Forward Instrument Panel Flashcards
FORWARD INSTRUMENT PANEL
Q: What is the function of the two Landing Gear Control and Interface Units (LGCIU)?
Ref: (FOM VOL. III-DSC-32-10-10, FOM VOL. III-DSC-32-10-20)
- Provide sequencing, operation, monitoring, and indications for the landing gear
- Provide aircraft “In Flight” or “On the Ground” signals to other aircraft systems
FORWARD INSTRUMENT PANEL
Q: When does the red arrow in the LND panel illuminate?
Ref: (FOM VOL. III-DSC-32-10-40)
Below 750 feet RA, when the aircraft is in the landing configuration and the landing gear is not locked down
FORWARD INSTRUMENT PANEL
Q: What happens if your airspeed is 280 knots and you place the Landing Gear lever to DOWN?
Ref: (FOM VOL. III-DSC-32-10-10)
Nothing - A safety valve shuts off hydraulic power to the landing gear system when airspeed is above 260 knots
FORWARD INSTRUMENT PANEL
Q: What do the red UNLK lights indicate?
Ref: (FOM VOL. III-DSC-32-10-40)
The landing gear is not locked in the selected position
FORWARD INSTRUMENT PANEL
Q: What controls and manages all braking functions?
Ref: (FOM VOL. III-DSC-32-30-10)
- Normal Brakes: Braking Steering Control Unit (BSCU)
- Alternate Brakes: Alternate Braking Control Unit (ABCU)
FORWARD INSTRUMENT PANEL
Q: What happens when you switch the A/SKID & N/W STRG to OFF?
Ref: (FOM VOL. III-DSC-32-30-10, FOM VOL. III-DSC-32-30-20)
- Nosewheel steering deactivated
- Brake pressure is supplied by the Yellow hydraulic system
- Anti-skid is deactivated
- BSCU and ABCU are depowered
- A 1,000 psi pressure limiting valve helps prevent wheel lock up
FORWARD INSTRUMENT PANEL
Q: Which hydraulic systems provide pressure to the brakes?
Ref: (FOM VOL. III-DSC-32-30-10)
- Normal brakes – Green
- Alternate brakes – Yellow backed up by a hydraulic accumulator
FORWARD INSTRUMENT PANEL
Q: What are the four modes of braking?
Ref: (FOM VOL. III-DSC-32-30-10)
- Normal braking
- Alternate braking with antiskid
- Alternate braking without antiskid (max brake pressure 1000 psi)
- Parking brake
FORWARD INSTRUMENT PANEL
Q: When do the Autobrakes activate on landing if armed?
Ref: (FOM VOL. III-DSC-32-30-10)
When the ground spoilers deploy
FORWARD INSTRUMENT PANEL
Q: What is the difference between LOW and MED AUTO BRK?
Ref: (FOM VOL. III-DSC-32-30-20)
- LOW – progressive pressure applied to brakes 4 seconds after ground spoilers deploy to decelerate at 5.6 FPS
- MED - progressive pressure applied to brakes 2 seconds after ground spoilers deploy to decelerate at 9.8 FPS
FORWARD INSTRUMENT PANEL
Q: What does the AUTO BRK green DECEL light indicate?
Ref: (FOM VOL. III-DSC-32-30-20)
Actual rate of deceleration is within 80% of the selected rate
FORWARD INSTRUMENT PANEL
Q: What is the Takeoff setting for Auto Brakes?
Ref: (FOM VOL. III-DSC-32-30-20)
MAX
FORWARD INSTRUMENT PANEL
Q: What will cause the MAX AUTO BRK to activate on a RTO?
Ref: (FOM VOL. III-DSC-32-30-10, FOM VOL. III-DSC-27-10-20)
- Airspeed above 72 knots, and
- Thrust Levers at IDLE, and
- Ground spoiler extension
FORWARD INSTRUMENT PANEL
Q: If you lose Green hydraulic pressure will you have Auto Brakes?
Ref: (FOM VOL. III-DSC-32-30-10)
No, not with the Alternate Brake system
FORWARD INSTRUMENT PANEL
Q: Is Anti-skid available with Alternate Brakes?
Ref: (FOM VOL. III-DSC-32-30-10)
Yes, if certain conditions are met
