Aircraft Landing Gear Control System

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What system is used for normal extension and retraction of the landing gear?

electrically-controlled and hydraulically-actuated

What type of braking system is included in the landing gear system?

Brake-by-Wire (BBW)

What is the purpose of the ground safety pin during ground operations?

To prevent inadvertent collapse of the nose gear

What system is utilized to operate the landing gear normally if the left Engine-Driven Pump (EDP) fails?

Power Transfer Unit (PTU) or Auxiliary (AUX) system Signup and view all the answers

How is the gear extended in case of an emergency?

By using the emergency gear extension system, which supplies pneumatic pressure Signup and view all the answers

What is the purpose of the Weight-On-Wheel (WOW) system in the landing gear?

To provide 'ground' or 'air' mode reference signals to various aircraft systems during ground maintenance Signup and view all the answers

Where is the Landing Gear Control Maintenance Panel located?

On the right side forward of the external power door Signup and view all the answers

What are the two power sources for the control lanes in the LGCU?

LDG GEAR CTRL 1 LESS 28V DC and LDG GEAR CTRL 2 R Main 28V DC Signup and view all the answers

What is the function of the dump valve in the Landing Gear Control Manifolds?

The dump valve is part of the emergency gear system and is repositioned from the normal position by nitrogen pressure when the emergency gear handle is pulled. It allows nitrogen to reposition the gear in an emergency extension. Signup and view all the answers