Answer :
We can see that if crossing the Instrument Landing System (ILS) final approach course becomes imminent while being vectored and an approach clearance has not been issued, the pilot should immediately advise Air Traffic Control (ATC) of the situation and request an approach clearance.
Who is a pilot?
A pilot is a person who is trained and licensed to operate an aircraft, such as an airplane or a helicopter.
If the pilot is unable to establish two-way communication with ATC, or if the communication is impaired, the pilot should proceed in accordance with the last clearance received from ATC until approaching the ILS final approach course, at which point the pilot should initiate a missed approach procedure.
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