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c. For aerodromes without an instrument approach procedure,
the alternate minima is the lowest safe altitude for the final
route segment plus 500FT and a visibility of 8KM (also refer
ENR 1.10 sub-section 1.4).
72.2.13 For flight by aeroplanes under the VFR (day or night) and helicopters
operating under the VFR at night, the alternate minima are
a ceiling of 1,500FT and a visibility of 8KM.
72.2.14 For VFR helicopter operations by day, the alternate minima are the
same as for night unless the additional conditions specified in ENR
1.2 para 2.6 are met. When these additional conditions are met,
the alternate minima requirements are as shown in para 72.2.2.
72.3 Radio Navigation Aids
72.3.1 A flight which is planned to be conducted under the IFR on the last
route segment to its destination must provide for a suitable alternate
aerodrome, unless:
a. for Regular Public Transport and Charter operations:
(1) the destination is served by a radio navigation aid for
which an instrument approach procedure has been prescribed
and the aircraft is fitted with two independent and
separate radio navigation systems, each of which is
capable of using the aid; or
(2) the destination is served by two radio navigation aids for
which independent and separate instrument approach
procedures have been prescribed and the aircraft is fitted
with independent and separate radio navigation systems
capable of using these aids;
b. for Aerial Work and Private operations:
the destination is served by a radio navigation aid for which an
instrument approach procedure has been prescribed and the
aircraft is fitted with the radio navigation system capable of
using the aid.
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72.3.2 Notwithstanding the above, a flight may be planned under the IFR
by day to a destination aerodrome which is not served by a radio
navigation aid without the requirement to provide for a suitable alternate
aerodrome, provided that:
a. not more than SCT cloud is forecast below the final route segment
LSALT plus 500FT and forecast visibility at the destination
aerodrome is not less than 8KM; and
b. the aircraft can be navigated to the destination aerodrome in
accordance with para 19.1.
72.3.3 A flight permitted to operate under the VFR at night (see ENR 1.2,
Section 1.1) must provide for an alternate aerodrome within one
(1) hours flight time of the destination unless:
a. the destination is served by a radio navigation aid (NDB/VOR)
and the aircraft is fitted with the appropriate radio navigation
system capable of using the aid, or
b. the aircraft is fitted with an approved GPS receiver, and pilot
and aircraft meet the requirements of AIP GEN 1.5 Section 8.
The alternate aerodrome must be served by a radio navigation aid
(NDB/VOR) which the aircraft is equipped to use.
72.4 Runway Lighting
72.4.1 Portable Lighting. When a flight is planned to land at night at an
aerodrome where the runway lighting is portable, provision must
be made for flight to an alternate aerodrome unless arrangements
are made for a responsible person to be in attendance during the
period specified in para 73.4, to ensure that the runway lights are
available during that period.
72.4.2 Standby Power. When a flight is planned to land at night at an
aerodrome with electric runway lighting, whether pilot activated or
otherwise, but without standby power, provision must be made for
flight to an alternate aerodrome unless portable runway lights are
available and arrangements have been made for a responsible
person to be in attendance during the period specified in para 73.4,
to display the portable lights in the event of a failure of the primary
lighting.
72.4.3 PAL. When a flight is planned to land at night at an aerodrome with
PAL and standby power, provision must be made for a flight to an
alternate aerodrome equipped with runway lighting unless a reGEN
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ENR (EN ROUTE) A/L 45 effective 24 NOV 05
sponsible person is in attendance to manually switch on the aerodrome
lighting.
72.4.4 Alternate Aerodromes - PAL. An aerodrome may be nominated
as an alternate aerodrome provided that, where an aircraft is an
RPT aircraft (excluding aircraft engaged in cargo-only operations
or an aircraft below 3,500KG MTOW), or is an aircraft fitted with
single VHF communication, the alternate aerodrome must be one
which is:
a. served by a lighting system which is not pilot activated; or
b. served by PAL and there is a responsible person in attendance
to manually switch on the aerodrome lighting.
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