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Control Centres (ACCs) for IFR
and CVFR flights in control
areas.
· Terminal Control Service, from IFR
units (ACCs) or Terminal Control
Units (TCUs) for IFR and
CVFR flights in specified
control areas.
· Terminal Radar Service, an extra
from IFR units to VFR aircraft
in Class C airspace.
· Alerting Service, to organisations
on behalf of aircraft needing
SAR, or crash equipment,
ambulances and other safety
services. Officially, an alerting
service is there to notify
appropriate organisations
regarding aircraft in need of
search and rescue, and to assist
as required.
· Airspace Reservation Service, from
the Airspace Reservation Unit
(ARU) and ACCs to provide
reserved areas in controlled
airspace, and give out
information concerning them
(includes military areas).
226 Canadian Private Pilot Studies
· Aircraft Movement Information
Service, from ACCs to inform air
defence units about flights in
the ADIZ.
· Customs Notification Service
(ADCUS), from ATC units (on
request) to advise customs in
advance of transborder flights at
specified points of entry.
· Flight Information Service, to
supply pilots with information
about hazardous flight
conditions, especially that which
might not have been available
on takeoff or have developed
since then.
Flight Service Stations
You can expect the following
services from an FSS:
· En Route Flight Information Service.
Allows pilots to get and pass
flight information, or report
emergencies. Relays position
reports and clearances where
radio reception is poor (they
will even contact your company
and pass messages).
· Airport Advisory Service, such as
wind, preferred runways, time
on departure, altimeter settings,
air and ground traffic, etc. etc.,
that allow pilots to execute safe
and expeditious departures and
arrivals at controlled airports.
· Remote Aerodrome Advisory Service
(RAAS). Weather, runways,
NOTAMs, PIREPs, traffic, etc.
As the office where the
information is coming from is
remote, you are responsible for
mandatory procedures. A Remote
Communications Outlet (RCO)
may be involved (below).
· Vehicle Control Service (VCS).
Controls vehicles on
manoeuvring area when the
tower is closed, or during FSS
hours when there isn't one. Not
available with RAAS.
· Flight Plan Service. Includes
weather and NOTAMs, and
itineraries. Helps you collect the
information you need for a safe
flight.
· Surface Weather Observing Service.
Collects and disseminates
surface weather data.
· Aviation Weather Information
Service (AWIS). Tailored for
preflight and enroute stages, to
help decisions.
· Aviation Weather Briefing Service
(AWBS). An interpretive
preflight and enroute briefing
service provided by certain FSSs
within a region. The service is
toll-free, and you can expect to
see satellite and radar images.
People there are trained to
cover all weather problems.
Long range cover is available,
too. In the CFS, this is signified
as W1.
· VFR Alerting Service. Notifies
SAR and conducts
communications searches if
VFR flight plans or itineraries
are not closed on time, or
overdue reports are not
received.
· Aeronautical Broadcast Service.
ATIS, weather broadcasts, etc.
· Navigation Assistance Service. VDF
service in emergency, potential
or otherwise, or when
Air Law 227
requested. Others depend on
facilities.
· Navigation Aids Monitoring Service.
Checks out VORs, ADFs, etc.
· NOTAM & PIREP service.
· Fixed Telecommunications Service.
The FSS will be connected to a
larger system so information
can be spread around easily
between ground stations and
aircraft.
Paid Communications Service. Private
companies can use their facilities,
too.
Most FSSs are open 24 hours. Wind
direction and speed is given to the
nearest 10° and 5 knots.
Remote Communications Outlets
RCOs are VHF transmitters
established miles away from the
operating agency. They are used for
aerodromes without much traffic,
and therefore do not justify the cost
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