Special Agent Jess LaCroix refers to a Charlie Pass, but they aren't called that.
They are called Charlie Cards and are reusable cards that can be loaded with cash value to pay bus and subway fares in the Boston area.
When the aircraft was out of control, the ground proximity warning alarm was sounding with the repeated words Pull Up. This activates when the aircraft is near the ground or high terrain yet when control is regained, the shots out the window show that it is thousands of feet in the air.
This story takes place in and around Boston, yet no characters have a Boston accent.