The French spoken by Chantalle when she calls for security makes no sense at all. It roughly translates as 'Safety! We are the imposters! I was holding!'. At least that's what she is pronouncing, if it was not written that way.
The insert shot of what is supposed to be Captain Peralta's plane shows an Airbus A340-300. This four-engined type struggles to be economical even on long hauls and does not make any sense on short hops like "Quebec to Albany" which was discussed earlier.
Captain Holt wears his Commendation breast bar above his World Trade Center Breast Bar. When the WTC bar is worn, it is worn above all other medals, but below the American Flag bar.
When Jake's dad - the pilot of an airliner - is piloting a flight that Jake is on, he comes onto the PA and states his son is sitting in seat 3B. However, on Jake's left armrest is a letter "C", which would be typical for a seat that's second from the right side of the plane; i.e., he is actually sitting in seat 3C.
There is no International airport in Drummondville a city of roughly 80,000 people located between Quebec City and Montreal, which both have international airports.
The police officer in the so-called Drummondville airport speaks with a Parisian accent and is dressed like a French policeman. Quebec is the french speaking province of Canada. He should have had the local accent and be dressed accordingly.
Amy and Terry refer to the baked goods they are using to represent islanders as donuts. Technically, they are donut holes.