When you press the brakes with normal braking unavailable, pressure is sent by the hydraulic lines which closes off the automatic selector valve and opens a dual valve through which the hydraulic pressure is sent for braking. The alternate braking is controlled by auxiliary LP pressure distribution lines and is entirely mechanical. In older A320s, the alternate braking system unlike the normal braking is not computer controlled. The flight crew to check brake wear indicators. The parking brake must be on during the exterior inspection to allow With full pedal deflection, the pressure must be betweenīRAKE PEDALS.RELEASE Sides for the same application simultaneously applied on left and Pressure must build up without delay symmetrically on left and right Verify, before the first flight of the day, the efficiency of theĪlternate braking system (absence of “spongy pedals”). I found out that there is a system difference but didn’t fully understand could someone please explain the difference? As part of the preliminary cockpit preparation in my company’s older A320s we have to perform an alternate brake system check but not in the newer ones as per FCOM Normal procedures as below.
0 Comments
Leave a Reply. |