What phraseology is used to release an aircraft to a Flight Service Station (FSS)?

The phrase "Released for departure" is commonly used in air traffic control communication to formally notify an aircraft that it is cleared to proceed to a Flight Service Station (FSS) or to continue its flight in accordance with the established procedures. This phrase indicates that the appropriate clearance has been granted, and the pilot can now make the necessary preparations to depart without needing additional instructions from air traffic control.

Using specific phraseology is vital in aviation because it ensures clear communication between controllers and pilots, reducing the risk of misunderstandings. "Released for departure" conveys the precise action that the aircraft is authorized to undertake, which is moving toward or taking off from its departure point.

Other phrases like "Cleared for departure" and "Ready for takeoff" have different meanings, usually relating to takeoff clearances rather than the specific act of releasing an aircraft to an FSS. "Approved for flight" generally implies a broader authorization but does not specifically relate to the context of communication with an FSS or grant the same targeted clearance. Therefore, "Released for departure" is the most accurate and appropriate phraseology for this scenario.