Standby Hydraulic System: Alternate Flaps NG

[Pin Head]

13.20.4

Hi

Ignoring any hydraulic issues but say on TE FLAP ASSYMENTRY NNC what's the advantage of you going to ARM and it then being able to power the thrust reverser's. How is Alternate Flap linked to more power for TR's? I understand the loss of system B case.

Thanks

Pin

[STBYRUD]

What malfunction are you talking about, 'Trailing Edge Flap Asymmetry' or something else? Your reference to 13.20.4 seems to refer to the FCOM chapter on the alternate flap arm switch, but that has nothing to do with this malfunction. On the contrary, you are advised not to touch the alternate flap system because there is no further asymmetry protection.

In case you are asking what the alternate flap arm switch has to do with the standby system the FCOM is quite clear (although the AMM does a better job explaining exactly what happens), one of its functions is to start the standby system electric pump to supply pressure to the be able to extend the leading edge flaps and slats. A side effect is that if for some reason you have a sudden system A or B pressure loss the shuttle valves will allow standby hydraulic fluid to open the reversers on the side with low pressure.

[de facto]

Not sure he understands his own question..
Lack of basics is a bummer.

[B737900er]

He is login some serious flight sim hours now.