Powerplant

Question 1

From where is the Accessory Gearbox drive?

Answer 1

Angled Drive shaft from the Outer (HP) Shaft

Question 2

What services are driven by the Accessory Gearbox?

Answer 2

Oil Pressure, scavenge pumps, High Pressure Fuel Pump, DC Starter/Generator, Permanent Magnetic Alternator.

Question 3

What is the purpose of the Permanent Magnetic Alternator

Answer 3

Independent source of electrical power the FADEC, then the PEC

Question 4

What happens to the display if the ED receives invalid Powerplant data?

Answer 4

Dashes

Question 5

What Power Rating is scheduled when he Condition Levers are set to MIN/850?

Answer 5

MCR

Question 6

What is the purpose of the MCL Key on the Engine Control Panel?

Answer 6

Achieves climb power (MCL), but reselects MCR on reaching cruise level.

Question 7

How many presses of the RDC TOP Selector are required to set a power of 85%?

Answer 7

3

Question 8

What is the maximum Torque that FADEC will schedule if the Power Levers are pushed past the Rating Detent?

Answer 8

125%

Question 9

How can the Power Levers be moved aft of the Flight Idle Position?

Answer 9

Triggers underneath the Power Lever Handgrips.

Question 10

When should Reverse Power be used?

Answer 10

Safety/Stopping performance reasons.

Question 11

Following an Engine Flame-out what would be the first visual indication of a an auto-relight?

Answer 11

Increasing ITT (Indicated Turbine Temperature)

Question 12

Under what conditions would FADEC schedule a Power Uptrim?

Answer 12

> 60% power position and low torque (25%) or low PRPM on one engine.

Question 13

What conditions are required for the Power to be automatically reset from MTOP to MCP following an engine failure on Take-off?

Answer 13

AC BLEED selector moved from MIN, provided at least one bleed switch is ON.

Question 14

At what NH does the Engine Over-speed Protection Circuit activate?

Answer 14

over 106%

Question 15

How is the Engine Over-speed Protection Circuit tested?

Answer 15

Its used to shut off fuel on a normal engine shut down.

Question 16

How is Fuel Heated before reaching the High Pressure Fuel Pump?

Answer 16

Pumped through fuel/oil heat exchanger.

Question 17

What are the limits for checking the Engine Oil Level?

Answer 17

Within 15-30 minutes of engine shut down.

Question 18

At what pressure should the Engine Oil Warning on the CWP illuminate?

Answer 18

44 psi

Question 19

Why is the #2 Engine started first?

Answer 19

To pressurise the Emergency brake system.

Question 20

What should make you suspect the one Engine Ignitor was faulty?

Answer 20

Every alternate start delayed by 8 seconds

Question 21

What would FADEC’s response be to the failure of an Engine to light up?

Answer 21

After firing the second ignitors, it would abort start and shut-off fuel.

Question 22

When would FADEC prevent an Engine Over-temperature during Start-up?

Answer 22

10C over 920C

Question 23

How does FADEC identify a Hung start?

Answer 23

NH does not reach 50% within 70 seconds.

Question 24

How does FADEC’s management of an Air-start from that of a ground-start?

Answer 24

Both ignitors activated, auto abort is inhibited and ITT not actively limited

Question 25

How is the PCU Oil pump powered?

Answer 25

Reduction Gearbox

Question 26

How is the Alternate Feather Pump powered?

Answer 26

28V DC from the opposite secondary busbar.

Question 27

What does the green light on the Alternate Feather Pump Selector indicate?

Answer 27

Pump is running

Question 28

What is the Propellor Blade Angle at which the "Hard" Fine Pitch Stop is set?

Answer 28

16 deg

Question 29

What would happen if the Power Lever was inadvertently selected to Disc in flight.

Answer 29

Warning Audio sounds

Question 30

When is Propellor Syncrophase not available?

Answer 30

Condition Levers set to 1020 RPM (Take-off and landing)

Question 31

What happens if an Autofeather Test is no completed?

Answer 31

A/F TEST ABORT appears on ED

Question 32

What conditions are required for Autofeather to ARM?

Answer 32

Power Levers above 60 deg PLA, Torque over 50%, Condition Levers at Max 1020.

Question 33

What will activate the Autofeather?

Answer 33

Torque of effected engine falls below 25% for at least 3 seconds and PRPM below 80%.

Question 34

What is the function of the AUPC?

Answer 34

Protects against failure conditions, driving the propeller to coarse blade angle.

Question 35

When is use of RDC Np not permitted?

Answer 35

Cat II approaches and landing on a contaminated runway.

Question 36

What is the minimum Voltage for a Battery Start of the Engine?

Answer 36

22v

Question 37

How are Cautionary Messages first displayed on the ED?

Answer 37

In amber for 5 secs

Question 38

What does a FADEC CWP Warning indicate?

Answer 38

Indicates failure of one FADEC channel.

Question 39

What RPM should the propeller stabilise at following an Overspeed Governor failure?

Answer 39

1060 RPM (triggers at 1073 RPM