---
title: "AWO.B.SACATI.117 CS AWO.B.SACATI.117 Mode selection and switching — CS-AWO · Avioverse"
description: "- (a) Excess-deviation alerts shall operate when the deviation from the intended flight path exceeds a value from which a safe landing can be performed…"
url: "https://avioverse.aero/regulations/easa/cs-awo/subpart-b/awo-b-sacati-117"
---

# AWO.B.SACATI.117 CS AWO.B.SACATI.117 Mode selection and switching

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

IR Implementing rule

## AWO.B.SACATI.117 CS AWO.B.SACATI.117 Mode selection and switching

\- (a) Excess-deviation alerts shall operate when the deviation from the intended flight path exceeds a value from which a safe landing can be performed from offset positions equivalent to the excess-deviation alert, without exceptional piloting skill and with the visual references available in these conditions.

(See AMC AWO.B.CATII.115(a))

\- (b) Excess-deviation alerts shall be set to operate with a delay of not more than 1 second from the time that the values determined in point (a) are exceeded.

\- (c) Excess-deviation alerts shall be active at least from 90 m (300 ft) to the DH, but the vertical path alert should not provide nuisance alert below 45 m (150 ft).

\[Issue: CS-AWO/2]

IR · AWO.B.SACATI.117 — 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](https://avioverse.aero/regulations/easa/cs-awo/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 14 Aug 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.