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A-330 Learning Objectives Document September 22, 2021 > CH14 A330 LDGGR > Flashcards

CH14 A330 LDGGR Flashcards

1
Q

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
1. UNLK Lights

  • Illuminates red if there is a __________ between the selected gear position and the actual position of the gear.

VOL II., 32.3.2-6

A

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
1. UNLK Lights

  • Illuminates red if there is a disagreement between the selected gear position and the actual position of the gear.

VOL II., 32.3.2-6

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2
Q

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
2. Green Triangles

  • Illuminates green when LGCIU 1 (LANDING GEAR CONTROL INTERFACE UNIT) detects that the respective gear is _____________\_

VOL II., 32.3.2-6

A

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
2. Green Triangles

  • Illuminates green when LGCIU 1 (LANDING GEAR CONTROL INTERFACE UNIT) detects that the respective gear is downlocked.

VOL II., 32.3.2-6

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3
Q

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
3. Landing Gear Lever

  • UP - The landing gear are selected up.
  • DOWN - The landing gear are selected down.
  • Red Arrow
    • Illuminates red if the gear are not ________ and either:
      • The aircraft is below [_____] ft. RA and flaps ________,
      • or
      • The aircraft is below [_____] RA with flaps __ or __, and engines not at ________ power,
      • or
      • Both ________ altimeters are failed and the flaps are selected to position __, __, or ______.
A

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
3. Landing Gear Lever

  • UP - The landing gear are selected up.
  • DOWN - The landing gear are selected down.
  • Red Arrow
    • Illuminates red if the gear are not downlocked and either:
      • The aircraft is below [750] ft. RA and flaps full,
      • or
      • The aircraft is below [750] RA with flaps 2 or 3, and engines not at TOGA power,
      • or
      • Both radio altimeters are failed and the flaps are selected to position 2, 3, or FULL.

VOL II., 32.3.2-6

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4
Q

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
4. LDG GEAR GRVTY EXTN Selector
• OFF - Landing gear gravity extension is not _______

• DOWN:

  • Isolates the landing gear from the ________ hydraulic system,
  • ________ unlocks the landing gear doors,
  • and allows the landing gear to extend by________.
  • ______ ______ is also lost.

• RESET (momentary action) - Resets the landing gear system.

If the malfunction that required the gravity extension is no longer present, selecting ________:

  • ________ the gear doors
  • Recovers normal gear ______ and ______
  • Recovers ______ ______

• Red Selector Guards -

  • Prevent inadvertent ________of the LDG GEAR GRVTY EXTN selector.
  • Hinged so they can be moved if landing gear gravity ________is desired.

VOL II., 32.3.2-6

A

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
4. LDG GEAR GRVTY EXTN Selector
• OFF - Landing gear gravity extension is not selected.
• DOWN:

  • Isolates the landing gear from the green hydraulic system,
  • electrically unlocks the landing gear doors,
  • and allows the landing gear to extend by gravity.
  • Nosewheel steering is also lost.

• RESET (momentary action) - Resets the landing gear system.

If the malfunction that required the gravity extension is no longer present, selecting RESET:

  • Closes the gear doors
  • Recovers normal gear extension and retraction
  • Recovers nosewheel steering

• Red Selector Guards -

  • Prevent inadvertent movement of the LDG GEAR GRVTY EXTN selector.
  • Hinged so they can be moved if landing gear gravity extension is desired.

VOL II., 32.3.2-6

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5
Q

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
5. DECEL Lights

  • • Illuminates green:
    • if the respective autobrake setting is ________
    • and actual aircraft deceleration reaches [____%] of the TARGET rate for LO or MED or a FIXED rate for MAX.
  • • ON Lights - Illuminates ________ when the respective setting has been ________

VOL II., 32.3.2-6

A

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.
5. DECEL Lights

  • • Illuminates green:
    • if the respective autobrake setting is active
    • and actual aircraft deceleration reaches [80%] of the target rate for LO or MED or a fixed rate for MAX.
  • • ON Lights - Illuminates blue when the respective setting has been armed.

VOL II., 32.3.2-6

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6
Q

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.

  1. A/SKID & N/W STRG Switch
  • ON - Both channels of the ______ ______ ______ ______ (BSCU) are available.
  • OFF - Both channels of the BSCU are off. As a result:
    • ________ braking is lost.
    • ________ is lost.
    • ______ ______ is lost.
    • ________ lost

VOL II., 32.3.2-6

A

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.

  1. A/SKID & N/W STRG Switch
  • ON - Both channels of the Brake Steering Control Unit (BSCU) are available.
  • OFF - Both channels of the BSCU are off. As a result:
    • Normal braking is lost.
    • Antiskid is lost.
    • Nosewheel steering is lost.
    • Autobrakes lost

VOL II., 32.3.2-6

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7
Q

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.

7. BRAKES Indicator

  • Provides indications of ________ hydraulic system brake pressure if ________ braking is unavailable or the ________ brake is set.
  • The top of the green arcs indicate the ________ recommended brake pressure of [________] psi to prevent locking the brakes if the ________ is inoperative.

VOL II., 32.3.2-6

A

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.

7. BRAKES Indicator

  • Provides indications of blue hydraulic system brake pressure if normal braking is unavailable or the parking brake is set.
  • The top of the green arcs indicate the maximum recommended brake pressure of [1000] psi to prevent locking the brakes if the antiskid is inoperative.

VOL II., 32.3.2-6

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8
Q

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.

8. ACCU PRESS Indicator

  • Provides indications of remaining ________ hydraulic accumulator pressure.
  • Normal accumulator pressure is indicated by the ________ band.
  • If the indicator is in the amber band, accumulator pressure is ______ ______.

VOL II., 32.3.2-6

A

LDGGR_01
Understand the control functions and indications on the LND GEAR panel.

8. ACCU PRESS Indicator

  • Provides indications of remaining blue hydraulic accumulator pressure.
  • Normal accumulator pressure is indicated by the green band.
  • If the indicator is in the amber band, accumulator pressure is critically low.

VOL II., 32.3.2-6

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9
Q

LDGGR_02
Understand the control functions of the Parking Brake Handle.
Parking Brake Handle

  • ON - Pull up while turning ________ to engage parking brake.
    • ______ and ______ braking systems are deactivated and braking pressure is applied by the ________ system or ______ ______.
    • PARK BRK memo message is displayed.
  • OFF - Parking brake is released.

VOL II., 32.3.2-6

A

LDGGR_02
Understand the control functions of the Parking Brake Handle.
Parking Brake Handle

  • ON - Pull up while turning clockwise to engage parking brake.
    • Normal and alternate braking systems are deactivated and braking pressure is applied by the blue system or brake accumulator.
    • PARK BRK memo message is displayed.
  • OFF - Parking brake is released.

VOL II., 32.3.2-6

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10
Q

LDGGR_03
Understand the control functions of the Steering Handwheels.

  • Steering handwheels are located on each pilot’s outboard side console.
  • The handwheels command a nosewheel angle that corresponds to the angles printed on their base.
  • Full authority is [____°] L/R and gradually ________ as ground speed increases.
  • As the angle of the handwheel increases, additional steering inputs result in a ______ ______ in nosewheel angle
    • (i.e., nosewheel steering using the handwheels is ______ ______ as the angle of the handwheel______).

VOL II., 32.1.7.1-4

A

LDGGR_03
Understand the control functions of the Steering Handwheels.

  • Steering handwheels are located on each pilot’s outboard side console.
  • The handwheels command a nosewheel angle that corresponds to the angles printed on their base.
  • Full authority is [72°] L/R and gradually decreases as ground speed increases.
  • As the angle of the handwheel increases, additional steering inputs result in a larger change in nosewheel angle
    • (i.e., nosewheel steering using the handwheels is more sensitive as the angle of the handwheel increases).

VOL II., 32.1.7.1-4

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11
Q

LDGGR_03
Understand the control functions of the Steering Handwheels.

  • The handwheels are not ____________
  • Inputs made with one handwheel do not affect the position of the other handwheel.
  • If an input is made with both handwheels simultaneously, the combined input is _______ by the _______ up to the _______ authority for one handwheel.

VOL II., 32.1.7.1-4

A

LDGGR_03
Understand the control functions of the Steering Handwheels.

  • The handwheels are not interconnected.
  • Inputs made with one handwheel do not affect the position of the other handwheel.
  • If an input is made with both handwheels simultaneously, the combined input is summed by the BSCU up to the maximum authority for one handwheel.

VOL II., 32.1.7.1-4

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12
Q

LDGGR_03
Understand the control functions of the Steering Handwheels.

The rudder pedals can be _______ from nosewheel steering (e.g., for checking rudder travel during taxi):

  • by pushing and holding the _____ _____ pushbutton in the center of the steering handwheel.
  • Releasing the pushbutton _______ steering control to the rudder pedals.

VOL II., 32.1.7.1-4

A

LDGGR_03
Understand the control functions of the Steering Handwheels.

The rudder pedals can be disconnected from nosewheel steering (e.g., for checking rudder travel during taxi):

  • by pushing and holding the PEDALS DISC pushbutton in the center of the steering handwheel.
  • Releasing the pushbutton returns steering control to the rudder pedals.

VOL II., 32.1.7.1-4

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13
Q

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
1. Spoiler Indications

  • Indicates the __________ of the spoilers.

VOL II., 32.3.9

A

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
1. Spoiler Indications

  • Indicates the position of the spoilers.

VOL II., 32.3.9

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14
Q

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
2. Gear Door Indications
The door indications provide a graphical representation of the gear door position:

  • locked up (_______),
  • in transit or open (_______),

An _______ indication appears above the gear door if the uplock is engaged when the landing gear is ______._
VOL II., 32.3.9

A

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
2. Gear Door Indications
The door indications provide a graphical representation of the gear door position:

  • locked up (green),
  • in transit or open (amber),

An UPLOCK indication appears above the gear door if the uplock is engaged when the landing gear is DOWNLOCKED.
VOL II., 32.3.9

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15
Q

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
3. Landing Gear Indications

  • Two _______ indicate the landing gear position.
    • The left triangle from_______,
    • the right triangle from _______.
  • _______ Triangle - Landing gear downlocked
  • Red Triangle - Landing gear __ _____
  • No symbol - Landing gear_____
  • XX (amber) - _____ _____

VOL II., 32.3.9

A

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
3. Landing Gear Indications

  • Two triangles indicate the landing gear position.
    • The left triangle from LGCIU 1,
    • the right triangle from LGCIU 2.
  • Green Triangle - Landing gear downlocked
  • Red Triangle - Landing gear in transit
  • No symbol - Landing gear uplocked
  • XX (amber) - LGCIU failure

VOL II., 32.3.9

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16
Q

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
4. Brake Temperatures
Indicates brake temperature on the respective wheel.

  • Normally ______,_
  • minimum display temperature [____°]C.
  • Amber at ____°_ C and above.
  • An arc appears _______ the wheel with the _______ brakes (min temp [__\_°C]),
  • if that temperature is greater than _____°, the arc is _______

VOL II., 32.3.9

A

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
4. Brake Temperatures
Indicates brake temperature on the respective wheel.

  • Normally green,
  • minimum display temperature [0°]C.
  • Amber at 300° C and above.
  • An arc appears above the wheel with the hottest brakes (min temp [100°C]),
  • if that temperature is greater than 300°, the arc is amber

VOL II., 32.3.9

17
Q

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
5. Tire Pressures

  • Deactived.

6. Messages

  • _____ _____ (amber) - Normal braking is lost
  • ANTI-SKID (amber) - _______ function is lost
  • AUTO BRK
    • Green - Auto brake is _______, followed by selected setting LO, MED, or MAX
    • Amber - _______ is lost

VOL II., 32.3.9

A

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
5. Tire Pressures

  • Deactived.

6. Messages

  • NORM BRK (amber) - Normal braking is lost
  • ANTI-SKID (amber) - Anti-skid function is lost
  • AUTO BRK
    • Green - Auto brake is armed, followed by selected setting LO, MED, or MAX
    • Amber - Auto brake is lost

VOL II., 32.3.9

18
Q

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.

7. Antiskid Indications
Vertical bars indicate the anti-skid system.

The “R” is permanently displayed to indicate the bars refer to the brake ______._

  • Green - Brakes are _____: (in flight with _____ _____, or released due to _______ activation during braking)
  • Amber - _______ brake pressure exists when a release command is given, or brake release _______ is detected.

VOL II., 32.3.9

A

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.

7. Antiskid Indications
Vertical bars indicate the anti-skid system.

The “R” is permanently displayed to indicate the bars refer to the brake release.

  • Green - Brakes are released: (in flight with gear extended, or released due to antiskid activation during braking)
  • Amber - Residual brake pressure exists when a release command is given, or brake release fault is detected.

VOL II., 32.3.9

19
Q

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
8. N/W STRG

  • N/W STRG appears in amber if nosewheel steering is lost due to:
    • Failure detected by _______
    • A/SKID & N/W STRG switch _______
    • Failure of both _______ channels

VOL II., 32.3.9

A

LDGGR_04
Discuss normal and abnormal indications on the ECAM WHEEL page.
8. N/W STRG

  • N/W STRG appears in amber if nosewheel steering is lost due to:
    • Failure detected by BSCU
    • A/SKID & N/W STRG switch OFF
    • Failure of both BSCU channels

VOL II., 32.3.9

20
Q

LDGGR_05
Discuss the meaning of the ECAM memos as they relate to landing gear/brakes system.
N/W DISC

  • Displayed in green when the towing lever on the nose gear is in the _______ position.
  • It is displayed in _______ if an engine is running.

VOL II., 32.3.11

A

LDGGR_05
Discuss the meaning of the ECAM memos as they relate to landing gear/brakes system.
N/W DISC

  • Displayed in green when the towing lever on the nose gear is in the TOWING position.
  • It is displayed in amber if an engine is running.

VOL II., 32.3.11

21
Q

LDGGR_05
Discuss the meaning of the ECAM memos as they relate to landing gear/brakes system.
PARK BRK

  • Displayed in green when the parking brake is set.
  • It is displayed in amber if the parking brake is set in _______

VOL II., 32.3.11

A

LDGGR_05
Discuss the meaning of the ECAM memos as they relate to landing gear/brakes system.
PARK BRK

  • Displayed in green when the parking brake is set.
  • It is displayed in amber if the parking brake is set in flight.

VOL II., 32.3.11

22
Q

LDGGR_05
Discuss the meaning of the ECAM memos as they relate to landing gear/brakes system.

AUTO BRK LO

  • Displayed in green when autobrakes LO is armed and the aircraft is below [_____] feet.

VOL II., 32.3.11

A

LDGGR_05
Discuss the meaning of the ECAM memos as they relate to landing gear/brakes system.

AUTO BRK LO

  • Displayed in green when autobrakes LO is armed and the aircraft is below [800] feet.

VOL II., 32.3.11

23
Q

LDGGR_05
Discuss the meaning of the ECAM memos as they relate to landing gear/brakes system.

AUTO BRK MED

  • Displayed in green when autobrakes MED is armed and the aircraft is below [_____] feet.

VOL II., 32.3.11

A

LDGGR_05
Discuss the meaning of the ECAM memos as they relate to landing gear/brakes system.

AUTO BRK MED

  • Displayed in green when autobrakes MED is armed and the aircraft is below [800] feet.

VOL II., 32.3.11

24
Q

LDGGR_06
Recall which hydraulic system is needed for the landing gear and nosewheel steering operations.

  • The ______ hydraulic system is required for all landing gear and nosewheel steering operations.

VOL II, 32.1.3.1

A

LDGGR_06
Recall which hydraulic system is needed for the landing gear and nosewheel steering operations.

  • The green hydraulic system is required for all landing gear and nosewheel steering operations.

VOL II, 32.1.3.1

25
Q

LDGGR_07
Describe the autobrake system design.

  • The autobrakes are armed using the pbs on the center instrument panel.
  • The _____e ___ light in the pb indicates that the respective setting has been armed.
  • The autobrakes can be armed provided all of the following conditions are met:
    • _______ hydraulic pressure is available.
    • _______ is available.
    • At least two _______ are available.
    • At least one _______ is available.
    • No _______ in the brake system.

VOL II., 32.2.4.1-4

A

LDGGR_07
Describe the autobrake system design.

  • The autobrakes are armed using the pbs on the center instrument panel.
  • The blue ON light in the pb indicates that the respective setting has been armed.
  • The autobrakes can be armed provided all of the following conditions are met:
    • Green hydraulic pressure is available.
    • Antiskid is available.
    • At least two PRIMs are available.
    • At least one ADIRU is available.
    • No failure in the brake system.

VOL II., 32.2.4.1-4

26
Q

LDGGR_07
Describe the autobrake system design.

When armed, each of the three settings activate at different times and provide different rates of deceleration.

  • The activation of the autobrakes is dependent on the deployment of the ground spoilers:
  • LO - Used for landing.
    • The brakes are applied starting ___ _____ after _____ _____ _____.
  • MED - Used for landing.
    • The brakes are applied starting at _____ _____ _____.
    • The deceleration rate is higher than _____.
  • MAX - Used for takeoff only.
    • In case of an aborted takeoff, maximum antiskid braking is used starting when the _____ _____ _____ signal is sent.
    • ground spoilers do not deploy if wheel speed is below ____ knots.

VOL II., 32.2.4.1-4

A

LDGGR_07
Describe the autobrake system design.

When armed, each of the three settings activate at different times and provide different rates of deceleration.

  • The activation of the autobrakes is dependent on the deployment of the ground spoilers:
  • LO - Used for landing.
    • The brakes are applied starting one second after ground spoiler deployment.
  • MED - Used for landing.
    • The brakes are applied starting at ground spoiler deployment.
    • The deceleration rate is higher than LO.
  • MAX - Used for takeoff only.
    • In case of an aborted takeoff, maximum antiskid braking is used starting when the ground spoiler extension signal is sent.
    • ground spoilers do not deploy if wheel speed is below 72 knots.

VOL II., 32.2.4.1-4

27
Q

LDGGR_07
Describe the autobrake system design.

In order for MAX autobrakes to activate:

  • The _____ _____ strut must be compressed.
  • An aborted takeoff must be initiated with wheel speed at least ____ knots
    • (ground spoilers do not deploy if wheel speed is below ____ knots).

VOL II., 32.2.4.1-4

A

LDGGR_07
Describe the autobrake system design.

In order for MAX autobrakes to activate:

  • The nose gear strut must be compressed.
  • An aborted takeoff must be initiated with wheel speed at least 72 knots
    • (ground spoilers do not deploy if wheel speed is below 72 knots).

VOL II., 32.2.4.1-4

28
Q

LDGGR_07
Describe the autobrake system design.

If the autobrakes are active a green _______ light illuminates in the respective pb when:

  • actual aircraft deceleration reaches a _______ rate for LO and MED
  • and a _______ rate for MAX.

If reverse thrust is added during deceleration while LO or MED is active,

  • _______ braking is applied resulting in the same _______ rate
  • and little change in _______ distance.

Note: On a slippery runway, the _______ deceleration rate may not be reached due to antiskid operation.

  • In this case the _______ light will not illuminate.
  • This does not mean that the _______ are not working.

VOL II., 32.2.4.1-4

A

LDGGR_07
Describe the autobrake system design.

If the autobrakes are active a green DECEL light illuminates in the respective pb when:

  • actual aircraft deceleration reaches a target rate for LO and MED
  • and a fixed rate for MAX.

If reverse thrust is added during deceleration while LO or MED is active,

  • less braking is applied resulting in the same deceleration rate
  • and little change in stopping distance.

Note: On a slippery runway, the predetermined deceleration rate may not be reached due to antiskid operation.

  • In this case the DECEL light will not illuminate.
  • This does not mean that the autobrakes are not working.

VOL II., 32.2.4.1-4

29
Q

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

NORMAL
Normal braking uses _______ hydraulic pressure and is available if all of the following conditions are met:

  • _______ hydraulic pressure is available.
  • The main landing gears are on the _______.
  • At least one channel of the _______ is available (A/SKID & NWS switch is ______)_.
  • The PARK BRK is _______.

When normal braking is active:

  • the alternate system is _______
  • and the brake pressure gauge indicates zero.

In normal braking, _____ and _____ are available.

The loss of normal braking is indicated by an amber _______ message on the WHEEL page.

VOL. II, 32.2.3.2

A

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

NORMAL
Normal braking uses green hydraulic pressure and is available if all of the following conditions are met:

  • Green hydraulic pressure is available.
  • The main landing gears are on the ground.
  • At least one channel of the BSCU is available (A/SKID & NWS switch is ON).
  • The PARK BRK is OFF.

When normal braking is active:

  • the alternate system is depressurized
  • and the brake pressure gauge indicates zero.

In normal braking, antiskid and autobrakes are available.

The loss of normal braking is indicated by an amber NORM BRK message on the WHEEL page.

VOL. II, 32.2.3.2

30
Q

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

  • The alternate brake system uses _______ hydraulic pressure.
  • The autobrakes are inoperative if the _______ system is active.
  • If the _______ is available, antiskid may be available on the alternate system. NOT LOD

VOL. II, 32.2.3.3

A

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

  • The alternate brake system uses blue hydraulic pressure.
  • The autobrakes are inoperative if the alternate system is active.
  • If the _BSCU_ is available, antiskid may be available on the alternate system. NOT LOD

VOL. II, 32.2.3.3

31
Q

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

The brake system will degrade to alternate braking, and antiskid may be available, if:

  • _______ hydraulic pressure is low and any of the following conditions are met:
    • _______ hydraulic pressure is available.
    • One channel of the _______ is available (A/SKID & NWS switch is _______).
    • The PARK BRK is _______.

VOL. II, 32.2.3.3

A

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

The brake system will degrade to alternate braking, and antiskid may be available, if:

  • Green hydraulic pressure is low and any of the following conditions are met:
    • Blue hydraulic pressure is available.
    • One channel of the BSCU is available (A/SKID & NWS switch is ON).
    • The PARK BRK is OFF.

VOL. II, 32.2.3.3

32
Q

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

The ___________ indicator, installed on the center instrument panel, provides indications of current brake pressure if the _______ system is active.
VOL. II, 32.2.3.3

A

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

The BRAKES indicator, installed on the center instrument panel, provides indications of current brake pressure if the alternate system is active.
VOL. II, 32.2.3.3

33
Q

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

Antiskid will not be available if alternate braking is active due to either:

  • A failure of ______ ______ of the BSCU or the A/SKID & NWS switch selected _______.
  • Low _____ and _____ hydraulic pressure (only accumulator pressure is available).

The diagram below illustrates how the brake system is configured with the brakes applied in alternate braking as a result of a loss of both channels of the BSCU.

VOL. II, 32.2.3.3

A

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

Antiskid will not be available if alternate braking is active due to either:

  • A failure of both channels of the BSCU or the A/SKID & NWS switch selected OFF.
  • Low green and blue hydraulic pressure (only accumulator pressure is available).

The diagram below illustrates how the brake system is configured with the brakes applied in alternate braking as a result of a loss of both channels of the BSCU.

VOL. II, 32.2.3.3

34
Q

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

A hydraulic accumulator, within the _______ brake system, provides a backup source of_____ hydraulic pressure to the alternate brake system in case of low _______ and _______ hydraulic pressure.

  • Antiskid is not available when _______ braking is in use.
    • This prevents premature exhaustion of _______ pressure.
  • The accumulator will provide a minimum of _______ full brake applications.
  • The _____ _____ indicator, installed on the center instrument panel, provides indications of remaining accumulator pressure.

VOL. II, 32.2.3.3

A

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

ALTERNATE

A hydraulic accumulator, within the alternate brake system, provides a backup source of blue hydraulic pressure to the alternate brake system in case of low green and blue hydraulic pressure.

  • Antiskid is not available when accumulator braking is in use.
    • This prevents premature exhaustion of accumulator pressure.
  • The accumulator will provide a minimum of seven full brake applications.
  • The ACCU PRESS indicator, installed on the center instrument panel, provides indications of remaining accumulator pressure.

VOL. II, 32.2.3.3

35
Q

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

PARKING BRAKE
An _______ controlled parking brake, when set, applies brake pressure from the:

  • _______ hydraulic system
    • or the _______ to the brakes.
  • The parking brake is operated by a control handle located on the left side of the pedestal.

The diagram below illustrates how the brake system is configured when the parking brake is set.
VOL. II, 32.2.3.4

A

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

PARKING BRAKE
An electrically controlled parking brake, when set, applies brake pressure from the:

  • blue hydraulic system
    • or the accumulator to the brakes.
  • The parking brake is operated by a control handle located on the left side of the pedestal.

The diagram below illustrates how the brake system is configured when the parking brake is set.
VOL. II, 32.2.3.4

36
Q

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

PARKING BRAKE
Placing the PARK BRK handle to ON:

  • deactivates _____ and _____e braking modes and the _______ system.

Parking brake pressure is supplied by:

  • _______ hydraulic system pressure
  • or the brake _______ and displayed on the _______ indicator.

VOL. II, 32.2.3.4

A

LDGGR_08

Discuss the normal, alternate, and parking brake operations.

PARKING BRAKE
Placing the PARK BRK handle to ON:

  • deactivates normal and alternate braking modes and the antiskid system.

Parking brake pressure is supplied by:

  • blue hydraulic system pressure
  • or the brake accumulator and displayed on the BRAKES indicator.

VOL. II, 32.2.3.4

A-330 Learning Objectives Document September 22, 2021 (16 decks)

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