CS 25.1592 Performance information for assessing the
landing distance
ED
Decision 2021/015/R
(See AMC 25.1592)
(a) At the discretion of the applicant, supplementary
landing performance information may be furnished for aeroplanes landing on
slippery wet runways and on runways contaminated with standing water, slush,
snow, or ice to be used by operators to support the dispatch of a flight. If
information on any one or more of the above surface conditions is not
supplied, the AFM must contain a statement that prohibits landing on surfaces
that do not meet the minimum friction criteria, or contaminated surface(s) for
which information is not supplied. Additional information covering operation
on surface conditions other than the above may be provided at the discretion
of the applicant.
(b) Landing-distance information must
be furnished for assessing the landing performance at the time of arrival on
dry, wet, slippery wet runways, and runways contaminated with standing water,
slush, snow, or ice.
(c) Performance information that is furnished
by the applicant must be contained in the AFM. The information may be
established through calculation or testing.
(d) The data to be used for assessing the
landing performance at the time of arrival consists of the horizontal distance
from the point at which the main gear of the aeroplane is 15 m (50 ft) above the landing surface to the point
where the aeroplane comes to a complete stop. This data must allow to compute
the landing distance based on the following elements:
—
runway
condition (see AMC 25.1592),
—
wind,
—
ambient
air temperature,
—
average
runway slope,
—
pressure
altitude,
—
icing conditions,
—
planned
final-approach speed,
—
aeroplane
mass and configuration, and
—
deceleration
devices.
The
applicant may optionally provide information on runway surface conditions and
braking actions.
[Amdt
No: 25/27]
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