PPRuNe Forums - B777 doesn't like tow truck

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gearlever

16th Oct 2019 12:27

Quote:

Originally Posted by Uplinker (Post 10595518)

As Check Airman asks: surely there must be a brake accumulator and a battery driven electric hydraulic pump for the parking brake, at least?

I don’t know the B777 systems, can anybody comment?

Brake accumulator YES, but no elec DC pump for brake system/accu.

Capt Quentin McHale

16th Oct 2019 22:01

Brake system accumulator supposedly allows approximately 6 brake applications when fully charged. Surely when towing an aircraft "deadship" one would supply EXT PWR and charge the brake system accumulator first BEFORE carrying out said towing operation. Am I missing something here?

Rgds McHale.

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