The Air France Airplane is an airplane belonging to the French Airline Company of the same name that has appeared in several SMG4 videos (see list below).
(NOTE: This list may be incomplete.)
This is the SMG4 video in which the airplane first appeared, and is also its main appearance in Smg4's bloopers. SMG4, Mario, Luigi, Toad and Peach are traveling in it, believing it will lead them to the Super Happy Magical Fun Fun Island. It was only after SMG4 asked to the Airplane Staff the time they would get to the island that they realized that their plane was going to France. At that moment of the video, the exterior of the plane can be seen, revealing that it belongs to Air France. Several seconds later, the plane starts falling because Mario punched the captain out of it, due to the fact that he did not know what Spaghetti was. Since there was no person to pilot it, Bowser rides on the top of it. The plane proceeds to crash in the ocean near the island where the cast wanted to go. They were still alive after the crash (however, Mario initially believed that Luigi died in it).
At the end of this video, Luigi is singing his own version of "Call Me Maybe". At this moment of the blooper, a bunch of clips and pictures can be seen, most of them being from SMG4's videos. One of those clips is from the blooper "Super Happy Magical Fun Fun Island" and shows the plane falling of the sky like mentoned earlier.
In this episode, FightingMario54321 is trying to get a job. When he tries to become a pilot, he is seen in the cockpit of the airplane, flying it angrily. Then a clip of the plane crashing in the ocean from the video "Super Happy Magical Fun Fun Island" is playing, meaning that FM54321 apparently crashed the plane. He gives up trying to become a pilot, and tries some of other jobs. At the end of this same episode, a DeviantArt picture showing Mario and SMG4 in the plane can be seen, sitting on their seats, with Mario wondering when the food is coming and SMG4 being scared of an Old Man he is trying to let go.
In this video, Steve was flying in the sky, when he got hit by the airplane which was flying in the opposite direction. In his crash, Steve accidentally broke the window of the cockpit of the plane, scaring the pilot and the copilot. He then proceeded to land on a Goomba walking in Bob-omb Battlefield, killing it. At the same moment, SMG4 is running and jumping happily in the same place. A Police Officer notices SMG4 and believes he is the person who murdered the Goomba, arresting him..
In this episode, Mario, Luigi, SMG4, Peach and Toad were taking a Christmas vacation to Isle Delfino, riding on the airplane. Soon enough, Villager, who was the captain at the time as part of a revenge plan, crash-landed the plane into the North Pole. Like "Super Happy Magical Fun Fun Island", however, everyone was still alive after the crash.