Avionics
EASA Approves Butler Avionics TAWS for Learjet 35/36
Terrain awareness and warning system is available for Europe- and U.S.-based jets
Learjet 35/36
© Butler Avionics

Butler Avionics has received EASA supplemental type certificate (STC) approval for a Garmin Class A terrain awareness and warning system (TAWS) for the Learjet 35/35A and 36/36A. The upgrade is also FAA-approved and available from Butler Avionics or other qualified avionics dealers.

The Class A TAWS installed with Garmin’s GTN 750/750Xi navigator “features three principal alerting functions,” according to Butler Avionics. These include forward-looking terrain-avoidance (enabling reduced required terrain clearance and imminent terrain impact), premature descent alert function, and basic ground proximity warning system functions.