AWO.A.EFVS.110 CS AWO.A.EFVS.110 Enhanced flight vision system -landing (EFVS-L) -Landing performance

- (a) Due to the fact that a flare cue is required for EFVS-L operations, the landing distance to be applied for EFVS-L operations should be the landing distance established for the flare cue (see AMC AWO.A.HUD.112). - (b) During all EFVS-L tests, the acceptable landing criteria should be achieved and demonstrated in accordance with the criteria of AMC2 AWO.A.EFVS.110.

[Issue: CS-AWO/2]

- (a) The landing performance of an EFVS-L is acceptable if the EFVS-L image/symbology provides the pilot with visual cues to enable to perform the following without requiring exceptional piloting skill or alertness: - (1) Speed control within +10/ -5 kt of the approach speed, whether manually controlled or with auto-throttle, as proposed by the applicant, up to the point where the throttles are retarded for landing. - (2) A smooth transition through flare to landing. - (3) Approach, flare, and landing at a normal sink rate for the aircraft, i.e. the average touchdown rate of descent not exceeding 6 ft per second. - (4) All touchdowns in the TDZ. Longitudinal touchdown performance should be demonstrated within the TDZ which is the first one third, or the first 3 000 ft, of the usable runway, whichever is more restrictive, and demonstrated to be equivalent to or better than that achieved in visual operations for the specific aircraft. - (5) Prompt and predictable correction of any lateral deviation away from the runway centre line to smoothly intercept the centre line. - (6) Touchdowns with a bank angle that is not hazardous to the aeroplane, i.e. no contact of any part of the engine nacelle or the wing with the ground. - (7) A normal derotation. - (8) Satisfactory and smooth control of the aeroplane from touchdown to a safe taxi speed. - (9) Satisfactory and smooth control of the path of the aeroplane along the runway centre line through roll-out to a safe taxi speed. - (10) A safe go-around any time, including up to touchdown in all configurations to be certified. - (b) The demonstrated performance of the installed EFVS-L at representative visibility levels for EFVS landing system operations will determine whether there is a need for any additional limitations (for example, crosswind and offset). Appropriate limitations should be published in the AFM.

[Issue: CS-AWO/2]