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AWO.B.CATIII.117 CS AWO.B.CATIII.117 Automatic ground-roll control

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

Official sources: EASA Easy Access Rules (opens in a new tab)

IRImplementing rule

AWO.B.CATIII.117CS AWO.B.CATIII.117 Automatic ground-roll control

(See AMC AWO.B.CATIII.115)

(a)When automatic ground-roll control or head-up ground-roll guidance is being used, the probability that the point on the aeroplane centre line between the main wheels will deviate more than 8.2 m (27 ft) from the runway centre line on any one landing shall be less than 5 %.

(b)Additionally, when the operation is predicated on the provision of fail-operational ground-roll control, the probability that the outboard landing gear will deviate to a point more than 21 m (70 ft) from the runway centre line while the speed is greater than 74 km/h (40 kt) shall be less than 10-6.

[Issue: CS-AWO/2]

IR · AWO.B.CATIII.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

Consolidated from the EASA Easy Access Rules (revision 14 Aug 2026, extracted 2 Nov 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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