IRImplementing rule
AWO.B.CATII.120CS AWO.B.CATII.120 Radio altimeter (or other device capable of providing for equivalent performance and integrity level)
The radio altimeter (or other device capable of providing for equivalent performance and integrity level) shall be such that the probability of the provision of false height information leading to a hazardous situation is extremely remote. If compliance is based on monitoring, the detection of a failure shall lead to the removal or obscuration of the displayed information, at least in the height band from 30 m (100 ft) downwards.
[Issue: CS-AWO/2]
IR · AWO.B.CATII.120 — CS-AWO · ED Decision 2022/007/R · CS-AWO Easy Access Rules · EAR revision 14 Aug 2026