“Removed/installed Garmin GTR 225 COM transceiver (P/N 010-01071-00, S/N 1234) per STC SA1234CE. Verified no short circuits on power & antenna coax. Performed operational check – TX/RX clear on 118.00, 121.50, 136.975 MHz. No defects. FAR 43.13-1B compliant.”
A gyroscopic instrument that provides a visual representation of the aircraft’s pitch and roll relative to the horizon.
Technicians
Modern avionics include digital radios, GPS units, and transponders that require precise antenna installation and signal testing. Core Competencies for A&P Technicians
Maintenance involves checking the suction (vacuum) systems that drive pneumatic gyros or inspecting the electrical inverters powering electrical gyros. Technicians must also understand the "spool-up" times and the limits of Gimbal errors during operational checks.