Holding a 40-pound generator above your head while aligning splines and mounting tabs and installing a clamp is a little too much for one person and could lead to damage of the starter generator.
In some cases engineer and equipment manufacturers of inflight internet were so focused on connectivity that security often took a backseat. The result was weakness in the system's ability to withstand a cyber-attack.
The FAA recently released Airworthiness Directive 2015-12-06 in reference to the Windshield Coupe Rail Inspection Service Bulletins for the Bombardier Learjet 40 aircraft and Bombardier Learjet 45 aircraft.
Gulfstream has released three Service Bulletins for the G150 aircraft, and the company recommends that all three be taken care of at the same time.