When Joe is trying to fly into Chatham for the game, he calls "Chatham Tower" on the radio. In reality Chatham Airport has no control tower. If he was to call anyone it would have been "Cape Approach" and even then the decision to land would be on the pilot.
Throughout the series the pilots and controllers call the plane "Nevada-1-2-1-Papa-Papa." Proper FAA/ICAO phraseology for the phonetic pronunciation of the letter N is "November."
Lowell clearly puts the cassette tape in backwards before playing it to Fay.