PPRuNe Forums - pack off then on before pushback(B777)

PPRuNe Forums (https://www.pprune.org/)

- Engineers & Technicians (https://www.pprune.org/engineers-technicians-22/)

- - pack off then on before pushback(B777) (https://www.pprune.org/engineers-technicians/652809-pack-off-then-before-pushback-b777.html)

triptobaek

20th May 2023 07:09

pack off then on before pushback(B777)

Just before the B777 push back (before the before start procedure), it takes about a few seconds for the pack to turn off and on again, and I don't think this is for engine start.
Does anyone know why?

LME (GOD)

23rd May 2023 11:17

It's a function of the autostart. (unless the crew have something else in check pushback checklist which requires packs off?)

All times are GMT. The time now is 13:26.