Glossary of Terms


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A

Anticipated operating conditions

Anticipated operating conditions. Those conditions which are known from experience or which can be reasonably envisaged
to occur during the operational life of the aircraft taking into account the operations for which the aircraft is made
eligible, the conditions so considered being relative to the meteorological state of the atmosphere, to the configuration of
terrain, to the functioning of the aircraft, to the efficiency of personnel and to all the factors affecting safety in flight.
Anticipated operating conditions do not include:
a) those extremes which can be effectively avoided by means of operating procedures; and
b) those extremes which occur so infrequently that to require the Standards to be met in such extremes would give a
higher level of airworthiness than experience has shown to be necessary and practical.


APAPI

Abbreviated Precision Approach Path Indicator. A precision approach path indicator (PAPI) consisting of only two sharp cutoff light units situated on the left side of the runway.


API

Advance Passenger Information (API) System. An electronic communications system whereby required data elements are
collected and transmitted to border control agencies prior to flight departure or arrival and made available on the primary
line at the airport of entry.


Approach and landing operations using instrument approach procedures

“Approach and landing operations using instrument approach procedures” means
instrument approach and landing operations which are classified as follows:
“Non-precision approach and landing operations” - which means an
instrument approach which utilises lateral guidance but does not use vertical
guidance;


“Approach and landing operations with vertical guidance” - which means an
instrument approach and landing which utilises lateral and vertical guidance
but does not meet the requirements established for precision approach and
landing operations;


“Precision approach and landing operations” – which means an instrument
approach and landing using precision lateral and vertical guidance with
minima as determined by the category of operation;


Note: Lateral and vertical guidance refers to the guidance provided either by a
ground-based navigation aid or computer generated navigation data;


Approach Categories

Approach and landing operations using instrument approach procedures. Instrument approach and landing operations are
classified as follows:


Non-precision approach and landing operations.

An instrument approach and landing which utilizes lateral guidance but
does not utilize vertical guidance.


Approach and landing operations with vertical guidance. An instrument approach and landing which utilizes lateral and
vertical guidance but does not meet the requirements established for precision approach and landing operations.


Precision approach and landing operations. An instrument approach and landing using precision lateral and vertical
guidance with minima as determined by the category of operation.


Note.— Lateral and vertical guidance refers to the guidance provided either by:
a) a ground-based navigation aid; or
b) computer generated navigation data.


Categories of precision approach and landing operations:
Category I (CAT I) operation. A precision instrument approach and landing with:
a) a decision height not lower than 60 m (200 ft); and
b) with either a visibility not less than 800 m or a runway visual range not less than 550 m.


Category II (CAT II) operation. A precision instrument approach and landing with:
a) a decision height lower than 60 m (200 ft), but not lower than 30 m (100 ft); and
b) a runway visual range not less than 300 m.

Category IIIA (CAT IIIA) operation. A precision instrument approach and landing with:
a) a decision height lower than 30 m (100 ft) or no decision height; and
b) a runway visual range not less than 175 m.


Category IIIB (CAT IIIB) operation. A precision instrument approach and landing with:
a) a decision height lower than 15 m (50 ft), or no decision height; and
b) a runway visual range less than 175 m but not less than 50 m.


Category IIIC (CAT IIIC) operation. A precision instrument approach and landing with no decision height and no runway
visual range limitations.


Note.— Where decision height (DH) and runway visual range (RVR) fall into different categories of operation, the
instrument approach and landing operation would be conducted in accordance with the requirements of the most demanding
category (e.g. an operation with a DH in the range of CAT IIIA but with an RVR in the range of CAT IIIB would be considered
a CAT IIIB operation or an operation with a DH in the range of CAT II but with an RVR in the range of CAT I would be
considered a CAT II operation).


Approach control service

“approach control service” means air traffic control service for arriving or departing
controlled flights


Approach phase (Engines)

Approach phase. The operating phase defined by the time during which the engine is operated in the approach operating mode.

Take-off phase. The operating phase defined by the time during which the engine is operated at the rated thrust.


Appropriate ATS authority

“appropriate ATS authority” means in relation to the State, the Authority and, in relation to
any other state, the relevant authority designated by the state which has responsibility for
the provision of air traffic services in the airspace concerned, and in relation to those parts
of the high seas where, pursuant to a regional air navigation agreement, a state has
accepted responsibility for the provision of air traffic services, the relevant authority
designated by that state


Appropriate person

“appropriate person” means an authorised officer of the Authority as defined in the
Act or a person authorised by the appropriate Authority for the purposes of this
Order or the Chicago Convention.


Approval Dangerous Goods

Approval. An authorization granted by an appropriate national authority for:
a) the transport of dangerous goods forbidden on passenger and/or cargo aircraft where the Technical Instructions state
that such goods may be carried with an approval; or
b) other purposes as provided for in the Technical Instructions.


Note.— In the absence of a specific reference in the Technical Instructions allowing the granting of an approval, an
exemption may be sought.



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