曝光台 注意防骗
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been missed the ACC shall, if affected by the missed approach,
be advised immediately and subsequent action coordinated
between the ACC and the unit providing approach control
service as necessary.
10.4.3.1.2 An ACC may, after coordination with the unit
providing approach control service, release aircraft directly to
aerodrome control towers if the entire approach will be made
under visual meteorological conditions.
10.4.3.2 TAKE-OFF AND CLEARANCE EXPIRY TIMES
10.4.3.2.1 Time of take-off shall be specified by the ACC
when it is necessary to:
a) coordinate the departure with traffic not released to the
unit providing approach control service; and
b) provide en-route separation between departing aircraft
following the same route.
10.4.3.2.2 If time of take-off is not specified, the unit
providing approach control service shall determine the take-off
time when necessary to coordinate the departure with traffic
released to it.
10.4.3.2.3 A clearance expiry time shall be specified by
the ACC if a delayed departure would conflict with traffic not
released to the unit providing approach control service. If, for
traffic reasons of its own, a unit providing approach control
service has to specify in addition its own clearance expiry
time, this shall not be later than that specified by the ACC.
10.4.3.3 EXCHANGE OF MOVEMENT AND
CONTROL DATA
10.4.3.3.1 The unit providing approach control service
shall keep the ACC promptly advised of pertinent data on
controlled traffic such as:
a) runway(s)-in-use and expected type of instrument
approach procedure;
b) lowest vacant level at the holding point available for
use by the ACC;
c) average time interval or distance between successive
arrivals as determined by the unit providing approach
control service;
d) revision of the expected approach time issued by the
ACC when the calculation of the expected approach
time by the unit providing approach control service
indicates a variation of five minutes or such other time
as has been agreed between the two ATC units
concerned;
e) arrival times over the holding point when these vary by
three minutes, or such other time as has been agreed
between the two ATC units concerned, from those
previously estimated;
f) cancellations by aircraft of IFR flight, if these will
affect levels at the holding point or expected approach
times of other aircraft;
g) aircraft departure times;
h) all available information relating to overdue or
unreported aircraft;
i) missed approaches which may affect the ACC.
10.4.3.3.2 The ACC shall keep the unit providing
approach control service promptly advised of pertinent data on
controlled traffic such as:
a) identification, type and point of departure of arriving
aircraft;
b) estimated time and proposed level of arriving aircraft
over holding point or actual time if aircraft is released
to the unit providing approach control service after
arrival over the holding point;
c) requested type of IFR approach procedure if different
to that specified by the approach control unit;
d) expected approach time issued;
e) when required, statement that aircraft has been
instructed to contact the unit providing approach
control service;
f) when required, statement that an aircraft has been
released to the unit providing approach control service
including, if necessary, the time and conditions of
release;
g) anticipated delay to departing traffic due to congestion.
Chapter 10. Coordination 10-5
1/11/01
10.4.3.3.3 Information on arriving aircraft shall be
forwarded not less than fifteen minutes before estimated time
of arrival and such information shall be revised as necessary.
10.4.4 Coordination between a unit
providing approach control service and a unit
providing aerodrome control service
10.4.4.1 DIVISION OF CONTROL
10.4.4.1.1 A unit providing approach control service
shall retain control of arriving aircraft until such aircraft have
been transferred to the aerodrome control tower and are in
communication with the aerodrome control tower. Except
when otherwise prescribed in letters of agreement or local
instructions, not more than one arrival shall be transferred to a
unit providing aerodrome control service during IMC.
10.4.4.1.2 A unit providing approach control service may
authorize an aerodrome control tower to release an aircraft for
take-off subject to the discretion of the aerodrome control
tower with respect to arriving aircraft.
10.4.4.1.3 Aerodrome control towers shall, when so
prescribed in letters of agreement or local instructions, obtain
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Air Traffic Management(100)
