Got to love how the FAA looks the other way and claims ignorance by allowing operators to put new aircraft into service with multiple changes and system enhancements. A 3 hour differences course (no mention of this system or even a paragraph in the AOM). No simulators produced prior to service introduction.
The bribery tentacles run deep into the polyester brigade.
Boeing and the airlines have the feds on their knees like a $10 hooker.