Butler Aviation's STC for ADS-B Out applies to Learjet models 31, 31A, 35, 35A, 36, 36A and 60. The study assessed potential damage a drone impact could cause to critical flight surfaces on ...

Butler Aviation's STC for ADS-B Out applies to Learjet models 31, 31A, 35, 35A, 36, 36A and 60. With the addition of the new STCs, Butler National now provides ADS-B upgrades for the Learjet 24/25 ...

PHILADELPHIA — A key piece of hardware that aviation experts and pilots said could solve the mystery in the fatal crash of the medical transport Learjet on Jan. 31 turned out to be useless.

A medical transport jet crashed on Friday in northeast Philadelphia. The Learjet 55 had six people on board when it went down shortly after departing Northeast Philadelphia Airport, according to ...