PPRuNe Forums - View Single Post - Ethiopian Airlines 787 nose gear collapse
Old 5th Mar 2016, 21:54
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drag king
 
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Originally Posted by Teddy Robinson
Presuming one is commanding one's B787, how does one deduce that the brakes are released prior to instructing the ground team to commence the pushback ? or does a "special light" come on in the tug
No idea about the Dreamliner (as someone suggested it's fitted with electric breakes, thus one-in-a-kind...no rated so I pass) but on the Bus there is a triple-indicator gauge that tells you ACCU PRESS (1 indicator) and YELLOW HYD PRESS (2 indicators) and when the PB is OFF, if everything works correctly, the pilot taxing gives the pedal a squeeze: if the 2 indicators read zero then pressure is supplied by the G HYD thus everything works OK and there is no residual pressure on the PB. Not speculating anything tho, in fact the 787 is a totally different beast...

However if this was a pushback-accident, I would say that in order to snap the gear's links, the breaks must have bitten after the a/c was moving at a steady speed.

Tea and cookies with the CP...must wear the hat!

DK
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