Sovereign Powerplant

Question 1

What engines are on the Sovereign?

Answer 1

PW306C’s

Question 2

What is FADEC?

Answer 2

Full Authority Digital Electronic Control

Question 3

Does FADEC control the N1 or N2?

Answer 3

N1 above idle

N2 during Start and at idle

Question 4

Where does FADEC get its power?

Answer 4

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

Question 5

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

Answer 5

P1/T1 (RAT) Probes

Sends temperature and pressure information to respective FADEC

Question 6

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

Answer 6

40% N2

Question 7

What type of valve are the BLEED valves?

Answer 7

Solenoid type (NO)

Question 8

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

Answer 8

It will automatically switch to the other Channel

An amber ENGINE CONTROL FAULT L/R will appear

Question 9

Where is ITT measure?

Answer 9

T4.5

Question 10

Why are the STBY instruments considered more accurate?

Answer 10

They’re a direct measurement via the FADEC

Question 11

When are the TAT probes heated?

Answer 11

With activation of the ENG/STAB anti-ice

Question 12

What are the components of the FADEC?

Answer 12

2 EEC’s and 1 EDU

Question 13

What is the purpose of the Engine Diagnostic Unit?

Answer 13

Records Engine Data and FADEC faults

Question 14

What power the EDU?

Answer 14

FADEC

Question 15

Can we SYNC N2?

Answer 15

N1 ONLY

Question 16

Name a few benefits of FADEC?

Answer 16

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

Question 17

What’s the purpose of GND/FLT IDLE?

Answer 17

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

Question 18

How long does FLT IDLE remain after landing? Why?

Answer 18

8 seconds

For potential GA

Question 19

What is GND IDLE?

Answer 19

57 -59% N2

Question 20

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

Answer 20

Amber GROUND IDLE message on EICAS

Question 21

Which Engine is the SYNC master?

Answer 21

LEFT

Question 22

What does the CYAN target N1 indicate?

Answer 22

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

Question 23

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

Answer 23

CYAN ENGINE DISPATCH LIMIT

Question 24

What does an Amber ENGINE FAILED message on EICAS indicated?

Answer 24

The FADEC has shutdown the engine automatically

Question 25

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

Answer 25

A crew member has shutdown the engine | and will extinguish at IDLE RPM on the subsequent engine start

Question 26

When are the engines being SYNC'd?

Answer 26

Between IDLE and MCT

Question 27

What's the purpose of the EVENT marker?

Answer 27

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)

Question 28

What are some reasons to ABORT an engine start?

Answer 28

- No ITT rise within 15 seconds - No N1 by 40% N2 - No GND IDLE by 90 seconds after initial ITT rise

Question 29

When will the FADEC abort the start automatically?

Answer 29

- No ITT within 15 seconds | - ITT above the nominal start trend by 100 degrees C

Question 30

What's the maximum altitude for an inflight start?

Answer 30

FL300

Question 31

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

Answer 31

NO

Question 32

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

Answer 32

Press the DISENGAGE button

Question 33

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

Answer 33

100

Question 34

What does the green IGN indicate?

Answer 34

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

Question 35

Where do the igniters get there power?

Answer 35

EMER BUS

Question 36

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

Answer 36

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

Question 37

How is engine OIL PRESS sensed?

Answer 37

- Via a pressure Transducer to the gage | - Via an independent pressure Switch for the CAS message

Question 38

What percent of engine thrust is bypass air?

Answer 38

75%

Question 39

Is FADEC abort logic active on an inflight start?

Answer 39

NO

Question 40

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

Answer 40

Reset FADEC logic

Question 41

What's the minimum N2 for a windmill start?

Answer 41

9%

Question 42

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

Answer 42

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

Question 43

What's the minimum KIAS for a windmill start?

Answer 43

200

Question 44

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

Answer 44

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

Question 45

What provides power to the FADEC during start?

Answer 45

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

Question 46

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

Answer 46

The non-controlling channel