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Note: Many factors, such as the limitations of radar andADS-B, volumeof
traffic, ATCworkload and frequency congestionmay prevent ATC
from providing a surveillance service. The reason for not providing or
continuing to provide the service in a particular case is not subject to
question, nor need it be communicated to the pilot.
If, following a request for aRIS, a request for flight following is notmade
and the requested information has been provided to the pilot, ATCwill advise
‘IDENTIFICATION TERMINATED’ to indicate that the surveillance service is
terminated.
Note: WhenATS surveillance services toVFRflights are terminated,
pilots shouldmonitor theATS frequency appropriate to their area of
operation.
If the pilot has requestedflight following, theRISwill be providedon
an ongoing basis, and generally limited towithin the controller’s area of
responsibility. However, theRISmay be terminated at any time by the
controller, or by pilot advice.
Whilst receiving aRIS, the pilotmust:
• maintain a continuous listeningwatchwithATC and adviseprior to leaving
the frequency; and
• adviseATC prior to any changes to track or level.
Approaching the boundary of the controller’s area of responsibility, the pilot
will generally be advised ‘IDENTIFICATION TERMINATED, FREQUENCY
CHANGEAPPROVED’. If a continued service is requested, the pilotmust
advise ‘REQUESTHAND-OFF FOR FLIGHT FOLLOWING’ and, subject to
the approval of the adjacent ATC unit, the pilotwill be instructed to change
frequency for continuation of theRIS.
radar information service
3 – class e a i rspace