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AW169 Type Rating (Leonardo) > Hydraulic Power (29) > Flashcards

Hydraulic Power (29) Flashcards

1
Q

What does the Hyd system supply?

A

No1 - 3xMRA, 1xTRA, TRSOV
No2 - 3xMRA, 1xTRA

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2
Q

How long are the hydraulic components stated to last during an upper deck fire in order to perform a safe landing?

A

5 mins

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3
Q

How are HPS1 & 2 powered?

A

Via the Accessory Gearbox of the MRGB

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4
Q

When does the TRSOV activate?

A

At 55% on PCM1

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5
Q

How much oil can each PCM carry?

A

1.3L

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6
Q

What markings and at what percentages are on the PCMs?

A

REF - 75% (refill)
ALERT - 55%
MIN - 40%

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7
Q

Is there a Hyd Filter CAS message?

A

NO

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8
Q

How is 270bar (3000bar) regulated in the HPS?

A

Using the axial piston pumps with built-in compensator valves

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9
Q

Where are the SOVs fitted within the Hydraulic system?

A

Within the HPS

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10
Q

Hyd fluid operating pressure and temp?

A

3000psi (207bar)
-40 to +135°C

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11
Q

How is the Hyd T&P shown on the PFD and MFD

A

PFD - numbers
MFD - bar and numbers

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12
Q

How many pumps does the Hyd system have?

A

2

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13
Q

At what level does the TRSOV close and on which Hyd system?

A

55% Hyd 1

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14
Q

At what level is [HYD MIN] annunciate?

A

40%

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15
Q

When will you get [1(2) HYD OIL PRESS]?

A

<163bar

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16
Q

When will you get [1(2) HYD OIL TEMP]?

A

> 135°C

17
Q

What does [1(2) HYD SERVO] signify?

A

Loss of at least one servo on that side

18
Q

Does the aircraft specify failure of a hyd pump?

A

No
Hyd synoptic will show the pump as white - off condition)

19
Q

How do you know when a Hyd has to be refilled?

A

Hyd synoptic page willl show at 75%
or by checking the reservoir

20
Q

What happens at 55% on Hyd 1?

A

TRSOV will close automatically by the AMMC

21
Q

What happens if SOV2 has been closed following a failure and there is a subsequent leak in HYD 1?

A

The AMMC keeps the TRSOV open so that they TRA recieves hydraulic power

22
Q

When is the [1(2) HYD MIN] caution posted?

A

At 40%

23
Q

When is TRSOV activated?

A

55%

24
Q

When does the HYD Temp indicate White on Red background>?

A

> 135°C

25
Q

What is the minimum hydraulic temperature for starting the engines?

A

-40°C

AW169 Type Rating (Leonardo) (30 decks)

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