airport code "BFT" is not unique?

[beanumber]

> filter(airports, faa == "BFT")
Source: local data frame [2 x 7]

  faa               name      lat       lon alt tz dst
1 BFT           Beaufort 32.47741 -80.72316  37 -5   A
2 BFT BFT County Airport 32.41083 -80.63500 500 -5   A

Obviously, this is an upstream issue, but might we want to filter these out? A hacky temporary solution is:

  filter(name != "Beaufort") %>%

in the creation of the airports table.