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AWO.B.SACATI.121 CS AWO.B.SACATI.121 Radio altimeter (or other device capable of providing equivalent performance and integrity level)

All Weather Operations (CS-AWO) · CS-AWO · EAR revision 14 Aug 2026

IRImplementing rule

AWO.B.SACATI.121CS AWO.B.SACATI.121 Radio altimeter (or other device capable of providing equivalent performance and integrity level)

The radio altimeter (or other device capable of providing equivalent performance and integrity level) installation 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 displayed information, at least in the height band from 45 m (150 ft) downwards.

[Issue: CS-AWO/2]

IR · AWO.B.SACATI.121 — CS-AWO · ED Decision 2022/007/R · CS-AWO Easy Access Rules · EAR revision 14 Aug 2026

All rules in SUBPART B -APPROACH AND LANDING SECTION 2 -AIRWORTHINESS CERTIFICATION OF AEROPLANES FOR OPERATIONS WITH DECISION HEIGHTS (DHs) BELOW 60 M (200 FT) AND DOWN TO 45 M (150 FT) -SPECIAL AUTHORISATION CATEGORY I (SA CAT I) OPERATIONS

Consolidated from the EASA Easy Access Rules (revision 14 Aug 2026, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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