Continuity mistake: The Japanese lady in the red jumpsuit in the fight scene on the roof is first wearing boots with a little heel, then when the fight starts the boots are flat.
Continuity mistake: When Zappata is cleaning after the murder on Kira, she hears something. When she draws her gun she is wearing gloves. The second after, gloves are gone. (00:30:30 - 00:31:00)
The Tale of the Book of Secrets - S4-E12
Character mistake: A Bed and Breakfast is named "De La Sol." That is incorrect in Spanish. Sol is masculine, and should be named "Del Sol." (00:15:15)
Frequently Recurring Struggle for Existence - S4-E15
Continuity mistake: Rich hacks into a secret web conversation where a meeting is being set up. The meeting is to be at the Travis Hotel, Room 319, 3 PM. Shortly thereafter, talking about the finding, they say that the meeting is going to be at the Caris Hotel. (00:16:10)
The One Where Jane Visits an Old Friend - S4-E16
Factual error: A newspaper clipping is shown saying a 15 year old boy became the youngest licensed pilot in Connecticut history. It goes on to say he finished his instruction, signed the paperwork, and took off again in a rented plane for his first solo flight. There are many errors here: 1 - The minimum age for even a student pilot's license is 16. For an unpowered glider, it is 14, but such was not the case here. 2 - Further, a student pilot is not a "licensed" pilot. 3 - In order to obtain a private pilot's license, besides all the written tests and practical instruction, the student needs to have completed: 5 hours of solo cross country flying; 1 solo cross country flight of at least 150nm total distance with full stop landings at 3 points; and one segment of at least 50nm between T/O and landings. So he could not have gone on "his first solo flight" after receiving his license. 4 - A new pilot does not have to sign anything. It is the Aviation Examiner that has to sign off the student and give him a temporary license upon satisfactory completion of the private pilot flight test. (00:26:00)
Continuity mistake: When the FBI is head to Iceland on the jet you see a rear view of the jet and it has four engines. When the team jumps out of the jet later you see a shot from underneath and it only has two engines. (00:13:15 - 00:25:25)