737-800 FLT Control switch

[ElNull]

I'm having a small question regarding 737-800 FLT Control switch.

If you turn the A FLT CONTROL switch to STBY RUD position, it will prevent hyd system A pressure from pressurizing Rudder/Ailerons/Elevator and will allow standby system to power Rudder and the thrust reverse. my question here is will the standby power the both thrust reverser or only Number 1 thrust reverser (and Number 2 thrust reverser will still powered by hyd system B)?

[Nimer767]

Enull ,, i hope you start your flight training soon :P

anyway, as long as hyd system B is pressurized it will be in charge for its items. when system B also fail or become unpressurized the standby system will be responsible for both thrust revers

[ElNull]

Nimer767,

does this means the ALTERNATE FLAPS master switch (when ARMed) will let the standby system power Number 2 thrust reverser only?

[de facto]

Read the QRH.loss sys B and you will find the answer.