97-30 Garmin GTX 33 Transponder Installation
Refer to R66 Illustrated Parts Catalog (IPC) Figure 97-21.
NOTE
Refer to Garmin GTX 33 Transponder Maintenance Manual and
Instructions for Continued Airworthiness.
A. Description
The Garmin GTX 33 is a remote-mounted transponder with extended-squitter ADS-B
broadcast capability. The GTX 33 has no control panel face; it is controlled via the
Garmin GTN 600/700-series GPS navigator.
Refer to § 97-55 Garmin GTX 330 ES Transponder Installation.
B. Schematic
Refer to MM Figure 98-14 for Garmin GTX 33 Transponder Installation electrical schematic.
C. Removal
1. Turn battery & avionics switches off and pull out XPDR (5 amp) circuit breaker at
panel.
2. Remove hardware securing F640 face assembly to avionics panel and remove face.
3. Loosen screw and swing handle across GTX 33 transponder to unlock. Carefully
unplug/remove transponder from tray.
D. Installation
1. Turn battery & avionics switches off and pull out XPDR (5 amp) circuit breaker at
panel.
2. Carefully plug-in/install GTX 33 transponder in appropriate location in avionics tray.
3. Swing handle across transponder to lock and tighten screw. Verify equipment security.
4. Install hardware securing F640 face assembly to avionics panel.
5. Push in XPDR (5 amp) circuit breaker at panel. Turn battery & avionics switches on.
6. Perform appropriate functional checks per Garmin GTX 33 Transponder Maintenance
Manual and Instructions for Continued Airworthiness. Turn battery & avionics switches
off.
Page 97.12 Chapter 97 Avionics MAY 2015