What does the ‘O’ followed by the letters ‘KABC’ indicate?
An "off-route airport" is any airport that is not entered into the FMC as the destination airport for that specific flight.
An Off-route airport is displayed on the EFIS screen in the MAP mode. It is identified by a circle symbol "O" and the 4-letter ICAO identifier.
Note: Departure and destination airports are identified by the symbol of a runway: ||.
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