Which field identifies the origin airport in the FP string for UAL114?

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Multiple Choice

Which field identifies the origin airport in the FP string for UAL114?

Explanation:
In a flight plan string, the origin airport is identified by the three-letter IATA code that appears in the second field of the string. The first field carries other flight data, the second field names where the flight begins, a subsequent field may carry route or altitude information, and the last field shows the destination airport code. So for UAL114, the second field is ELN, which designates the origin airport. The final field GEG is the destination, and the other numeric field is not an airport code but carries other flight plan data.

In a flight plan string, the origin airport is identified by the three-letter IATA code that appears in the second field of the string. The first field carries other flight data, the second field names where the flight begins, a subsequent field may carry route or altitude information, and the last field shows the destination airport code. So for UAL114, the second field is ELN, which designates the origin airport. The final field GEG is the destination, and the other numeric field is not an airport code but carries other flight plan data.

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