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16

Both are in taxiing SOP. The reason is in case the spoilers were accidentally left extended on the flight before (or during a maintenance check before the flight by the line engineers). If that's the case, then pressing MAX while taxiing before checking the flight controls (spoilers included) will engage the full RTO brakes and surprise the crew, injure a ...


2

On the old system the switching between the normal braking using the green circuit to the alternate braking using the yellow circuit is done by an automatic switching valve pressure dependant (Automatic selector).The alternate system being very little used, it happened the valve did not switch from green to yellow when loosing the green circuit please ...


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