7754 Vol 2 Flyleaf - ICAO Public Maps

III-E2
EUR FASID
Note.— The preceding material takes no account of the
following aspects of the use of Category I ILS signals
below 60 m (200 ft):
a) the integrity criteria of the beam except where the ILS
classification is given;
b) the mutual information of air traffic controllers and
pilots upon the type of approach intended to be flown
and the level of facilities available (e.g. protection of
ILS critical and sensitive areas);
c) the generally inferior directional qualities of Category I
ILS antennas and their consequently larger critical
areas within which the movement of aircraft and
vehicles affects the signals received by aircraft elsewhere
in the radiation envelope;
d) the nature of the terrain immediately before the runway
threshold;
e) the increased runway length required for autoland
operations;
f) that ILS monitors will normally be set to Category I
tolerances;
g) the category of ILS ground installations used during
airworthiness certification of the aircraft.
States should take steps to ensure that operators are made
aware of the need for appropriate procedures to maintain
operational safety.
RELEVANT ICAO PROVISIONS
— Annex 10, Volume I, 3.1.2.7;
— Annex 10, Volume I, Attachment C, 2.1.9 and 2.13.