Character mistake: The Captain mentions that the guards were killed in the robbery, but the guards were tazed and hit (with the door and the other was punched), not killed. The companion thieves were killed by Griffin though. "Perp steals 75million, kills 2 guards..." No he didn't. (00:16:01)
Factual error: A thief has stolen 75 million dollars. He runs out with two large duffel bags. All US bills weigh a single gram. This means that $1,000,000 in $100 bills - the largest bills in circulation - weigh around 10 kilograms, or a little over 22 pounds. $75 million would be 1,650 pounds. No way this could be carried in two duffel bags.
Factual error: Ben and his wife are listening to the radio in Danny's truck. The station shown is WKUD. They are in Tannersville, NY and WKUD is in Edgewood, Ohio, 420 miles away. Too far for an FM station to reach. Besides, the audio is talking about news in New York City.
Factual error: Ben asks Yale University library to loan him a medieval diary and they immediately send it to him. No library or archive in the world would loan out a unique item like this, even to another university. Usually they are not allowed to leave the premises, except under very strict conditions for a high-profile exhibition, certainly not just sent to an academic who's interested in reading them.
Factual error: Micaela was pushed off a cliff and landed on a ledge, and tells Zeke she has dislocated her shoulder. Zeke helps her get back to the top, and for the last push, she puts out both arms and Zeke pulls her to safety. Not possible. A person with a dislocated shoulder would not be able to move that arm.
Factual error: The Captain of Flight 828 is recreating the storm the airplane flew through in a simulator. He states that he increased speed to 300 Knots to fly through the storm. That is not accurate. If he increased the speed to 300 Knots then he was flying below 300 knots. Yet the cruising speed of a Boeing 737 is over 450 Knots. He could not have been cruising at such a slow airspeed. Even the 300 knots he increased to is slower than the plane's normal cruising speed.
Factual error: A kid comes to the police station to give Micaela a gun used in a murder. He has the gun in a paper bag in his hands. How could a kid enter the inner offices of the NYPD with a gun in his hands (albeit in a bag), and not get caught at least by metal detectors? (00:26:47)
Factual error: Escorting Saanvi and her colleague to see Dr. Cooper, NSA Agent Tim Powell flashes a gold badge and shouts "NSA" to the officers. NSA agents carry ID Badges, but not gold shields. Further, they would never identify themselves as NSA personnel to outsiders.
Other mistake: Micaela and her partner are chasing an RV. A man from the RV throws a propane tank in her path. You can tell from the sound and how it bounces that it is empty. When the car hits it, the tank explodes, and she swerves the car into the brush and the airbags deploy. Later, as she is driving on the same road she gets a call that the RV has been spotted. Her car shows no damage. (00:17:44 - 00:29:10)