval Date 1 Piper Warrior PA28-151 2A13 CFR Part 23 01/05/2006 03/21/2006 B and 03/21/2006 2 Piper Warrior II PA28-161 2A13 CFR Part 23 01/05/2006 03/21/2006 B and 03/21/2006 3 Piper Cherokee PA28-180 2A13 CFR Part 23 01/05/2006 03/21/2006 B and 03/21/2006 4 Piper Archer II PA28R-200, PA28R-201T 2A13 CFR Part 23 01/05/2006 03/21/2006 B and 03/21/2006 5 Piper Arrow III PA28R-201 2A13 CFR Part 23 01/05/2006 03/21/2006 B and 03/21/2006 6 Piper Arrow IV PA28RT-201, PA28RT-201T 2A13 CFR Part 23 01/05/2006 03/21/2006 B and 03/21/2006

FAA Approved: Approval Date: March 21, 2006

1. AML Revision Log Revision No. Pages Description FAA Approval Date (-) ALL IR Not FAA Approved 06/23/2005 A ALL Added Models Not FAA Approved 09/30/2005 B ALL Removed Models 03/21/2006

2. Introduction

This document is the FAA Approved Model List (AML) for STC09666AC-A for installing the GPSS Heading System into eligible airplanes. The GPSS Heading System consists of a GPSS Adapter/Controller 1C975-0 and GPSS Annunciators 1C977-0 (vertical panel) or 1C977-1 (horizontal panel).

Revisions to the AML must coordinated between the STC holder and the responsible ACO, and require FAA approval. AML revsions will be treated as STC amendments, so FAA involvement is required as defined in the applicable FAA Orders.

This STC is only applicable to the 14 CFR Part 23 airplanes identified in this AML. Installations in other 14 CFR Part 23, Part 25, Part 27, and Part 29 aircraft are not authorized under this STC.

This STC assumes the following equipment is already installed on each airplane eligible for this proposed modification. The following equipment must be properly linked to meet the intended function for the system, as certified under this AML approval.

List of required equipment that is not part of this approval.

Part Description Part Type Autopilot C21, C31, C41, C2000, or Triden GPS/FMS Arinc 429 output with Label 121 Heading System Direct Current or 400 Hertz (Hz) Roll Gyro

3. Certification Basis (amendment 23-53)

23.143 23.301 23.303 23.305 23.307 23.561 23.572 23.603 23.605 23.607

23.609 23.611 23.613 23.619 23.625 23.627 23.671 23.771 23.777 23.1301

23.1309 23.1321 23.1322 23.1329 23.1331 23.1357 23.1365 23.1367 23.1381 23.1431

23.1501 23.1541 23.1555 23.1581 23.1583 23.1585

FAA Form 8110-2-1(10-69) Page 2 of 2