AWO.C.TOO.106 CS AWO.C.TOO.106 Performance demonstration

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

IRImplementing rule

AWO.C.TOO.106CS AWO.C.TOO.106 Performance demonstration

(See AMC AWO.C.TOO.106 and Figure 1)

- (a) It shall be demonstrated that the performance of the take-off guidance system is such that the aeroplane will not deviate significantly from the runway centre line during take-off while the system is being used within the limitations established for it. Compliance may be demonstrated by flight test, or by a combination of flight test and simulation. Flight testing shall cover those factors affecting the behaviour of the aeroplane. - (b) In the event that the aeroplane is displaced from the runway centre line at any point during the take-off or abandoned take-off, the system shall provide such guidance as would enable the pilot to control the aeroplane smoothly back to the runway centre line without any sustained nuisance oscillation.

SECTION 1 -AIRWORTHINESS CERTIFICATION OF AEROPLANES FOR TAKE-OFF OPERATIONS (TOOs) IN LOW VISIBILITY

ED Decision 2022/007/R

- (a) The take-off guidance information shall be provided in such a form that it is immediately usable by the pilot who performs the take-off. Its use shall not require the pilot to refer to the instrument panel for this information, nor shall it require the other pilot to take control of the aeroplane. Reversion to the system shall be easy and natural. - (b) The information display shall be usable in all appropriate conditions of ambient light, runway lighting and visibility. - (c) The system shall be designed to minimise crew errors. (See AMC AWO.C.TOO.104(c))

[Issue: CS-AWO/2]

AMC AWO.C.TOO.104(c) Guidance display

ED Decision 2022/007/R

The system should be so designed that it is obvious whether the pilot has not taken all the actions necessary for its correct operation.

[Issue: CS-AWO/2]

ED Decision 2022/007/R

The minimum equipment, which shall be serviceable at the start of the take-off for compliance with the general criteria of this Subpart and those relating to performance and failure conditions, shall be established and articulated.

[Issue: CS-AWO/2]

ED Decision 2022/007/R

Easy Access Rules for All-Weather Operations (CS-AWO)

- (c) In the event of an engine failure, if the pilot follows the guidance information and disregards external visual reference, the lateral deviation of the aeroplane shall remain safely within the confines of the runway.

[Issue: CS-AWO/2]

IR · AWO.C.TOO.106 — CS-AWO · CS-AWO Easy Access Rules · EAR revision 14 Aug 2026

AMCAcceptable means of compliance

AMC AWO.C.TOO.106 Performance

Show the text

(see also Figure 1)

The factors that affect the behaviour of the aeroplane include, for example, wind conditions, xLS ground facility characteristics, aeroplane configurations, weight, and centre of gravity (CG), and should be covered by flight testing.

The demonstration of system performance should comprise at least the following:

- -10 all-engine take-offs; - -3 take-offs with simulated failure of the critical engine at V1MIN + 10 kt; and - -2 rejected take-offs with simulated failure of the critical engine at V1.

Half of the all-engines take-offs and two of each of the engine failure conditions should be carried out in crosswinds equal to or greater than the level being sought for certification with optional aeroplane and runway configurations. The remainder should be carried out in optional winds in the most adverse aeroplane configuration at two different runways, which represent the reasonable extremes of those likely to be used in service.

In the engine failure take-offs, VR should not be less than 28 km/h (15 kt) above the engine failure speed and should be delayed until the path of the aeroplane has stabilised and the aeroplane is converging with the centre line.

The take-off may begin using external visual reference but, from a speed no greater than 50 % of V1, the guidance commands should be followed as accurately as possible without using the external view. To ensure that this is done, it is recommended that the windscreen be blanked.

For xLS-based systems, compliance may be shown using an xLS, which complies with the requirements for Category III Operations in relation to centring error and beam bends along the runway. Allowance may be made for long-term perturbations of the xLS localiser.

[Issue: CS-AWO/2]

AMC — CS-AWO · CS-AWO Easy Access Rules · EAR revision 14 Aug 2026

All rules in SUBPART C -TAKE-OFF SECTION 1 -AIRWORTHINESS CERTIFICATION OF AEROPLANES FOR TAKE-OFF OPERATIONS (TOOS) IN LOW VISIBILITY

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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