Per standard FAA/EASA regulations, TSO Authorization alone does not constitute airworthiness installation approval. Technicians must leverage aircraft-specific Supplemental Type Certificates (STC) or field approvals to complete the legal installation.
Airborne weather radar is powerful equipment. Before any hardware is mounted, you must understand the Maximum Permissible Exposure Level (MPEL)
[ Aircraft Nose Radome ] | +-----------------+ | GWX 75 Radar | <--- Level with Aircraft WL and BL +-----------------+ | [ Mounting Bracket ] | [ Aircraft Bulkhead ] (Rigidly Bonded)
airborne weather radar requires focusing on clarity, safety, and technical accuracy. gwx 75 installation manual
Use this checklist derived from the final page of the GWX 75 installation manual:
The RTA should be mounted in the aircraft nose radome, designed for optimal radar coverage without obstruction.
: Wiring must be routed and secured (using strain relief or wire ties) to ensure it does not interfere with the unit's full range of sweep and tilt. Before any hardware is mounted, you must understand
Carefully unpack the GWX 75 machine and inspect it for any damage or defects. Check the following components:
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Installers must cross-reference recent Garmin Service Bulletins (such as Bulletin 24027 or 20111) to ensure the hardware's internal software matches the required software version of the interfaced cockpit displays. Garmin GWX 75 Weather Radar - Sarasota Avionics Carefully unpack the GWX 75 machine and inspect
Garmin High-Speed Data Bus used to transfer high-resolution radar imagery to primary displays (e.g., G1000 NXi, GTN 750 Xi, GI 275).
Ensure the antenna has at least 0.5 inches of clearance from the radome throughout its full range of movement.