FDIO message field 09 contains which data element?

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Multiple Choice

FDIO message field 09 contains which data element?

Explanation:
In this FDIO format, each field is a labeled place for a specific piece of data. Field nine is the slot used for the altitude the aircraft is requesting. That’s why the correct choice is the requested altitude—it reflects what the pilot is asking to climb to or descend to, which the controller then reviews to decide whether to approve, modify, or assign a different altitude. This differs from the assigned altitude, which is the altitude ATC has cleared the aircraft to fly at, not what the pilot has asked for. Route and speed are carried in other fields dedicated to their respective data elements, so they aren’t the information field nine is meant to convey.

In this FDIO format, each field is a labeled place for a specific piece of data. Field nine is the slot used for the altitude the aircraft is requesting. That’s why the correct choice is the requested altitude—it reflects what the pilot is asking to climb to or descend to, which the controller then reviews to decide whether to approve, modify, or assign a different altitude.

This differs from the assigned altitude, which is the altitude ATC has cleared the aircraft to fly at, not what the pilot has asked for. Route and speed are carried in other fields dedicated to their respective data elements, so they aren’t the information field nine is meant to convey.

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