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taiwan bound
8th Aug 2002, 08:59
I have a sim ride for an interview coming up (Not CX as the ban is on and there is no way I'm going to s**b) so could someone please let me know the set up of the hydraulic system in
1. sitting on the bay
2. pre-start
3. after start.

Many thanks ahead of time.

BlueEagle
8th Aug 2002, 10:51
From my own experience on the -400 I know that different companies have very slight variations on the hydraulic set up at certain times.

I'll move this over to Tech Log where I am sure you will get some useful information.

BlueEagle Moderator.

Cornish Jack
8th Aug 2002, 12:25
Variations between companies depending on how many Aux pumps are fitted and requirements for electrical load minimising for engine start.
e.g. GE engines, 1 Aux pump on the No4 system, pre-start:1,2,3 ADPs to Auto, No4 Aux pump on; after-start: all ADPs to Auto.

GE engines, 2 Aux pumps, pre-start: 1 and 4 Aux pumps on, 2 and 3 ADPs to Auto; after-start: all ADPs to Auto.

RR engines, 2 Aux pumps, pre-start: 1 and 4 Aux pumps on, 2 and 3 ADPs OFF; after-start: All ADPs to Auto.

and so on...