Airline operators for public transport must
submit the details regarding their Aerodrome Operating Minima
(AOM) to the Civil Aviation Department before commencing operations
at the Hong Kong International Airport (HKIA).
AOM contains instructions for the pilots under what visibility (in
terms of Runway Visual Range (RVR)) and/ or cloud ceiling
can the aircraft take off, and under what visibility (again
in terms of RVR) and visual reference can the aircraft continue
the approach to land from the decision altitude (for precision
approaches, e.g. Instrument Landing System (ILS)) or from
the minimum descent altitude (for non-precision approaches).
There are a number of factors affecting the values of AOM.
They include aerodrome terrain profile, aircraft capability
(e.g. aircraft climb performance, avionics capability), aerodrome
equipment capability (e.g. runway lighting system and ILS),
pilot capability, individual company’s standard operating
procedures and State regulations.
When establishing the AOM, an operator has to conform to rules
laid down by the State (or Region) of the Operator. Further
more, it also has to account for any restrictions which might
be applied by the State (or Region) of the Aerodrome.
of the State (or Region) of the Operator
The State (or Region) of the Operator has
the responsibility for the approval of the method used to
establish such minima, and for supervising compliance with
those rules it may prescribe for the operator as a whole.
of the State (or Region) of the Aerodrome
The State (or Region) of the Aerodrome has
to provide data such as Obstacle Clearance Altitude/ Height
(OCA/ H), details of electronic aids for an approach to landing,
etc, to enable an operator to establish AOM for each runway
intended to be used at that particular aerodrome. Since the
State (or Region) of the Aerodrome has the responsibility
for safety of air navigation within its own Flight Information
Region (FIR), it follows that it retains that authority to
accept the AOM submitted by the operators.
Under Air Navigation (Hong Kong) Order 1995 (AN(HK)O 1995), operators for public transport are required to submit the details regarding their AOM to the Hong Kong Civil Aviation Department (HKCAD) before commencing operations at the Hong Kong International Airport (HKIA). For foreign operators to meet this requirement, while applying to operate to Hong Kong in accordance with GEN 1.2 of the Aeronautical Information Publication (AIP), in addition to other documents required to be submitted to HKCAD for assessment, the operators who wish to conduct low visibility operations at the HKIA shall submit the following information :-
a) The completed DCA Form 236 (Open with new window)to show the operator's CAT II/III minima authorised by their State; and
b) The CAT II/III authorisation issued by their State.
Detailed requirements relating to AOM are published in the AD 1.1 of AIP and/or Aeronautical Information Circulars (AICs) in http://www.hkatc.gov.hk (Open with new window).