Hydraulics Flashcards
What 3 things will illuminate the SYS FAULT light? AOM II 13-1
High Temperature
Low System Quantity
Low Pressure
What will turn on the #4 Demand Pump if the switch is in AUTO? AOM II 13-1
Fuel Control switch selected OFF
Low EDP pressure
Flaps in transit on the ground
Flaps out of UP in the air.
On descent into KLAX, the #4 hydraulic system goes to zero. Which systems will be affected for the approach and landing? AOM II 13-6
Wing Gear Actuation
Outboard TE Flaps
Right Outboard Elevator
Inboard Spoilers 5,6,7,8 (AOM II 9-23)
Right Outboard Aileron
Normal Brakes (incl. Autobrakes)
Very important for effect on landing roll - will cause violent pitch-up if outboard spoilers are abruptly extended.
With the loss of #1 hydraulic quantity, which systems will be affected for the approach and landing? AOM II 13-6
Center Autopilot
Nose/Body Gear steering
Nose/Body Gear actuation
Inboard TE Flaps
Left Outboard Elevator
Alternate Brake Source (one of two)
With the loss of systems 2 & 3, why is there a speed additive for the approach? AOM II 13-11
Loss of Stab Trim and Elevator Feel is in a degraded mode, with input only from mechanical springs.
(Autopilots L/R, 8 outboard spoilers and Alternate Brake Source #2 are also lost, but no reasons for a speed additive)
On landing the Brake Source light illuminates; what does that mean? AOM II 14-6
Loss of Normal and Alternate Brakes (System 4,1 and 2)
The Demand Pumps are powered how? AOM II 13-5
GE 1 & 4 are Pnrumatic
GE 2 & 3 are Electric
P&W 1,2,3,4 are all Pneumatic
The Aux pumps is/are powered from what source? AOM II 6-13
Ground Handing Bus
With the #4 Aux pump on and providing pressure, will the hydraulic SYS FAULT light be ON or OFF? AOM II 13-1
OFF
What is the minimum hydraulic quantity for dispatch? AOM I NP-30
0.80 on the STAT page on the lower EICAS.
