Reims-Cessna F152 — Wiring Diagram

This document outlines a minor change for the installation of a TN72 GPS position source in CS-23 aircraft, specifically applicable to unpressurized single-engine piston airplanes. It details the installation process, required equipment, and compliance with aviation standards. The TN72 GPS receiver is designed to work with Trig transponders (TT21/22 or TT31) and is intended to enhance the aircraft's ADS-B capabilities. The document serves as a guide for maintenance personnel and technicians involved in the installation and testing of the TN72 system, ensuring that all procedures comply with regulatory requirements and safety standards.

• The TN72 GPS receiver is designed for installation in unpressurized single-engine piston aircraft.
• It operates on a nominal DC power supply of either 14V or 28V.
• The typical current draw is under 0.08 Amps at 14V DC.
• Post-installation checks are critical to ensure proper functionality and safety.
• The TN72 is compliant with ETSO C199 and does not adversely affect other aircraft systems.