FORWARD INSTRUMENT PANEL Flashcards
What is the function of the 2 Landing Gear Control and Interface Units (LGCIU)?
o Provide sequencing, operation, monitoring, and indications for the landing gear
• What hydraulic system powers the landing gear and doors?
Green
What happens if your airspeed is 280 knots and you place the Landing Gear lever to
DOWN?
o Nothing. A safety valve shuts off hydraulic power to the landing gear system
when airspeed is above 260 knots.
What controls and manages all braking functions?
The Brake and Steering Control Unit (BSCU)
What happens when you switch the A/SKID & N/W STRG to OFF?
o Lose NWS
o Braking is powered by the Yellow system
o Anti-skid is deactivated
Which hydraulic systems provide pressure to the brakes?
o Normal brakes – Green
o Alternate brakes – Yellow backed up by a hydraulic accumulator
What is the Takeoff setting for Auto Brakes?
o MAX
What will cause the MAX AUTO BRK to activate on a RTO?
o Airspeed > 72KTS
o Thrust Levers at IDLE
o Ground spoiler extension
How many brake applications are available with accumulator pressure?
o Approximately 7 full applications
What is the maximum brake temperature for takeoff (brake fans off)?
o 300° C
What is the maximum brake temperature for takeoff when brake fans where ON?
150 deg. C
What does the BRAKES & ACCU PRESS triple indicator indicate?
o Yellow hydraulic pressure delivered to the left and right brakes
o Yellow system brake accumulator pressure
How do you accomplish the alternate brake check during preflight?
o Place the PARKING BRK to OFF.
o Step on both brake pedals and ensure proper resistance and deflection.
o Release pressure on the brake pedals.
o NOTE: Place the PARKING BRK to ON. If required use the HYD YELLOW
ELEC PUMP to recharge the brake accumulator.
How do you perform the brake check during initial taxi?
o Press the brake pedals to ensure the aircraft slows, and check the brake pressure
on the triple indicator is zero, indicating the Green hydraulic system has taken over.
