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Aviation > Sovereign Powerplant > Flashcards

Sovereign Powerplant Flashcards

1
Q

What engines are on the Sovereign?

A

PW306C’s

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2
Q

What is FADEC?

A

Full Authority Digital Electronic Control

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3
Q

Does FADEC control the N1 or N2?

A

N1 above idle

N2 during Start and at idle

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4
Q

Where does FADEC get its power?

A

Dual channel Permanent Magnet Alternator when the engine N2 RPM is above 25%, and

28 volt DC from its respective START BUS as a backup to the PMA and during Engine Start <25% N2

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5
Q

What are the Probes at the 2 o’clock position in the Engine Inlet?

A

P1/T1 (RAT) Probes

Sends temperature and pressure information to respective FADEC

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6
Q

If no N1, at what RPM should you abort the start?

A

40% N2

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7
Q

What type of valve are the BLEED valves?

A

Solenoid type (NO)

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8
Q

What happens if the Controlling FADEC A or B Channel faults?

A

It will automatically switch to the other Channel

An amber ENGINE CONTROL FAULT L/R will appear

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9
Q

Where is ITT measure?

A

T4.5

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10
Q

Why are the STBY instruments considered more accurate?

A

They’re a direct measurement via the FADEC

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11
Q

When are the TAT probes heated?

A

With activation of the ENG/STAB anti-ice

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12
Q

What are the components of the FADEC?

A

2 EEC’s and 1 EDU

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13
Q

What is the purpose of the Engine Diagnostic Unit?

A

Records Engine Data and FADEC faults

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14
Q

What power the EDU?

A

FADEC

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15
Q

Can we SYNC N2?

A

N1 ONLY

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16
Q

Name a few benefits of FADEC?

A
  • Automatic Power Settings (TO,MCT,CRZ,GND/FLT IDLE,ANTI-ICE)
  • Overspeed Protection
  • Ignition Control
  • Engine SYNC
  • BOV Operation
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17
Q

What’s the purpose of GND/FLT IDLE?

A

GND IDLE - Ease of taxi / Brake wear
FLT IDLE - Reduce Engines time to Accelerate in the event of a rejected landing or GA and prevents rollback and possible flameout at altitude

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18
Q

How long does FLT IDLE remain after landing? Why?

A

8 seconds

For potential GA

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19
Q

What is GND IDLE?

A

57 -59% N2

20
Q

What happens if an Engine stays in GND IDLE after takeoff?

A

Amber GROUND IDLE message on EICAS

21
Q

Which Engine is the SYNC master?

A

LEFT

22
Q

What does the CYAN target N1 indicate?

A

The non-controlling FADEC Channel has confirmed the controlling Channels power setting

23
Q

What EICAS message will be generated on the ground with an Amber N1 target?

A

CYAN ENGINE DISPATCH LIMIT

24
Q

What does an Amber ENGINE FAILED message on EICAS indicated?

A

The FADEC has shutdown the engine automatically

25
Q

What does a CYAN ENGINE SHUTDOWN message on EICAS indicate? When will it extinguish?

A

A crew member has shutdown the engine

and will extinguish at IDLE RPM on the subsequent engine start

26
Q

When are the engines being SYNC’d?

A

Between IDLE and MCT

27
Q

What’s the purpose of the EVENT marker?

A

To record on the EDU any significant events that may have occurred with the operation of the engines (Records engine data 4 minutes prior to 1 minute after pressing the button)

28
Q

What are some reasons to ABORT an engine start?

A
  • No ITT rise within 15 seconds
  • No N1 by 40% N2
  • No GND IDLE by 90 seconds after initial ITT rise
29
Q

When will the FADEC abort the start automatically?

A
  • No ITT within 15 seconds

- ITT above the nominal start trend by 100 degrees C

30
Q

What’s the maximum altitude for an inflight start?

A

FL300

31
Q

Will the FADEC automatically abort an engine start if it recognizes NO N1 by 40%N2?

A

NO

32
Q

What is the pilot action if the ENGINE START button remains illuminated after 44% N2?

A

Press the DISENGAGE button

33
Q

What’s the maximum battery amps prior to the second engine start?

A

100

34
Q

What does the green IGN indicate?

A

There is power to at least 1 exciter box on the respective engine

35
Q

Where do the igniters get there power?

A

EMER BUS

36
Q

Why should the throttles be in cutoff for 30 seconds prior to turning the BATTERY buttons OFF?

A

Allow time for engine diagnostic data to be downloaded to EDU’s

37
Q

How is engine OIL PRESS sensed?

A
  • Via a pressure Transducer to the gage

- Via an independent pressure Switch for the CAS message

38
Q

What percent of engine thrust is bypass air?

A

75%

39
Q

Is FADEC abort logic active on an inflight start?

A

NO

40
Q

Why is it important to set the Throttles to cutoff after a flameout?

A

Reset FADEC logic

41
Q

What’s the minimum N2 for a windmill start?

A

9%

42
Q

An Amber OIL LEVEL LOW message on EICAS is illuminated on your preflight, what’s should be your first reaction?

A

How long has the airplane been sitting and is the airplane level

43
Q

What’s the minimum KIAS for a windmill start?

A

200

44
Q

What should you know if you see a CYAN OIL LEVEL LOW L/R message on EICAS during your preflight?

A

Indicates a possible fault in the indicating system (dry motoring may correct the problem)

45
Q

What provides power to the FADEC during start?

A

START BUS up to 25% N2 and the PMA after that

46
Q

Which FADEC Channel computes and positions the N1 indicator on the EICAS?

A

The non-controlling channel

Aviation (9 decks)

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