Final answer:
FISE stands for Flight Information Service Enroute, which provides pertinent in-flight information but not air traffic control. FICs can relay communication with ATC, including requests for ATC clearances and special authorizations.
Step-by-step explanation:
The term 'FISE' refers to the Flight Information Service Enroute, which is an aviation service provided to aircraft during the en-route phase of flight. While the FISE does not provide air traffic control services, it offers important information relevant to the safe and efficient conduct of flights. One of the services provided by a Flight Information Centre (FIC) upon request from an aircraft is the relay of communication with Air Traffic Control (ATC). This can include relaying requests for ATC clearances and special authorizations necessary for flight operations, which might be required in situations where the aircraft cannot directly contact ATC due to distance, altitude, or equipment limitations.
Flight Information Services are crucial for the safety of aircraft not under direct ATC control and provide assistance in the
coordination of changes
in flight plans or dissemination of pertinent information such as weather updates or notice to airmen (NOTAMs).