When the plane is seen flying, they show what appears to be a modern Boeing 737 with the "hamster pouch" engine nacelles, but after the plane lands it appears to be a pre 1979 models with the original Pratt & Whitney engines.
in the first few minutes was a cockpit scene showing 3 engine clusters. The 737 has only 2 engines. The pilot indicated to ATC that there were 179 passengers on that plane when in fact, the 737-200 can hold not many more than 130 seats. The exterior shots of the plane don't show an over wing exit window.
The investigators are walking through the aircraft cabin carrying an orange flight recorder (AKA Black box). Black boxes are not accessible from inside a Boeing 737 aircraft. They would have been removed externally and never brought into the cabin.
The aircraft shown is a Boeing 737-200. That aircraft would only have a passenger and crew totaling, at maximum seating density, of 136. To reach the 191 person capacity it would have to be a New Generation 737-800, at a minimum.
The captain tells JFK control tower that 191 people are on board the plane when asked. When the plane is on the tarmac, it is a Boeing 737 (200 series). This plane was designed to have seating for about 120 passengers in an all coach arrangement.
The passenger count is listed as 191. The aircraft that explodes on the ground is a Boeing 737-200, which only seats 119 passengers. A more accurate aircraft model to support the stated passenger count would be a Boeing 757-200, which could be configured to carry the required 191 passengers and crew.
When they announce that Montego Air (which given the name would almost certainly be a Jamaican airline) is offering travel vouchers for anyone willing to take a later flight, Ben jumps at it noting that it covers their next trip to the Mayo Clinic in Minnesota. No foreign airline services New York City to Minnesota, so there's no reason for him to even consider this before asking if the voucher is transferable to another airline.
Main character is seen using an iPhone with a fingerprint scanner on it. The first iPhone with this feature was the iPhone 5s which came out in September 2013, but the characters were on a plane that supposedly took off in April 2013.
The information on undamaged aircraft voice and data recorders can be read almost immediately. Yet, there's no mention if the information on the recorders do or don't corroborate the stories told by the pilot and co-plot.
After the plane is fully examined as-is, the FBI director says they're going to take it apart as they push the plane out the hangar. If they planned to dismantle the jet, why would they push it outside?
At 23:59 -look closely. Unless the old lady was up a nearby telephone pole here is no vantage point from which the POV in the recording could be achieved.
Upon landing, Michaela and Ben's phones show "no service," presumably because their cell service was shut off years before. In reality, their phones would still have service, but they'd be unable to place calls other than to 911.
In one scene Ben refers to his son as the smallest 15 year old ever. However his son would be 16 not 15. Doctors give his date of birth as May 2002 and they come back in November 2018.
After the turbulence the girl with the broken laptop states she lost 6 weeks of research data.
A broken laptop still contains the data; just reconnect the laptop to an external screen or connect the harddrive to another computer.