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simple approach lighting system '& speci$ed in 5.3.4.2 to
5.3.4.9 should be provided to serve a non-insmment runway
aa-odrome which is intended for use at night and mnnot be where the code number is 3 or 4 and intended for at night,
easily identified from the air by other means. except when the runway is used only in conditions of good
visibility, and sufficient guidance is provided by other visual
aids.
5.3.3.9 The identification beacon shall be located on the Note.- A simple approach Iighting system can also
aerodrome in an area of low ambient background lighting. provide visual guidance by day.
Chapter 5 Annex 14 -Aerodromes
B.- Non-precision approach runway
Where physically practicable, a simple approach lighting
system as specified in 5.3.4.2 to 5.3.4.9 shall be provided to
serve a non-precision approach runway, except when the
runway is used only in conditions of good visibility or
sufficient guidance is provided by other visual aids.
Note.- It is advisable to give consideration to the
installation of a precision approach category I lighting system
or to the addition of a runway lead-in lighting system.
C.- Precision approach runway category I
Where physically practicable, a precision approach category
I lighting system as specified in 5.3.4.10 to 5.3.4.21 shall
be provided to serve a precision approach runway category I.
D.- Precision approach runway categories I1 and I11
A precision approach category I1 and I11 lighting system as
specified in 5.3.4.22 to 5.3.4.39 shall be provided to serve a
precision approach runway category I1 or 111.
Simple approach lighting system
Location
5.3.4.2 A simple approach lighting system shall consist of
a row of lights on the extended centre line of the runway
extending, whenever possible, over a distance of not less than
420 m from the threshold with a row of lights forming a
crossbar 18 m or 30 m in length at a distance of 300 m from
the threshold.
5.3.4.3 The lights forming the crossbar shall be as nearly
as practicable in a horizontal straight line at right angles to,
and bisected by, the line of the centre line lights. The lights of
the crossbar shall be spaced so as to produce a linear effect,
except that, when a crossbar of 30 m is used, gaps may be left
on each side of the centre line. These gaps shall be kept to a
minimum to meet local requirements and each shall not exceed
6 m.
Note I.- Spacings for the crossbar lights between 1 m and
4 m are in use. Gaps on each side of the centre line may
improve directional guidance when approaches are made with
a lateral error, and facilitate the movement of rescue and fire
jghting vehicles.
Note 2.- See Attachment A, Section 11 for guidance on
installation tolerances.
5.3.4.4 The lights forming the centre line shall be placed
at longitudinal intervals of 60 m, except that, when it is desired
to improve the guidance, an interval of 30 m may be used. The
innermost light shall be located either 60 m or 30 m from the
threshold, depending on the longitudinal interval selected for
the centre line lights.
5.3.4.5 Recommendation.- If it is not physically possible
to provide a centre line extending for a distance of 420 m
fLom the threshold, it should be extended to 300 m so as to
include the crossbar. If this is not possible, the centre line
lights should be extended as far as practicable, and each
centre line light should then consist of a barrette at least 3 m
in length. Subject to the approach system having a crossbar at
300 m fiom the threshold, an additional crossbar may be
provided at 150 m fiom the threshold.
5.3.4.6 The system shall lie as nearly as practicable in the
horizontal plane passing through the threshold, provided that:
a) no object other than an ILS or MLS azimuth antenna
shall protrude through the plane of the approach lights
within a distance of 60 m from the centre line of the
system; and
b) no light other than a light located within the central part
of a crossbar or a centre line barrette (not their
extremities) shall be screened from an approaching
aircraft.
Any ILS or MLS azimuth antenna protruding through the
plane of the lights shall be treated as an obstacle and marked
and lighted accordingly.
Characteristics
5.3.4.7 The lights of a simple approach lighting system
shall be fixed lights and the colour of the lights shall be such
as to ensure that the system is readily distinguishable from
other aeronautical ground lights, and from extraneous lighting
if present. Each centre line light shall consist of either:
a) a single source; or
b) a barrette at least 3 m in length.
　
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