Part 2 General Standards and Procedures

CHAPTER 1 AIR TRAFFIC SERVICES AND UNITS

1. The objectives of Air Traffic Services are to:

a) prevent collisions between aircraft in the air;
b) assist in preventing collisions between aircraft moving on the apron or the
maneuvering area, and between aircraft and obstructions on the
maneuvering area;
c) expedite and maintain an orderly flow of air traffic;
d) provides advice and information useful for the safe and efficient conduct of flights;
e) notify appropriate organizations regarding aircraft in need of search and rescue aid and assist such organizations as required.

2. An aircraft is known or believed to be in a state of emergency, including being subjected to unlawful interference (IVAO not allowed), shall be given priority over other aircraft.

CHAPTER 2 GENERAL OPERATING PROCEDURES

Issuing Clearances

1. ATC units shall issue clearances to meet the objectives of collision prevention and maintaining an orderly and expeditious flow of air traffic.
2. A controller has no authority to withhold a clearance for other than traffic reasons, the safety of the public, and the freedom of IVAO users.

Contents of a Clearance

An Air Traffic Control Clearance shall include:

1. Aircraft identification,
2. Clearance limit,
3. Route of flight (including SID or STAR as appropriate),
4. Level of flight for entire or part of route (including level changes),
5. Special instructions.

The clearance may be issued as an initial clearance or as an amendment to a previous clearance.

Syntax:

(A/c callsign) cleared to (destination) via (ATS route or Flight Planned Route), (SID name) departure, squawk (transponder code)

Example:

CPA520, Cleared to Narita, OCEAN 2A, SQ3301.

Clearance Limit

1. Clearance limit shall consist of either of the following:

a) an aerodrome, or 

b) a Reporting Point, or

c) controlled airspace boundary.

2.An aircraft will be cleared for its entire route to the point of first intended landing only when it will continue to fly in controlled or advisory airspace on leaving the Hong Kong FIR.

Route of Flight

1. The “Route of Flight” element of the Clearance shall be issued with the phrase “Cleared via flight plan route”, provided that it is used for an initial clearance only, and the route required by ATC is the same as the flight plan route requested by the pilot.
2. Overflights shall where possible be cleared on the most direct route through the Hong Kong TMA. Aircraft arriving and/or departing within the Hong Kong TMA shall follow the STARs and SIDs for the appropriate route as published in the AIP Hong Kong.

Assignment of Cruising Levels

1. An aircraft may be instructed to change the level at a specified time, place, or rate.
2. An aircraft maintaining a cruising level shall have priority over aircraft requesting that level. When two or more aircraft are at the same level, and vertical separation needs to be established, the preceding aircraft shall normally have priority.
3. CDC shall check Flight plan requested FL are in compliance with HKAIP ENR 1.8 7030 Flight Level Assignment Scheme (FLAS), Final level is decided by ATC in upper FIR airspace i.e. Area control.

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