Landing Gear Flashcards
What are the services on each HYD system
L & R systems: (FG)
Flt controls
Reverse
Center: (FFNG)
Flaps
Flt controls
Nose Gear
Gear
What is the max gear speed for RET and EXT
270 kts
displayed on Gear Handle
What and Where is the Rudder Pedal Steering Disconnect Switch
Temparary disconnect the rudder pedals from the nose wheel steering (good for flight control check)
on the Tiller
Where is the Alternate gear switch
landing Gear Panel
next to the gear handle
describe the Main gear Brake system
Electrically powered
Multiple-disc Carbon brakes
What other brakes systems are there
Anti skid
Auto brake
Parking Brake
What is Air/Ground Sensing
Sensors on Main Gear beams and struts
What stops the gear from being selected up on the ground
Lever lock
released when airborn
Can the Lever be overridden?
Yes
LOCK
OVRD
on gear panel
(only with non normal checklist)
How do gear doors operate
some Mechanically connected
some HYD operated
How does each gear sense down and locked
Main
Side Brace
Drag Brace
Nose Gear
Drag Brace
(If only one of the Braces on the main dont lock, EICAS message)
What System is activated by the ALTERNATE GEAR Switch
Dedicated DC power Electric HYD pump
Uses center HYD fluid
What does the Switch do
landing gear Free Fall to the down and locked position
HYD doors do not close thats why the EICAS GEAR DOOR message remains
If you use the Alternate Gear extension can you select the gear back up
YES
as long as the Center HYD is operating
How can you raise the gear after an ALT Gear Extension
select the Gear Lever UP
this resets the normal system
