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A220 > Test 2 > Flashcards

Test 2 Flashcards

1
Q

What is the Primary source for Hydraulic System 1?

A

Engine driven pump 1A

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2
Q

What is the Backup source for System 1?

A

Power transfer unit
(PTU)

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3
Q

What is the Primary source for System 2?

A

Engine driven pump 2A

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4
Q

What is the Backup source for System 2?

A

AC motor pump 2B

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5
Q

What is the Primary source for Hydraulic System 3?

A

AC motor pump 3A

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6
Q

What is the Backup source for System 3?

A

AC motor pump 3B

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7
Q

Where are the 3 hydraulic system components generally located?

A

1 left wtb fairing
2 right wtb fairing
3 aft equip bay

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8
Q

What is the sequence to turn on all 3 hydraulic systems?

A

2B on
PTU on
3A on

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9
Q

Where can we see the hydraulic systems indications?

A

Hydraulic Synoptic Page

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10
Q

How can the Firewall Shutoff Valves (FWSOV) get closed?

A
  1. HYD SOV РВА
  2. Fire PBA
  3. Ні Temp.
    Switch on Rsvr.
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11
Q

When does the EDP Depressurization Valve energize?

A

Aircraft in the air
Engine N2 < 25%
(automatically controlled by
EEC.)

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12
Q

Which system uses 2 large nitrogen filled accumulators?

A

3 System

The accumulators provide hydraulic pressure to the primary hydraulic systems during dual engine failure and the time interval before RAT operation.

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13
Q

What information must be known before servicing hydraulics?

A

Hydraulic fluid temperature

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14
Q

Where can we see hydraulic fluid quantity?

A

Visual QTY Indicator

Fluid QTY Transducer

HYD Synoptic page

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15
Q

How does the A220 maintain Head Pressure on the Reservoir?

A

The Bootstrap
Reservoir uses system pressure for head pressure.

A Check Valve and
Accumulator hold head pressure with system pressure off.

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16
Q

How do we dump Head Pressure on the Reservoir?

A

Rotate the Manual
Depressurization
Valve on the reservoir.
(Gold Knob)

17
Q

What other valve do we use when servicing the reservoir?

A

Push the Low-Pressure
Bleed / Relief Valve to bleed off air.

18
Q

Which flight controls are part of the Electronic Flight Control (EFCS) System?

A

• Ailerons
• Elevators
• Rudder
• Spoilers
• Horizontal Stab.

19
Q

Which flight controls are NOT part of the Electronic Flight Control (EFCS) System?

A

Slats
Flaps. (High lift)

20
Q

What are the flight control input devices in the flight deck called?

A

Inceptors.

Side Stick Controllers
Rudder Pedals
Spoiler Lever
Trim Switches

21
Q

What components do the Inceptors use to interface with the rest of the EFCS?

A

Inceptors Interface
Module (IIM) (3ea.)

22
Q

What components do the lIMs send the Raw Command to?

A

Primary Flight Control
Computers (PFCC) (3ea.)

23
Q

What are the main functions of the Primary Flight Control Computers?

A

• Convert Raw Command inputs to Computed Commands
• Control Laws
• Autopilot
• Autoland

24
Q

What components do the IlMs send the Computed Commands to?

A

Remote Electronics
Units (REU) (10ea.)

25
Q

What components do the REUs send the Computed Commands to?

A

• Power Control Units
• Ground Spoiler Control Unit
• Motor Control Electronics

26
Q

What components provides “clean” power to the EFCS?

A

Fly By Wire Power Converters
FBWPC

27
Q

What are the 4 Modes of the EFCS?

A

Normal mode

PFCC
DIirect Mode

REU
Direct Mode

AFCU
Direct Mode

28
Q

How do you take Side Stick Priority?

A

Latched Priority PBA

Momentary Priority red button on stick

29
Q

How do you perform a Stick Shaker Test?

A

Avionics synoptic page

30
Q

What is one quick way to Reset a Primary Flight Control Computer?

A

Cycle the 3 PFCC
PRIMARY FLIGHT
CONTROLS PANEL
PBAS (3 finger salute)

31
Q

The Motor Control Electronics is used for which flight control?

A

Horizontal stabilizer

32
Q

What are the controlling units called for Slats and Flaps?

A

Slat / Flap Electronic Control Unit

33
Q

What position do the Slats and Flaps go to in ALTN FLAP?

A

3

34
Q

What is the controlling LU for gear retraction ?

A

LGSCUs

35
Q

How do we bypass wheel steering?

A

Nose wheel PBA

A220 (4 decks)

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