7754 Vol 2 Flyleaf - ICAO Public Maps

AOP
III-I3
overrides the runway length required for take-off (Section
A), the runway length requirement should be based on the
a) Source and accuracy of performance data.
1) use an approved flight manual when available;
or
2) if no approved flight manual is available, use the
manufacturer’s latest estimated figures for the
minimum guaranteed performance. State date of
the manufacturers’ data and per cent conservatism,
if any.
b) Landing flap setting. The recommended flap setting
which may — for a given runway — be less than the
normal or maximum flap setting because of approach
noise considerations.
c) Runway slope. Assume level runway.
d) Surface wind. Assume zero wind unless it may be
expected that preferential runway use may dictate tail
wind landing. State tail wind, if used.
following starting points:
e) Pressure altitude. Use the pressure altitude
corresponding to the aerodrome elevation.
f) Aerodrome temperature. Use standard temperature.
g) Runway conditions. Assume wet runway conditions
except if the meteorological conditions are such that
there is only a remote possibility of having wet
runways.
h) Landing weight. Use maximum certified landing weight
unless the climb limited landing weight at standard
temperature is lower.
If the runway length based on items i) to viii) inclusive
is considered insufficient because of operational reasons
(e.g. Cat. II/III operations, etc.) a longer landing runway
length requirement based on specific factors contained
in the relevant operations/flight manual, should be
proposed, provided the reasons are explained clearly.