- “And don't go near Acon, Acon, Aconcagua!”
- ―Papa Plane[src]
Pedro's father is described as a powerful mail plane, who is capable of routining the mail route; however, he cannot do the route whenever he has a cold. He tells his son to be safe when doing the mail route by avoiding Aconcagua.
Papa Plane appears in the segment, Pedro, where he and his wife are introduced by the narrator. He is then seen when he has a cold, to which he couldn't get the mail, followed by his wife whose oil pressure is high as neither both of Pedro's parents could do the mail route, so Pedro must do the job for them. Just as Pedro's mother teaches her son to be safe, her husband tells his son to avoid going near Aconcagua
Later that night, Pedro's parents are worried that they couldn't find their son, which is later found out that Pedro survived a terrible storm in Aconcagua and the mail Pedro brought to them is a postcard, making his parents proud as Pedro feels satisfied of his first flight.