Landing Gear

Question 1

What does the Amber BRAKE SOURCE Light indicate?

Answer 1

The Brake Pressure Accumulator is the only power source to the brakes.
This means normal (right hydr. system) and alternate brake (left hydr. system) system pressure is low.

Question 2

What triggers the Landing Gear Lever Lock?

Answer 2

The Air/Ground sensor in the main gear (gear trucks not tilted).

Question 3

What does the Gear DOORS light indicate?

Answer 3

The gear doors are not closed.

Question 4

Touchdown with brakes fully applied.

What will happen?

Answer 4

A touchdown protection is installed to avoid touchdown with locked wheels.
The hydroplane/touchdown protection compares IRS GS with aft wheel speed and releases brake pressure if aft wheels speed is 50kts lower than GS.

Question 5

What triggers the Takeoff Configuration Warning?

Answer 5

The T/O Config Warning is triggered by:

• Park Brake Valve not open
• Slats not in T/O Position
• Flaps not in T/O Position
• Stabilizer out of T/O Range
• Spoiler not in down Detent